{"title":"Biomass","description":"\u003ch2\u003eESBE load valves and load units for biomass boilers\u003c\/h2\u003e\n\u003cp\u003eA load valve is a 3-way thermostatic valve that keeps the return temperature to a solid fuel boiler high while it loads the accumulation tank. Here Q-Tech brings together the ESBE load valves and load unit for firewood, pellet or wood chip boilers, in stock in Málaga.\u003c\/p\u003e\n\u003cp\u003eAll three models can be delivered \u003cstrong\u003eassembled and tested in the Q-Tech pre-assembled plant room\u003c\/strong\u003e, ready to connect to the boiler and the tank.\u003c\/p\u003e\n\u003ch3\u003eModels in this collection\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eMaximum boiler output\u003c\/th\u003e\u003cth\u003eOpening temperature\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003ePump included\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-vtc300-thermostatic-load-valve\"\u003eESBE VTC300 load valve\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003e30 kW\u003c\/td\u003e\u003ctd\u003e45, 55 or 60 °C\u003c\/td\u003e\u003ctd\u003eRp ¾ or G 1\u003c\/td\u003e\u003ctd\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-vtc500-thermostatic-load-valve\"\u003eESBE VTC500 load valve\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003e150 kW\u003c\/td\u003e\u003ctd\u003e50, 55 or 60 °C\u003c\/td\u003e\u003ctd\u003eRp 1 or Rp 1¼\u003c\/td\u003e\u003ctd\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-ltc300-load-unit-with-pump\"\u003eESBE LTC300 load unit\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003e50 to 90 kW depending on the opening temperature\u003c\/td\u003e\u003ctd\u003e55, 60, 65 or 70 °C\u003c\/td\u003e\u003ctd\u003eG 1 or G 1¼\u003c\/td\u003e\u003ctd\u003eYes, 6 m\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eData according to ESBE.\u003c\/p\u003e\n\u003ch3\u003eHow to choose the load valve\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eBoiler output:\u003c\/strong\u003e up to 30 kW, the VTC300; up to 150 kW, the VTC500; 50 to 90 kW with the pump included, the LTC300.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eReturn temperature:\u003c\/strong\u003e the one your boiler manufacturer requires. The opening temperature is fixed and is changed by replacing the thermostat.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePump:\u003c\/strong\u003e if the system already has a load pump, a VTC; if you want the valve and the pump in one unit, the LTC300.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFirewood or pellet boilers with a buffer tank in homes.\u003c\/li\u003e\n\u003cli\u003eWood chip or multi-fuel boilers up to 150 kW in warehouses, farms or buildings.\u003c\/li\u003e\n\u003cli\u003eReplacing an old load valve in an existing boiler room.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy rely on Q-Tech for your biomass plant room?\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eWe fit the valve or the load unit in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e, tested in our workshop before it reaches your site.\u003c\/li\u003e\n\u003cli\u003eWith a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e we choose the model with your boiler data, and an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site Expert Technician\u003c\/a\u003e installs or checks it on your site.\u003c\/li\u003e\n\u003cli\u003eAll three models are in stock in Málaga, and we answer you on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a load valve for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt stops water from returning cold to the boiler. According to ESBE, a high return temperature gives higher efficiency, less tar and condensation and a longer boiler life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the opening temperature be changed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, by replacing the thermostat: ESBE VTC931 in the VTC300 and ESBE VTC951 in the VTC500 and the LTC300. Ask us on WhatsApp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you sell biomass boilers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This collection brings together the loading and return protection equipment for the boiler you already have or are going to install.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThey are in stock in Málaga and we dispatch them as soon as we confirm your order.\u003c\/p\u003e\n\u003cp\u003eChoose the model by your boiler output and \u003cstrong\u003eprotect it from cold return water with ESBE and Q-Tech\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"qt-version\"\u003eUpdated 05-11-2026 · v5.4\u003c\/p\u003e","products":[{"product_id":"valvula-carga-termostatica-esbe-vtc300","title":"ESBE VTC300 thermostatic load valve for biomass boilers","description":"\u003ch2\u003eESBE VTC300 thermostatic load valve for biomass boilers up to 30 kW\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE VTC300\u003c\/strong\u003e keeps the return temperature to the \u003cstrong\u003esolid fuel boiler\u003c\/strong\u003e high while it loads the accumulation tank, with no electricity and no adjustment. At Q-Tech we fit it in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e, tested in our workshop before it reaches your site.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003e3-way thermostatic load valve\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE VTC300 series (VTC311 and VTC312)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eReturn protection of solid fuel boilers and loading of accumulation tanks, according to ESBE\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBoiler output\u003c\/th\u003e\u003ctd\u003eUp to 30 kW\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOpening temperature\u003c\/th\u003e\u003ctd\u003e45, 55 or 60 °C depending on the model\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003ctd\u003eInternal thread Rp ¾ (VTC311) or external thread G 1 (VTC312), DN 20\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eNone: an internal thermostat controls the mixing\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eIntegrated and tested in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003eQ-Tech pre-assembled plant room\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the ESBE VTC300?\u003c\/h3\u003e\n\u003cp\u003eThe ESBE VTC300 is a 3-way thermic valve that \u003cstrong\u003eprotects the boiler from cold return water\u003c\/strong\u003e, according to ESBE. It is installed in the return pipe to the boiler and works in any mounting position.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eWhen water returns cold to a solid fuel boiler, combustion does not reach its temperature and tar and condensation build up. ESBE states that a high, stable return temperature gives higher efficiency, less tarring and a longer boiler life.\u003c\/p\u003e\n\u003cp\u003eThe VTC300 starts to open port A when the water at outlet AB reaches its opening temperature, and fully closes port B when port A exceeds it by 10 °C, according to ESBE. It regulates on two ports, so it works \u003cstrong\u003ewith no adjustment valve in the bypass\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003ePressure class\u003c\/th\u003e\u003ctd\u003ePN10\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum differential pressure\u003c\/th\u003e\u003ctd\u003e100 kPa (1 bar) mixing; 30 kPa (0.3 bar) diverting\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia temperature\u003c\/th\u003e\u003ctd\u003eFrom 0 to 100 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eLeakage\u003c\/th\u003e\u003ctd\u003eA to AB, tight sealing; B to AB, maximum 3% of Kvs\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eRangeability Kv to Kv minimum\u003c\/th\u003e\u003ctd\u003e100\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia\u003c\/th\u003e\u003ctd\u003eHeating water to VDI 2035, water with up to 50% glycol and water with up to 28% ethanol\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnections\u003c\/th\u003e\u003ctd\u003eInternal thread Rp (EN 10226-1) and external thread G (ISO 228-1)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaterial\u003c\/th\u003e\u003ctd\u003eDZR brass CW625N, resistant to dezincification\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eDimensions\u003c\/th\u003e\u003ctd\u003eA 70 mm, B 42 mm, C 42 mm, D 46 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConformity\u003c\/th\u003e\u003ctd\u003ePressure Equipment Directive (PED), article 4.3; no CE marking\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eOpening temperature\u003c\/th\u003e\u003cth\u003eKvs (m³ per hour)\u003c\/th\u003e\u003cth\u003eNet weight\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC311\u003c\/td\u003e\u003ctd\u003eRp ¾ internal\u003c\/td\u003e\u003ctd\u003e45 °C ±2 °C\u003c\/td\u003e\u003ctd\u003e3.2\u003c\/td\u003e\u003ctd\u003e0.53 kg\u003c\/td\u003e\u003ctd\u003e51000100\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC311\u003c\/td\u003e\u003ctd\u003eRp ¾ internal\u003c\/td\u003e\u003ctd\u003e55 °C ±2 °C\u003c\/td\u003e\u003ctd\u003e3.2\u003c\/td\u003e\u003ctd\u003e0.53 kg\u003c\/td\u003e\u003ctd\u003e51000200\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC312\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e45 °C ±2 °C\u003c\/td\u003e\u003ctd\u003e3.2\u003c\/td\u003e\u003ctd\u003e0.51 kg\u003c\/td\u003e\u003ctd\u003e51001500\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC312\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e55 °C ±2 °C\u003c\/td\u003e\u003ctd\u003e3.2\u003c\/td\u003e\u003ctd\u003e0.51 kg\u003c\/td\u003e\u003ctd\u003e51001600\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC312\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e60 °C ±2 °C\u003c\/td\u003e\u003ctd\u003e3.2\u003c\/td\u003e\u003ctd\u003e0.51 kg\u003c\/td\u003e\u003ctd\u003e51001700\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor boilers up to 30 kW\u003c\/strong\u003e, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eMaximum differential pressure of 1 bar when mixing and 0.3 bar when diverting.\u003c\/li\u003e\n\u003cli\u003eWith 30 to 50% glycol, the maximum valve output drops by 30 to 40%, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eThe circulation pump is not included; ESBE asks for it to be sized with the pressure drop of the valve and the rest of the system.\u003c\/li\u003e\n\u003cli\u003eThe opening temperature is fixed; it is changed by replacing the thermostat with an \u003ca href=\"\/en-en\/products\/esbe-vtc931-replacement-thermostat\"\u003eESBE VTC931 thermostat\u003c\/a\u003e of another temperature.\u003c\/li\u003e\n\u003cli\u003eESBE recommends fitting shut-off valves on the connections to make maintenance easier.\u003c\/li\u003e\n\u003cli\u003eNo CE marking: it is pressure equipment under article 4.3 of the PED.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eMaximum boiler output\u003c\/th\u003e\u003cth\u003ePump included\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-vtc500-thermostatic-load-valve\"\u003eESBE VTC500 load valve\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf your boiler is above 30 kW\u003c\/td\u003e\u003ctd\u003e150 kW\u003c\/td\u003e\u003ctd\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-ltc300-load-unit-with-pump\"\u003eESBE LTC300 load unit\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf you want the valve and a high-efficiency pump in one unit\u003c\/td\u003e\u003ctd\u003e50 to 90 kW depending on the opening temperature\u003c\/td\u003e\u003ctd\u003eYes, 6 m\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich opening temperature should I choose?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe one your boiler manufacturer requires for the return: 45, 55 or 60 °C. If you tell us your boiler model, we will tell you which valve you need.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the VTC311 and the VTC312?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOnly the connection: the VTC311 has an internal Rp ¾ thread and the VTC312 an external G 1 thread. Both are DN 20 with Kvs 3.2.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the opening temperature be changed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, by replacing the thermostat with an ESBE VTC931 of another temperature. The ESBE video in the Documentation section shows the change.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include the pump?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. If you prefer the valve and the pump in one unit, the ESBE LTC300 load unit integrates both.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is not recommended: it should be installed by a professional, following ESBE's instructions. Q-Tech delivers it fitted in the plant room or installs it with an Expert Technician.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it \u003cstrong\u003ein stock in Málaga\u003c\/strong\u003e and dispatch it as soon as we confirm your order.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech fits the VTC300 in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: assembled and \u003cstrong\u003etested in our workshop\u003c\/strong\u003e, it arrives ready to connect to the boiler and the tank. You can book \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly\u003c\/a\u003e, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e or a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e to choose the model. See also our \u003ca href=\"\/en-en\/collections\/biomasa\"\u003ebiomass collection\u003c\/a\u003e or message us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.esbe.eu\/storage\/1D348AEF194AD994B56CDAE7A4A681B1F2221C7FE7DB02EB5E97726AA111ED01\/2bbfa67ef86a4f4e808b843ae1d5c90a\/pdf\/media\/e472b88e91e44ab28c09285d29cda3c9\/VTC300_es_L_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE VTC300 series data sheet (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/ADADAEC99CE88932F594075653E0425D26146213BEED97456BB0C3BE0956E42B\/026a28f58e4c49db8798cc82b3336257\/pdf\/media\/0948f002312e4e91b1d482853f3b0e0f\/Anv_VTC300_VTC400_98140286_ver%20F_lr.pdf\" target=\"_blank\" rel=\"noopener\"\u003eVTC300 installation instructions (multilingual)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/DB8EE6B4827C2C3B3443C4E69EA55E84828A6E0A48C98B6D85100C53B792C128\/62eb6d015ed249258e563f8268834a69\/pdf\/media\/2f4a127d805447aab67b407a147d4660\/DoC_VTC300_E.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDeclaration of conformity\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/mLzVHvq8khU\" title=\"Replacing the thermostat of the ESBE VTC300 valve (ESBE video)\" width=\"560\" height=\"315\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"ESBE","offers":[{"title":"VTC311 Rp ¾ · apertura 45 °C (51000100)","offer_id":59045841240408,"sku":"SE-CO10240","price":210.54,"currency_code":"EUR","in_stock":true},{"title":"VTC311 Rp ¾ · apertura 55 °C (51000200)","offer_id":59045841273176,"sku":"SE-CO10241","price":210.54,"currency_code":"EUR","in_stock":true},{"title":"VTC312 G 1 · apertura 45 °C (51001500)","offer_id":59045841305944,"sku":"SE-CO10340","price":210.54,"currency_code":"EUR","in_stock":true},{"title":"VTC312 G 1 · apertura 55 °C (51001600)","offer_id":59045841338712,"sku":"SE-CO10341","price":210.54,"currency_code":"EUR","in_stock":true},{"title":"VTC312 G 1 · apertura 60 °C (51001700)","offer_id":59045841371480,"sku":"SE-CO10342","price":210.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-vtc300-vtc312-valvula-carga-g1.webp?v=1793877748"},{"product_id":"valvula-carga-termostatica-esbe-vtc500","title":"ESBE VTC500 thermostatic load valve for biomass boilers up to 150 kW","description":"\u003ch2\u003eESBE VTC500 thermostatic load valve for biomass boilers up to 150 kW\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE VTC500\u003c\/strong\u003e keeps the return to the \u003cstrong\u003esolid fuel boiler\u003c\/strong\u003e hot while it loads the accumulation tank, with no electricity and no adjustment. At Q-Tech we integrate it in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e, tested in our workshop before it reaches your site.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003e3-way thermostatic load valve\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE VTC500 series (VTC511)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eReturn protection of solid fuel boilers and loading of accumulation tanks, according to ESBE\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBoiler output\u003c\/th\u003e\u003ctd\u003eUp to 150 kW\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOpening temperature\u003c\/th\u003e\u003ctd\u003e50, 55 or 60 °C depending on the model\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003ctd\u003eInternal thread Rp 1 (DN 25) or Rp 1¼ (DN 32)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eNone: an internal thermostat controls the mixing\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eIntegrated and tested in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003eQ-Tech pre-assembled plant room\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the ESBE VTC500?\u003c\/h3\u003e\n\u003cp\u003eThe ESBE VTC500 is a cast iron 3-way thermic valve that \u003cstrong\u003eprotects boilers up to 150 kW\u003c\/strong\u003e from return temperatures that are too low, according to ESBE. It is installed in the return pipe to the boiler and works in any mounting position.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eWhen water returns cold to a solid fuel boiler, combustion does not reach its temperature and tar and condensation build up. ESBE states that a high return temperature, guaranteed over the whole combustion cycle, gives higher efficiency, less tarring and a longer boiler life.\u003c\/p\u003e\n\u003cp\u003eThe VTC500 has a thermostat that opens port A when its opening temperature is reached. It regulates on two ports, so it works \u003cstrong\u003ewith no adjustment valve in the bypass\u003c\/strong\u003e, according to ESBE.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003ePressure class\u003c\/th\u003e\u003ctd\u003ePN10\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum differential pressure\u003c\/th\u003e\u003ctd\u003e100 kPa (1 bar); between A and B, 30 kPa (0.3 bar)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia temperature\u003c\/th\u003e\u003ctd\u003eFrom 0 to 110 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eLeakage\u003c\/th\u003e\u003ctd\u003eA to AB, maximum 1% of Kvs; B to AB, maximum 3% of Kvs\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eRangeability Kv to Kv minimum\u003c\/th\u003e\u003ctd\u003e100\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia\u003c\/th\u003e\u003ctd\u003eHeating water to VDI 2035, water with up to 50% glycol and water with up to 28% ethanol\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnections\u003c\/th\u003e\u003ctd\u003eInternal thread Rp (EN 10226-1)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBody and cover material\u003c\/th\u003e\u003ctd\u003eNodular cast iron EN-JS 1050\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConformity\u003c\/th\u003e\u003ctd\u003ePressure Equipment Directive (PED), article 4.3; no CE marking\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eOpening temperature\u003c\/th\u003e\u003cth\u003eKvs (m³ per hour)\u003c\/th\u003e\u003cth\u003eDimensions A, B, C and D\u003c\/th\u003e\u003cth\u003eNet weight\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC511 DN 25\u003c\/td\u003e\u003ctd\u003eRp 1 internal\u003c\/td\u003e\u003ctd\u003e50 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e9\u003c\/td\u003e\u003ctd\u003e93, 34, 69 and 47 mm\u003c\/td\u003e\u003ctd\u003e0.84 kg\u003c\/td\u003e\u003ctd\u003e51020100\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC511 DN 25\u003c\/td\u003e\u003ctd\u003eRp 1 internal\u003c\/td\u003e\u003ctd\u003e55 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e9\u003c\/td\u003e\u003ctd\u003e93, 34, 69 and 47 mm\u003c\/td\u003e\u003ctd\u003e0.84 kg\u003c\/td\u003e\u003ctd\u003e51020200\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC511 DN 25\u003c\/td\u003e\u003ctd\u003eRp 1 internal\u003c\/td\u003e\u003ctd\u003e60 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e9\u003c\/td\u003e\u003ctd\u003e93, 34, 69 and 47 mm\u003c\/td\u003e\u003ctd\u003e0.84 kg\u003c\/td\u003e\u003ctd\u003e51020300\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC511 DN 32\u003c\/td\u003e\u003ctd\u003eRp 1¼ internal\u003c\/td\u003e\u003ctd\u003e50 °C ±4 °C\u003c\/td\u003e\u003ctd\u003e14\u003c\/td\u003e\u003ctd\u003e105, 38, 75 and 55 mm\u003c\/td\u003e\u003ctd\u003e1.4 kg\u003c\/td\u003e\u003ctd\u003e51020600\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC511 DN 32\u003c\/td\u003e\u003ctd\u003eRp 1¼ internal\u003c\/td\u003e\u003ctd\u003e55 °C ±4 °C\u003c\/td\u003e\u003ctd\u003e14\u003c\/td\u003e\u003ctd\u003e105, 38, 75 and 55 mm\u003c\/td\u003e\u003ctd\u003e1.4 kg\u003c\/td\u003e\u003ctd\u003e51020700\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC511 DN 32\u003c\/td\u003e\u003ctd\u003eRp 1¼ internal\u003c\/td\u003e\u003ctd\u003e60 °C ±4 °C\u003c\/td\u003e\u003ctd\u003e14\u003c\/td\u003e\u003ctd\u003e105, 38, 75 and 55 mm\u003c\/td\u003e\u003ctd\u003e1.4 kg\u003c\/td\u003e\u003ctd\u003e51020800\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor boilers up to 150 kW\u003c\/strong\u003e, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eMaximum differential pressure of 1 bar, and 0.3 bar between ports A and B.\u003c\/li\u003e\n\u003cli\u003eGlycol reduces the maximum valve output; ESBE asks for this to be considered when sizing it.\u003c\/li\u003e\n\u003cli\u003eThe circulation pump is not included.\u003c\/li\u003e\n\u003cli\u003eThe opening temperature is fixed; it is changed by replacing the thermostat with an \u003ca href=\"\/en-en\/products\/esbe-vtc951-replacement-thermostat\"\u003eESBE VTC951 thermostat\u003c\/a\u003e of another temperature.\u003c\/li\u003e\n\u003cli\u003eESBE recommends fitting shut-off valves on the connections to make maintenance easier.\u003c\/li\u003e\n\u003cli\u003eNo CE marking: it is pressure equipment under article 4.3 of the PED.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eMaximum boiler output\u003c\/th\u003e\u003cth\u003ePump included\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-vtc300-thermostatic-load-valve\"\u003eESBE VTC300 load valve\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf your boiler does not exceed 30 kW and you want a compact brass valve\u003c\/td\u003e\u003ctd\u003e30 kW\u003c\/td\u003e\u003ctd\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-ltc300-load-unit-with-pump\"\u003eESBE LTC300 load unit\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf you want the valve and a high-efficiency pump in one unit\u003c\/td\u003e\u003ctd\u003e50 to 90 kW depending on the opening temperature\u003c\/td\u003e\u003ctd\u003eYes, 6 m\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich model do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt depends on the boiler output, the flow and the return temperature your boiler manufacturer requires. The DN 25 has Kvs 9 and the DN 32 Kvs 14; send us your boiler data and we will tell you which valve to choose.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the opening temperature be changed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, by replacing the thermostat with an ESBE VTC951 of another temperature, according to ESBE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include the pump?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. If you prefer the valve and the pump in one unit, the ESBE LTC300 load unit integrates both.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need maintenance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNot under normal conditions, according to ESBE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is not recommended: it should be installed by a professional, following ESBE's instructions. Q-Tech delivers it fitted in the plant room or installs it with an Expert Technician.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it \u003cstrong\u003ein stock in Málaga\u003c\/strong\u003e and dispatch it as soon as we confirm your order.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech fits the VTC500 in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: assembled and \u003cstrong\u003etested in our workshop\u003c\/strong\u003e, it arrives ready to connect to the boiler and the tank. You can book \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly\u003c\/a\u003e, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e or a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e to choose the model. See also our \u003ca href=\"\/en-en\/collections\/biomasa\"\u003ebiomass collection\u003c\/a\u003e or message us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/16A7F6153E96E7A8EFEFFFA0CA7F10FC90BD78FCF141BF3C03E9FCEC53BCA0EE\/013ca91e1880412899eec7cbcd7df738\/pdf\/media\/3f0a0a5172e14dc9956c0da6c42dfcd4\/VTC500_en_M_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE VTC500 series data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/2FA8C815A77FABF4541E49EA52F73E4E82F3A427A9F9E0773BA0102E3A55B6FD\/39f955056fa74bba86e511b946899811\/pdf\/media\/87edd02c37ce4686a4163936e05aff97\/Anv_VTC500_98140298_ver%20E_lr.pdf\" target=\"_blank\" rel=\"noopener\"\u003eVTC500 installation instructions (multilingual)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/156247B2517BE554545B6B2911478FEE95220B1781EFAD4D6423A61B6FA52EB8\/fadd130b81cc4c99b213653255387e09\/pdf\/media\/fe3b534abdc94b2dbf7528195f1a7614\/DoC_VTC500_E.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDeclaration of conformity\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/wxCraO7oiiY\" title=\"ESBE VTC500 load valve (ESBE video)\" width=\"560\" height=\"315\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"ESBE","offers":[{"title":"VTC511 Rp 1 · apertura 50 °C (51020100)","offer_id":59045867258200,"sku":"SE-CO10245","price":239.58,"currency_code":"EUR","in_stock":true},{"title":"VTC511 Rp 1 · apertura 55 °C (51020200)","offer_id":59045867290968,"sku":"SE-CO10246","price":239.58,"currency_code":"EUR","in_stock":true},{"title":"VTC511 Rp 1 · apertura 60 °C (51020300)","offer_id":59045867323736,"sku":"SE-CO10247","price":239.58,"currency_code":"EUR","in_stock":true},{"title":"VTC511 Rp 1¼ · apertura 50 °C (51020600)","offer_id":59045867356504,"sku":"SE-CO10250","price":245.63,"currency_code":"EUR","in_stock":true},{"title":"VTC511 Rp 1¼ · apertura 55 °C (51020700)","offer_id":59045867389272,"sku":"SE-CO10251","price":245.63,"currency_code":"EUR","in_stock":true},{"title":"VTC511 Rp 1¼ · apertura 60 °C (51020800)","offer_id":59045867422040,"sku":"SE-CO10252","price":245.63,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-vtc500-vtc511-valvula-carga-fundicion.webp?v=1793877996"},{"product_id":"grupo-de-carga-esbe-ltc300-con-bomba","title":"ESBE LTC300 load unit with high-efficiency pump for biomass boilers","description":"\u003ch2\u003eESBE LTC300 load unit with high-efficiency pump for biomass boilers\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE LTC300\u003c\/strong\u003e combines the thermostatic valve and the pump that load the accumulation tank and protect the \u003cstrong\u003esolid fuel boiler\u003c\/strong\u003e from cold return water in a single unit. At Q-Tech we integrate it in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e, tested in our workshop before it reaches your site.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eLoad unit with integrated thermostatic valve and pump\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE LTC300 series (LTC361, 6 m pump)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eLoading of accumulation tanks and return protection of solid fuel boilers, according to ESBE\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBoiler output\u003c\/th\u003e\u003ctd\u003e50 to 90 kW depending on the opening temperature and the temperature difference\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOpening temperature\u003c\/th\u003e\u003ctd\u003e55, 60, 65 or 70 °C depending on the model\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003ctd\u003eAdapters with G 1 (DN 25) or G 1¼ (DN 32) thread\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003e230 V, 50 Hz; maximum consumption 43 W\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eIntegrated and tested in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003eQ-Tech pre-assembled plant room\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the ESBE LTC300?\u003c\/h3\u003e\n\u003cp\u003eThe ESBE LTC300 is a load unit with an \u003cstrong\u003eintegrated high-efficiency pump\u003c\/strong\u003e that keeps the boiler return temperature high over the whole combustion cycle, according to ESBE. The pump meets the EU directive on energy-related products, with an EEI below 0.20.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eWhen water returns cold to a solid fuel boiler, combustion does not reach its temperature and tar and condensation build up. ESBE states that a high, guaranteed return temperature gives higher efficiency, less tarring and a longer boiler life.\u003c\/p\u003e\n\u003cp\u003eWith a separate valve and pump, both have to be chosen, joined and adjusted on site. The LTC300 arrives as one unit, with \u003cstrong\u003eadjustable pump speed\u003c\/strong\u003e to optimise tank loading and an integrated venting function, according to ESBE.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003ePressure class\u003c\/th\u003e\u003ctd\u003ePN 6\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003e230 V ±10%, 50 Hz; 3 m cable\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum consumption\u003c\/th\u003e\u003ctd\u003e43 W (LTC361)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePump energy efficiency index\u003c\/th\u003e\u003ctd\u003eEEI below 0.20; energy class A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eLeakage\u003c\/th\u003e\u003ctd\u003eA to AB, maximum 0.5% of maximum flow; B to AB, maximum 3%\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eRangeability Kv to Kv minimum\u003c\/th\u003e\u003ctd\u003e100\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia\u003c\/th\u003e\u003ctd\u003eHeating water to VDI 2035, water with up to 50% glycol and water with up to 28% ethanol\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia temperature\u003c\/th\u003e\u003ctd\u003eFrom 0 to 110 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eAmbient temperature\u003c\/th\u003e\u003ctd\u003eFrom 0 to 60 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnections\u003c\/th\u003e\u003ctd\u003eInternal thread G (ISO 228-1)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eValve body material\u003c\/th\u003e\u003ctd\u003eNodular cast iron EN-JS 1050\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConformity\u003c\/th\u003e\u003ctd\u003eCE marking: low voltage, electromagnetic compatibility, RoHS and ecodesign directives; pressure equipment, article 4.3\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eOpening temperature\u003c\/th\u003e\u003cth\u003eMaximum boiler output (temperature difference)\u003c\/th\u003e\u003cth\u003eDimensions A, B, C and D\u003c\/th\u003e\u003cth\u003eNet weight\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLTC361 DN 25\u003c\/td\u003e\u003ctd\u003eG 1\u003c\/td\u003e\u003ctd\u003e55 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e90 kW (35 °C)\u003c\/td\u003e\u003ctd\u003e213, 42, 212 and 118 mm\u003c\/td\u003e\u003ctd\u003e4.4 kg\u003c\/td\u003e\u003ctd\u003e55006000\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLTC361 DN 25\u003c\/td\u003e\u003ctd\u003eG 1\u003c\/td\u003e\u003ctd\u003e65 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e65 kW (25 °C)\u003c\/td\u003e\u003ctd\u003e213, 42, 212 and 118 mm\u003c\/td\u003e\u003ctd\u003e4.4 kg\u003c\/td\u003e\u003ctd\u003e55006200\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLTC361 DN 25\u003c\/td\u003e\u003ctd\u003eG 1\u003c\/td\u003e\u003ctd\u003e70 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e50 kW (20 °C)\u003c\/td\u003e\u003ctd\u003e213, 42, 212 and 118 mm\u003c\/td\u003e\u003ctd\u003e4.4 kg\u003c\/td\u003e\u003ctd\u003e55006300\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLTC361 DN 32\u003c\/td\u003e\u003ctd\u003eG 1¼\u003c\/td\u003e\u003ctd\u003e55 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e90 kW (35 °C)\u003c\/td\u003e\u003ctd\u003e227, 42, 219 and 118 mm\u003c\/td\u003e\u003ctd\u003e4.6 kg\u003c\/td\u003e\u003ctd\u003e55006400\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLTC361 DN 32\u003c\/td\u003e\u003ctd\u003eG 1¼\u003c\/td\u003e\u003ctd\u003e60 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e80 kW (30 °C)\u003c\/td\u003e\u003ctd\u003e227, 42, 219 and 118 mm\u003c\/td\u003e\u003ctd\u003e4.6 kg\u003c\/td\u003e\u003ctd\u003e55006500\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLTC361 DN 32\u003c\/td\u003e\u003ctd\u003eG 1¼\u003c\/td\u003e\u003ctd\u003e65 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e65 kW (25 °C)\u003c\/td\u003e\u003ctd\u003e227, 42, 219 and 118 mm\u003c\/td\u003e\u003ctd\u003e4.6 kg\u003c\/td\u003e\u003ctd\u003e55006600\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLTC361 DN 32\u003c\/td\u003e\u003ctd\u003eG 1¼\u003c\/td\u003e\u003ctd\u003e70 °C ±5 °C\u003c\/td\u003e\u003ctd\u003e50 kW (20 °C)\u003c\/td\u003e\u003ctd\u003e227, 42, 219 and 118 mm\u003c\/td\u003e\u003ctd\u003e4.6 kg\u003c\/td\u003e\u003ctd\u003e55006700\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutput depends on the opening temperature\u003c\/strong\u003e: from 90 kW at 55 °C to 50 kW at 70 °C, according to ESBE.\u003c\/li\u003e\n\u003cli\u003ePressure class PN 6: check the maximum pressure of your system.\u003c\/li\u003e\n\u003cli\u003eA 230 V supply is needed for the pump.\u003c\/li\u003e\n\u003cli\u003eThe opening temperature is fixed; it is changed by replacing the thermostat with an \u003ca href=\"\/en-en\/products\/esbe-vtc951-replacement-thermostat\"\u003eESBE VTC951 thermostat\u003c\/a\u003e of another temperature.\u003c\/li\u003e\n\u003cli\u003eESBE offers optional LTC801 shut-off valves with adapters in several sizes, which are not in this listing.\u003c\/li\u003e\n\u003cli\u003eThe G 1 version at 60 °C is not available in this shop; choose the G 1¼ at 60 °C or the G 1 at 55 or 65 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eMaximum boiler output\u003c\/th\u003e\u003cth\u003ePump included\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-vtc300-thermostatic-load-valve\"\u003eESBE VTC300 load valve\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf your boiler does not exceed 30 kW and already has a pump\u003c\/td\u003e\u003ctd\u003e30 kW\u003c\/td\u003e\u003ctd\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/esbe-vtc500-thermostatic-load-valve\"\u003eESBE VTC500 load valve\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf your boiler exceeds 90 kW or you prefer to choose the pump separately\u003c\/td\u003e\u003ctd\u003e150 kW\u003c\/td\u003e\u003ctd\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich model do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe one that covers your boiler output at the return temperature your boiler manufacturer requires: at 55 °C it reaches 90 kW and at 70 °C, 50 kW. Send us your boiler data and we will tell you which unit to choose.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference from the VTC500 valve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe LTC300 includes the high-efficiency pump; the VTC500 is only the valve and needs a separate pump.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the opening temperature be changed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, by replacing the thermostat with an ESBE VTC951 of another temperature. ESBE has a video showing the change.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich pump does it have?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 6 m high-efficiency pump with a maximum consumption of 43 W; ESBE sells it as a spare part under reference LTC934.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is not recommended: it has hydraulic and electrical connections and should be installed by a professional, following ESBE's instructions. Q-Tech delivers it fitted in the plant room or installs it with an Expert Technician.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it \u003cstrong\u003ein stock in Málaga\u003c\/strong\u003e and dispatch it as soon as we confirm your order.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech fits the LTC300 in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: assembled, wired and \u003cstrong\u003etested in our workshop\u003c\/strong\u003e, it arrives ready to connect to the boiler and the tank. You can book \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly\u003c\/a\u003e, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e or a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e to choose the model. See also our \u003ca href=\"\/en-en\/collections\/biomasa\"\u003ebiomass collection\u003c\/a\u003e or message us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/56641E2B82BF6CC061077F4446ABFDC16200EAB91BD6C942411CF08E8E1C9B8E\/b7327b466eab44d98663ac3e8b740800\/pdf\/media\/f4a3025da75d4c468451ad13d30afa08\/LTC300_en_E_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE LTC300 series data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/EA880F9571618427F3E6A2A3BDD0E6DE568A30212A0A9D8BC83C21D18B9F4B2B\/6e8b808e43bf4229850ba8da979170a5\/pdf\/media\/d3d8e9b692c24e3783b34831e65ad88e\/Anv_LTC300_98141077_versB_lr.pdf\" target=\"_blank\" rel=\"noopener\"\u003eLTC300 installation instructions (multilingual)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/E085D1F2B590A2B3DB1E0BDC0CF504F61534A6C1A5453370BEA54BF2113B9CF0\/f0baee582aa0456a87b5d5959ebe5a78\/pdf\/media\/6e55145a6df748469cdb75388ebb809c\/DoC_LTC300_A.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDeclaration of conformity\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/21N1NgzlDzg\" title=\"Installing the ESBE LTC300 load unit (ESBE video)\" width=\"560\" height=\"315\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"ESBE","offers":[{"title":"LTC361 G 1 · apertura 55 °C (55006000)","offer_id":59045910053208,"sku":"SE-CO10266","price":1109.57,"currency_code":"EUR","in_stock":true},{"title":"LTC361 G 1 · apertura 65 °C (55006200)","offer_id":59045910085976,"sku":"SE-CO10268","price":1109.57,"currency_code":"EUR","in_stock":true},{"title":"LTC361 G 1 · apertura 70 °C (55006300)","offer_id":59045910118744,"sku":"SE-CO10269","price":1109.57,"currency_code":"EUR","in_stock":true},{"title":"LTC361 G 1¼ · apertura 55 °C (55006400)","offer_id":59045910151512,"sku":"SE-CO10271","price":1136.19,"currency_code":"EUR","in_stock":true},{"title":"LTC361 G 1¼ · apertura 60 °C (55006500)","offer_id":59045910184280,"sku":"SE-CO10272","price":1136.19,"currency_code":"EUR","in_stock":true},{"title":"LTC361 G 1¼ · apertura 65 °C (55006600)","offer_id":59045910217048,"sku":"SE-CO10273","price":1136.19,"currency_code":"EUR","in_stock":true},{"title":"LTC361 G 1¼ · apertura 70 °C (55006700)","offer_id":59045910249816,"sku":"SE-CO10274","price":1136.19,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-ltc300-ltc361-grupo-carga-bomba.webp?v=1793878337"},{"product_id":"termostato-recambio-esbe-vtc931","title":"ESBE VTC931 replacement thermostat for VTC300 load valves","description":"\u003ch2\u003eESBE VTC931 replacement thermostat for the VTC300 load valve\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE VTC931\u003c\/strong\u003e is the thermostat that sets the opening temperature of the \u003cstrong\u003eESBE VTC300 load valve\u003c\/strong\u003e. It lets you replace a thermostat or change the opening temperature without changing the valve.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eReplacement thermostat for load valve\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE VTC931\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eThermostat replacement or change of opening temperature\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eTemperature\u003c\/th\u003e\u003ctd\u003e55 or 60 °C depending on the model\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eCompatible with\u003c\/th\u003e\u003ctd\u003eESBE VTC300 series load valves (VTC311 and VTC312)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eNone\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eFitted by an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e in your plant room\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eTemperature\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC931\u003c\/td\u003e\u003ctd\u003e55 °C\u003c\/td\u003e\u003ctd\u003e57000200\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC931\u003c\/td\u003e\u003ctd\u003e60 °C\u003c\/td\u003e\u003ctd\u003e57000300\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor the ESBE VTC300 series\u003c\/strong\u003e: \u003ca href=\"\/en-en\/products\/esbe-vtc300-thermostatic-load-valve\"\u003eVTC311 and VTC312 load valves\u003c\/a\u003e, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eNot suitable for the VTC500 or the LTC300, which use the \u003ca href=\"\/en-en\/products\/esbe-vtc951-replacement-thermostat\"\u003eESBE VTC951 thermostat\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eESBE also makes VTC931 thermostats at 42, 45, 70 and 80 °C, which are not in this listing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is it for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo replace the thermostat of a VTC300 valve or to change its opening temperature. The new thermostat sets the temperature at which the valve starts to open.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to change?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, ESBE states that the thermostat is easy to replace. The ESBE video in the Documentation section shows the process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich temperature should I choose?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe one your boiler manufacturer requires for the return. If in doubt, contact us before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it in stock in Málaga and dispatch it as soon as we confirm your order.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.esbe.eu\/storage\/1D348AEF194AD994B56CDAE7A4A681B1F2221C7FE7DB02EB5E97726AA111ED01\/2bbfa67ef86a4f4e808b843ae1d5c90a\/pdf\/media\/e472b88e91e44ab28c09285d29cda3c9\/VTC300_es_L_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE VTC300 series data sheet, with its thermostats (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/mLzVHvq8khU\" title=\"Replacing the thermostat of the ESBE VTC300 valve (ESBE video)\" width=\"560\" height=\"315\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"ESBE","offers":[{"title":"VTC931 · 55 °C (57000200)","offer_id":59045928239448,"sku":"SE-CO10291","price":82.28,"currency_code":"EUR","in_stock":true},{"title":"VTC931 · 60 °C (57000300)","offer_id":59045928272216,"sku":"SE-CO10292","price":82.28,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-vtc931-termostato-recambio.webp?v=1793881417"},{"product_id":"termostato-recambio-esbe-vtc951","title":"ESBE VTC951 replacement thermostat for VTC500 valves and LTC300 load units","description":"\u003ch2\u003eESBE VTC951 replacement thermostat for VTC500 valves and LTC300 load units\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE VTC951\u003c\/strong\u003e is the thermostat that sets the opening temperature of the \u003cstrong\u003eVTC500 load valve and the LTC300 load unit\u003c\/strong\u003e. It lets you replace a thermostat or change the opening temperature without changing the unit.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eReplacement thermostat for load valve and load unit\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE VTC951\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eThermostat replacement or change of opening temperature\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eTemperature\u003c\/th\u003e\u003ctd\u003e50, 55, 60, 65, 70 or 75 °C depending on the model\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eCompatible with\u003c\/th\u003e\u003ctd\u003eESBE VTC500 load valves and ESBE LTC300 load units\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eNone\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eFitted by an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e in your plant room\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eTemperature\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC951\u003c\/td\u003e\u003ctd\u003e50 °C\u003c\/td\u003e\u003ctd\u003e57020100\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC951\u003c\/td\u003e\u003ctd\u003e55 °C\u003c\/td\u003e\u003ctd\u003e57020200\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC951\u003c\/td\u003e\u003ctd\u003e60 °C\u003c\/td\u003e\u003ctd\u003e57020300\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC951\u003c\/td\u003e\u003ctd\u003e65 °C\u003c\/td\u003e\u003ctd\u003e57020800\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC951\u003c\/td\u003e\u003ctd\u003e70 °C\u003c\/td\u003e\u003ctd\u003e57020400\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTC951\u003c\/td\u003e\u003ctd\u003e75 °C\u003c\/td\u003e\u003ctd\u003e57020500\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor VTC500 and LTC300\u003c\/strong\u003e: \u003ca href=\"\/en-en\/products\/esbe-vtc500-thermostatic-load-valve\"\u003eVTC511 load valves\u003c\/a\u003e and \u003ca href=\"\/en-en\/products\/esbe-ltc300-load-unit-with-pump\"\u003eLTC361 load units\u003c\/a\u003e, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eNot suitable for the VTC300, which uses the \u003ca href=\"\/en-en\/products\/esbe-vtc931-replacement-thermostat\"\u003eESBE VTC931 thermostat\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eOn the LTC300, the maximum boiler output depends on the opening temperature: check it on the load unit listing before changing it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is it for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo replace the thermostat of a VTC500 valve or an LTC300 load unit, or to change its opening temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to change?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, ESBE states that the thermostat is easy to replace. The ESBE video in the Documentation section shows the change on the LTC300.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich temperature should I choose?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe one your boiler manufacturer requires for the return. If in doubt, contact us before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it in stock in Málaga and dispatch it as soon as we confirm your order.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/16A7F6153E96E7A8EFEFFFA0CA7F10FC90BD78FCF141BF3C03E9FCEC53BCA0EE\/013ca91e1880412899eec7cbcd7df738\/pdf\/media\/3f0a0a5172e14dc9956c0da6c42dfcd4\/VTC500_en_M_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE VTC500 series data sheet, with its thermostats\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/HiWl6aWB1PA\" title=\"Replacing the thermostat of the ESBE LTC300 load unit (ESBE video)\" width=\"560\" height=\"315\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"ESBE","offers":[{"title":"VTC951 · 50 °C (57020100)","offer_id":59045928337752,"sku":"SE-CO10285","price":96.8,"currency_code":"EUR","in_stock":true},{"title":"VTC951 · 55 °C (57020200)","offer_id":59045928370520,"sku":"SE-CO10286","price":96.8,"currency_code":"EUR","in_stock":true},{"title":"VTC951 · 60 °C (57020300)","offer_id":59045928403288,"sku":"SE-CO10287","price":96.8,"currency_code":"EUR","in_stock":true},{"title":"VTC951 · 65 °C (57020800)","offer_id":59045928436056,"sku":"SE-CO10319","price":96.8,"currency_code":"EUR","in_stock":true},{"title":"VTC951 · 70 °C (57020400)","offer_id":59045928468824,"sku":"SE-CO10288","price":96.8,"currency_code":"EUR","in_stock":true},{"title":"VTC951 · 75 °C (57020500)","offer_id":59045928501592,"sku":"SE-CO10289","price":96.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-vtc951-termostato-recambio.webp?v=1793881417"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/collections\/coleccion-biomasa-valvulas-grupos-carga-esbe-composicion.webp?v=1793880771","url":"https:\/\/q-tech.es\/en\/collections\/biomasa.oembed","provider":"Q-Tech ® ","version":"1.0","type":"link"}