Caldera mural de condensación a gas Vitodens 050-W VIESSMANN - Q-Tech ®
Caldera mural de condensación a gas Vitodens 050-W VIESSMANN - Q-Tech ®
Caldera mural de condensación a gas Vitodens 050-W VIESSMANN - Q-Tech ®

VIESSMANN Vitodens 050-W wall-mounted gas condensing boiler

Power
Regular price€2.529,92
/
Shipping calculated at checkout.

  • In stock, ready to ship
  • Backordered, shipping soon

At Q-TECH, we apply the same clear rules for everyone: the law protects you, and when applied correctly, it protects us as well. By processing your purchase, you accept our General Terms and Conditions of Sale. If you are purchasing as a consumer (B2C), nothing stated herein limits the rights granted to you by mandatory law (RDL 1/2007, TRLGDCU): the 3-year legal warranty of conformity and the right of withdrawal under the terms and with the exceptions legally provided, which are detailed below. References to "B2B" apply only to businesses and professionals.

Your guarantees

  • 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.
  • Conformity with the description: we guarantee that the equipment will correspond to the published technical description and what one could reasonably expect from it (arts. 115 et seq. TRLGDCU). Images and videos are for guidance only: the manufacturer may supply a more recent revision of the product or introduce minor aesthetic, packaging, or firmware changes, without this constituting a lack of conformity as long as the described characteristics and performance are maintained.
  • Traceability that also protects you: we document the condition, serial number, and seal of each piece of equipment upon shipment, and we video-record the opening of returns; this is your proof of the condition in which the goods were delivered.

Responsible use and your part

  • If you are thinking of returning it, keep it as you received it: without installing or activating it, with its seals, accessories, and packaging intact. This is how to ensure a full refund, without deductions.
  • Handling that exceeds inspection reduces value: handling the equipment beyond what is necessary to verify its nature and operation may result in a real, assessed, and case-by-case justified deduction (art. 108.2 TRLGDCU), never a fixed percentage. In particular: activating or registering the serial number, linking it to a manufacturer's account or app, circulating water through hydraulic equipment, unsealing probes, or installing software or consumables. Initial inspection of the product does not lead to a deduction.
  • The same item must be returned: withdrawal requires returning the supplied unit. Different equipment, or equipment with prior use, age, or wear prior to purchase, does not constitute a valid withdrawal.
  • Installation and cybersecurity, shared responsibility: this is technical hardware; you are responsible for correct installation, credentials, patches, and backups, while we deliver a compliant product. Q-TECH is not liable for damages resulting from poor installation, incorrect configuration, or omission of patches by the customer or third parties (in B2C, without prejudice to the legal warranty and liability for intent or negligence, arts. 86 and 130 TRLGDCU).
  • Delivery of bulky goods: delivery is made to the curb. B2C: transport risk is ours until physical delivery (art. 66 ter); we recommend noting visible damages on the delivery note and notifying us of breakages within 24-48 hours with photographs to activate the insurance. B2B: inspection and notation on the delivery note are mandatory; hidden damages must be reported within 24 hours (art. 366 CCom). Unjustified rejection or incorrect shipping information will entail the actual outbound and return costs (approx. €85-550 for heavy machinery).

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.

You may also be interested in...

The Vitodens 050-W VIESSMANN wall-mounted gas condensing boiler is the ideal solution for new construction or modernization projects that require energy efficiency, compact dimensions, and long-lasting thermal comfort.

Designed with a focus on reliability and accessibility, this boiler combines proven Viessmann technology with intuitive operation, setting a new standard in its category. It is perfect for users (B2C) and professionals (B2B) seeking a long-term investment and superior performance in heating and Domestic Hot Water (DHW).

🚀 Performance and Energy Efficiency (E-E-A-T: Experience)

The Vitodens 050-W maximizes energy savings and comfort thanks to its cutting-edge design.

  • Energy Rating A (DHW and Heating): Offers seasonal space heating energy efficiency of up to 92% (Label A).

  • A+ Potential: When combined with a modulating thermostat (class VI) and outdoor sensor or solar collectors, the rating can be increased to A+.

  • Wide Modulation Range: The wide modulation range of up to 1:8 (on the 25 kW model) reduces start and stop cycles (minimum cycling frequency), ensuring stable operation and extending the equipment's service life, even with low heat demand.

  • High DHW Output: Stands out for its high Domestic Hot Water (DHW) production, ensuring an instant and abundant supply.

🛡️ Long Service Life and Technical Trust (E-E-A-T: Trust and Authority)

Durability is a pillar of the Vitodens 050-W, based on high-quality internal components, which is key to the technical profile.

  • Inox-Radial Stainless Steel Heat Exchanger: This is the heart of the boiler. Made of high-quality stainless steel, it guarantees long-term high efficiency and superior resistance to corrosion and thermal stress.

  • MatriX-Plus Burner and Lambda Pro Control:

    • The MatriX-Plus burner offers lasting performance and low emission values.

    • The automatic Lambda Pro combustion control maintains performance by optimizing the gas-air mixture at all power levels, which reduces consumption and ensures eco-friendly operation.

🔌 Smart Installation and Maintenance

Designed to simplify life for the installer and technical professional.

  • Compact Dimensions: Its wall-mounted design and reduced measurements facilitate integration into limited spaces.
  • Frontal Maintenance: All key components are accessible from the front, significantly simplifying maintenance and technical support tasks.
  • "Plug and Play" Delivery: The boiler is supplied assembled and wired, ready for quick and efficient installation.
  • High-Efficiency Circulation Pump: The pump with integrated speed control reduces electricity consumption by up to 70% compared to standard models.

📶 Connectivity and Simple Handling

Ease of use and remote control are essential today.

  • Intuitive Handling: Control with LED display and touch buttons, making temperature adjustment and functions very simple.

  • Integrated WLAN Connectivity: The Wi-Fi interface allows for communication with the Viessmann app, facilitating remote operation by the user and remote technical service.


🛠️ Technical Specifications

Technical Specifications (Reference Model: 25 kW)

  • Product Type: Wall-mounted gas condensing boiler.
  • Heating Energy Rating: A (Up to 92%).
  • DHW Energy Rating: A.
  • Modulation Range (Typical): Up to 1:8 (for 25 kW model).
  • Heat Exchanger Technology: Inox-Radial Stainless Steel.
  • Combustion System: MatriX-Plus burner with Lambda Pro Control.
  • Circulation Pump: High Efficiency with speed control (Energy savings up to 70%).
  • Component Access: Frontal (For maintenance and technical service).
  • Connectivity: Integrated WLAN interface (Viessmann App operation).
  • Usage Recommendation: New construction and Modernization.

❓ Frequently Asked Questions

Frequently Asked Questions about Vitodens 050-W

What sets the Viessmann Inox-Radial stainless steel heat exchanger apart?

The Inox-Radial heat exchanger guarantees highly efficient heat transfer and exceptional corrosion resistance. This translates into a long service life for the equipment and the maintenance of high efficiency over time, distinguishing it from aluminum or less resistant alloy exchangers.

How does the 1:8 modulation range contribute to efficiency?

A wide modulation range (up to 1:8 on the 25 kW model) allows the boiler to adapt precisely to the home's heat demand. Instead of constantly turning on and off (short cycling), it modulates power to very low levels when demand is minimal, reducing gas consumption and component wear.

Is technical support complicated due to the condensing technology?

No. The Vitodens 050-W is designed for simple maintenance. The accessibility of all components from the front greatly simplifies inspection and technical service tasks for the professional installer, reducing intervention times.


📞 Professional Support

H2: Technical Assistance and Support for Installers

For technical details, installation diagrams, or professional on-site assistance, our technical support team is at your disposal. Contact us via phone or schedule a visit to ensure an optimal installation and commissioning of your Vitodens 050-W boiler.

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.