Viessmann Vitodens 200-W B2HA wall-hung gas condensing boiler, front view
Two Viessmann Vitodens 200-W B2HA boilers in cascade with flue header and low loss header, front view
Cascade of two Viessmann Vitodens 200-W B2HA boilers mounted on the wall of a boiler room
Stainless steel Inox-Radial heat exchanger of the Viessmann Vitodens 200-W B2HA
Modulating MatriX cylinder burner of the Viessmann Vitodens 200-W B2HA

Viessmann Vitodens 200-W B2HA wall-hung gas condensing boiler, 49 to 99 kW

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Regular price€4.033,32
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  • 2 in stock
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  • Rights intact: 14 days of withdrawal from receipt for most products—subject to the legal exceptions you will see below, such as goods made to your specifications—and a 3-year legal warranty of conformity, under the terms of the TRLGDCU.
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Made to your measure (Advanced Pre-Assembly)

  • If your order includes equipment, racks, hydraulic assemblies, or technical rooms made or configured according to your specifications (permanent joints, custom cuts or wiring, parameterization, pressure testing), these are custom goods without the right of withdrawal from the conclusion of the contract (art. 103.c TRLGDCU; CJEU Case C-529/19), which is informed before purchasing and documented in the signed Order Note. A test you request without permanent modification retains your right of withdrawal, with only the actual loss of value caused by that test being deducted. Would you prefer to receive it tested, configured, and ready to connect, without assuming these risks? Contract our Advanced Pre-Assembly or the prior technical audit.

If you are purchasing as a business or professional (B2B)

  • The transaction is governed by the Commercial Code: firm sale, without the right of withdrawal; notification of defects within 4 days (apparent) / 30 days (hidden), arts. 336 and 342. Q-TECH acts as a distributor and excludes indirect damages, loss of profit, and data loss, limited to the price of the equipment, without prejudice to the manufacturer's commercial warranty.

Product warnings v1.0 · June 2026. Information summary; the complete and binding conditions are those published at q-tech.es.

Wall-hung gas condensing boiler from 49 to 99 kW for buildings and cascades of up to 594 kW

The Viessmann Vitodens 200-W B2HA is a high-output wall-hung gas condensing boiler, heating only, with an Inox-Radial heat exchanger, a modulating MatriX cylinder burner and Lambda Pro Control combustion management. Q-Tech assembles and tests it in our workshop as part of a pre-assembled plant room, on its own or in a cascade, or integrates it into the building's existing boiler room.

Summary

TypeWall-hung gas condensing boiler, heating only, room-sealed or open-flue operation
Brand and modelViessmann Vitodens 200-W B2HA, 5 outputs: 49, 60, 69, 80 and 99 kW
UseHeating for residential, commercial and public buildings; domestic hot water (DHW) with a separate cylinder
Useful outputFrom 12.0 to 99.0 kW at 50 °C flow and 30 °C return, depending on the model
EfficiencySeasonal efficiency of up to 98% on gross calorific value (109% on net calorific value), according to Viessmann
ControlChoice of constant-temperature Vitotronic 100 HC1B or weather-compensated Vitotronic 200 HO1B
GasNatural gas and LPG; accepts up to 20% hydrogen blended with the gas, according to Viessmann
CascadeFrom 2 to 6 boilers, up to 594 kW, with the Vitotronic 300-K cascade control
Q-Tech installationInside a pre-assembled plant room or on-site by an Expert Technician

What is the Viessmann Vitodens 200-W B2HA?

The Viessmann Vitodens 200-W B2HA is the high-output version of the Vitodens 200-W: a wall-hung gas condensing boiler for heating, from 49 to 99 kW, installed on its own or in a cascade of up to six boilers. Viessmann supplies it set up for natural gas; conversion to LPG is done on the gas valve, with no conversion kit.

Viessmann technology in the Vitodens 200-W B2HA

  • Inox-Radial: high-alloy stainless steel heat exchanger, resistant to corrosion.
  • Modulating MatriX cylinder burner: very low emissions and quiet operation, according to Viessmann.
  • Lambda Pro Control: combustion management for all gas types, with 3-year inspection intervals.
  • Variable-speed fan: quiet operation and low power consumption.

What problem does it solve?

A building with a boiler room of 50 to 600 kW needs output, but also space and back-up. A large floor-standing boiler takes up room and, if it breaks down, leaves the building without heating.

The Vitodens 200-W B2HA hangs on the wall and can be combined in a cascade of 2 to 6 boilers up to 594 kW: the output is shared between several boilers and, if one stops for servicing, the others can keep providing heat.

Technical data

Gas categoryII2N3P, natural gas and LPG; installation types B23, B33 and C13x to C93x
Gas supply pressure20 mbar with natural gas and 50 mbar with LPG
Maximum flow temperature76 °C
Permissible operating pressure4 bar
Heat exchanger volume7.0 l on 49 and 60 kW; 12.8 l on 80 and 99 kW
Flow and returnG 1½; expansion vessel G 1
Gas connectionR ¾ on 49 and 60 kW; R 1 on 80 and 99 kW
Flue outlet and air inletØ 80/125 mm on 49 and 60 kW; Ø 110/150 mm on 69, 80 and 99 kW
Condensate drainØ 20 to 24 mm hose connector
Available fan draught250 Pa
Protection ratingIP X4 to EN 60529
Power supply230 V, 50 Hz, fixed connection with a 16 A fuse maximum
ApprovalCE-0085CN0050
SuppliedBoiler with pipework and wiring ready to connect, wall bracket and white casing; Vitotronic control packed separately

Models and data by variant

OutputUseful output 50 °C and 30 °CUseful output 80 °C and 60 °CRated heat inputSeasonal efficiency and classNoise level at rated loadPower consumptionDimensions (length × width × height)WeightReference with Vitotronic 100 HC1BReference with Vitotronic 200 HO1BEAN
49 kW12.0 to 49.0 kW10.9 to 45.0 kW11.2 to 45.7 kW94%, class A58 dB(A)62 W380 × 480 × 850 mm65 kgB2HAI35B2HAI414054891970948 (HC1B) and 4054891971006 (HO1B)
60 kW12.0 to 60.0 kW10.9 to 55.2 kW11.2 to 56.2 kW94%, class A67 dB(A)115 W380 × 480 × 850 mm65 kgB2HAI36B2HAI42Not published
69 kWUp to 69.0 kWNot publishedNot publishedClass A, according to the price listNot publishedNot published530 × 480 × 850 mm83 kgB2HAJ89B2HAJ90Not published
80 kW20.0 to 80.0 kW18.2 to 74.1 kW18.8 to 75.0 kW94%, no energy label (over 70 kW)56 dB(A)126 W530 × 480 × 850 mm83 kgB2HAI37B2HAI43Not published
99 kW20.0 to 99.0 kW18.2 to 90.9 kW18.8 to 92.9 kW92%, no energy label (over 70 kW)59 dB(A)216 W530 × 480 × 850 mm83 kgB2HAI38B2HAI44Not published

Outputs with natural gas; with LPG the minimum output is higher (17.0 kW on 49 and 60 kW; 30.0 kW on 80 and 99 kW). Sources: Viessmann planning instructions 5828432 ES 4/2025 and Viessmann September 2026 price list; Viessmann does not publish in them the full data table for the 69 kW model.

Compatibility and limits

  • It runs on natural gas and LPG. Conversion to LPG is done on the gas valve, with no conversion kit.
  • Viessmann requires the heating circuit connection set to be ordered with the boiler (with high-efficiency pump and low loss header: ZK03663 on 49 and 60 kW and ZK03831 on 80 and 99 kW); DHW needs the cylinder connection set.
  • From 50 kW, the Spanish RITE regulation requires a separate boiler room, with the main switch outside it.
  • Cascade of 2 to 6 boilers with the Vitotronic 300-K, cascade modules, low loss header or adaptor and Viessmann flue cascade.
  • Control via the ViCare app and remote servicing with Vitoconnect: Viessmann lists them for units up to 60 kW; Q-Tech confirms higher outputs with Viessmann before ordering.
  • Gas and heating installation and certification require a licensed installation company.

When this product is not the right choice

ProductWhen to choose itUseful outputHot water
Viessmann Vitodens 200-WHome or premises needing less than 49 kWUp to 35 kWHeating-only or combi version
Cascade of Vitodens 200-W B2HABuilding needing more than 99 kWUp to 594 kW with 6 boilersWith a separate cylinder
Heat pumpBuilding that wants to move away from gasAccording to the heat load calculationDepends on the unit

Frequently asked questions

What output do I need?

It depends on the heat load of the building. Send us the output of your current boiler, the circuits and the type of emitters on WhatsApp and we will recommend the output or the cascade.

Which control should I choose?

The Vitotronic 200 HO1B controls the boiler according to the outside temperature. The Vitotronic 100 HC1B keeps it at a constant temperature; Viessmann uses it in cascade systems with the Vitotronic 300-K and with external controls.

Does it work with hydrogen?

Viessmann states it is ready for gas with up to 20% hydrogen. Today it runs on natural gas or LPG.

What do I need to order besides the boiler?

The heating circuit connection set required by Viessmann and, for DHW, the cylinder connection set. In a cascade, also the cascade modules, the Vitotronic 300-K and the flue cascade.

What is the lead time?

It is in stock at our warehouse. Because of its weight, transport is quoted separately.

Can I install it myself?

No. It needs a licensed installation company and commissioning by the Viessmann technical service; Q-Tech integrates it and carries out the pre-commissioning check.

Q-Tech installation and support

The Vitodens 200-W B2HA can arrive on site inside a pre-assembled plant room: Q-Tech assembles it in our workshop, on its own or in a cascade, with the rest of the plant room, configures it and runs safety, operating and pressure tests. The plant room arrives tested and ready to connect; the final connection is made by the site installer or by Q-Tech with the on-site Expert Technician by the day. See the process in Pre-Montaje Avanzado and in the Expert Technician workshop pre-assembly service.

If another company installs the boiler, or it replaces a boiler in an existing room, Q-Tech first carries out a verification visit with the on-site hourly Expert Technician. The pre-commissioning check leaves everything ready for the official commissioning by the Viessmann technical service.

To choose the output or the cascade, book a technical call. Components in Viessmann Gas H2 Ready and components.

Documentation

Q-Tech VDI 2035 calculator

Check whether the water in your heating system meets the VDI 2035 guideline (Part 1, 2021). Enter the output, the system volume in litres and the hardness and conductivity of your mains water: the calculator gives you the verdict and the three key figures for filling or topping up the circuit. If you need it, we will send you the full report.

Guidance only: check the manufacturer's requirements.

VDI 2035 calculator: check whether your system water meets the guideline. Open the calculator

Availability and lead times: 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. Because of its weight, transport is quoted separately.

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