Viessmann Vitodens 050-W, 3,2 - 25 kW + 120 l storage tank
Code: Z024818Related products
Product detailed description
+ Viessmann Vitodens 50-W - wall-mounted condensing boiler, output: 25 kW
+ Vitocell 100-W type CUGB - DHW storage tank, volume: 120 litres
+ DHW storage tank sensor
- wall-mounted condensing boiler with the option to connect an external storage tank
- output: 3,2 - 25 kW
- Exceptionally attractive price-to-performance ratio
- Durable and efficient thanks to the Inox-Radial stainless steel heat exchanger
- Inox-Radial heating surfaces with a self-cleaning effect of smooth stainless steel walls thanks to a directed flow of condensate and flue gases
- MatriX-Plus burner with Lambda Pro combustion control for a consistently high level of efficiency and low emission values
- Easy operation via control with an LED display and touch buttons
- With the option to connect to the internet via an integrated WiFi interface for operation and servicing through Viessmann apps
-
Ideal for installation in living spaces thanks to low operating noise and compact dimensions
-
Low installation height simplifies the replacement of an old appliance
- Low number of cycles even at low heat demand thanks to optimised pause intervals and a wide control range of up to 1:8
- Compact dimensions, width of only 400 mm (3,2 to 25 kW)
- With a high-efficiency circulation pump (energy class A)
- Optionally available as a combi or heating-only boiler
- Option to burn natural gas or LPG (not for the B0KA-M version)
PARAMETERS
| Rated heat output | Vitodens 050-W |
| 50/30 °C (kW) | 3,2 - 25,0 |
| 80/60 °C (kW) | 2,9 - 22,4 |
| Dimensions | |
| Length (mm) | 300 |
| Width (mm) | 400 |
| Height (mm) | 700 |
| Weight (kg) | 33 |
| Flue gas outlet connection (Ø mm) | 60 |
| Air supply connection (Ø mm) | 100 |
| Energy efficiency class | A |
- domestic hot water storage tank
- type: CUGB
- volume: 120 litres
- Corrosion-protected steel tank body with Ceraprotect protective enamel.
- Additional cathodic protection via a magnesium anode; an impressed-current anode is available as an optional accessory.
- Heating of the entire water content by a heating coil running deep down to the bottom of the tank
- Low heat losses thanks to perfect full-surface insulation
- Welded immersion sleeve for the tank temperature sensor
- Built-in safety and drain valve
- Built-in height-adjustable feet
- The appliance meets EU ECO Design standards - energy class B
PARAMETERS
Frequently Asked Questions
- How exactly do I choose the output of a Viessmann condensing boiler? The basis is the calculated heat loss of the heated building (most reliably from project documentation or an energy certificate). If you don't have a project, you can roughly estimate around 60-100 W per m² of floor area for a typically insulated house built after 2000, or 100-150 W/m² for an older, uninsulated house - the exact figure, however, varies depending on the number of floors, room height, the number and quality of windows, and the building's orientation. A boiler oversized for its output switches on and off more often (so-called cycling), which shortens its lifespan and reduces efficiency; an undersized boiler, on the other hand, cannot sufficiently heat the house on freezing days.
- Why is a condensing boiler more economical than a conventional one? A condensing boiler additionally uses the heat hidden in the water vapour produced when gas is burned - in a conventional boiler this escapes unused through the flue, while in a condensing boiler it is cooled below the so-called dew point, the vapour condenses, and the released heat is returned to the heating circuit. As a result, condensing boilers achieve an efficiency of approximately 105-110% relative to the calorific value of the gas, compared to a typical 85-92% for conventional boilers.
- What type of flue gas exhaust does this boiler need? Most modern condensing boilers are so-called turbo boilers (with a sealed combustion chamber) and require a coaxial (concentric) or separate flue gas exhaust and combustion air supply routed through an external wall or roof - so a functional chimney is not needed. You can find the exact type and maximum length of the duct (based on a diameter of 60/100 or 80/125 mm) in the technical documentation for the specific model, or consult our customer service.
- What does the ErP energy class shown for the boiler mean? This is the mandatory efficiency label for heating appliances under the EU ErP (Ecodesign) directive, similar to the energy labels on refrigerators. Condensing boilers typically achieve class A, or higher in combination with room control (e.g. A+ when using weather-compensated control and a room thermostat).
- Can I install and connect this boiler myself? No. By law, connection to the natural gas supply, the electrical network, and the flue gas exhaust may only be carried out by a person with the relevant qualification (most often an authorised service technician for the given brand or a gas appliance inspection technician). After installation, the boiler must be commissioned by the manufacturer's authorised service, which is usually also a condition for the warranty to be valid.
- What about servicing and the warranty? Most manufacturers require a regular annual service inspection by an authorised service provider in order for the warranty to remain valid even after its standard expiry (extended warranty for regular servicing is common, especially for the brands Vaillant, Protherm, and Viessmann). You can find the exact warranty terms in the warranty certificate supplied with the boiler.
- What is included in the delivery of this specific product? The exact contents of the package (the boiler itself, and where applicable a hot water storage tank, room control, and other accessories in the case of a set) are stated in the product name and in its technical parameters above on this page.
This particular Viessmann model is supplied in the output range 3,2 - 25 kW. For a boiler type with output modulation, always choose based on the highest demand (the coldest days of the year), since the boiler can regulate its output downward on its own.
Additional parameters
| Category: | with a 120 liter storage tank |
|---|---|
| Warranty: | 2 years |
| Weight: | 40 kg |
| Safety thermostat: | yes |
| Included accessories: | power cable, siphon, manual, warranty card |
| Electronic ignition: | Yes |
| ? Expansion vessel: | 8 l |
| Weight of empty boiler: | 33 kg |
| Upper boiler output: | 25 kW |
| Country of origin: | EU |
| Option to connect a wireless thermostat: | Yes |
| Adjustable heating water temperature range: | 35 - 60 °C |
| Fuel: | natural gas / liquefied gas / 20% hydrogen mixture |
| Flue design: | TURBO |
| Power output curve: | modulated |
| Electrical voltage connection: | 230V |
| DHW connection port: | 1/2" |
| Water connection port: | 3/4" |
| Dimensions: | 700 x 400 x 300 mm |
| Lower boiler output: | 3,2 kW |
| Boiler commissioning: | by a VIESSMANN service technician |
| Boiler intended use: | boiler set with a 120 l storage tank |
| Suitable for underfloor heating: | yes |
| Output at temperature drop 50/30°C: | 3,2 - 25,0 kW |
| Output at temperature drop 80/60°C: | 2,9 - 22,4 kW |
| Boiler heating output: | high output above 16 kW |
| Manufacturer: | Viessmann |
Product rating
Be the first who will post an article to this item!
Leave a rating
List of ratings
Discussion
List of discussions
Marek
Matúš
ATRIA.SK
About the company
Viessmann Group is one of the international manufacturers of heating, industrial and cooling systems. This family business, founded in 1917, employs 12,300 people and the group's turnover reaches 2.65 billion Euros.
With 22 production plants in 12 countries, 68 representations in 31 countries, as well as 120 sales companies, Viessmann is truly internationally oriented. 56 % of turnover comes from abroad.
Complete Viessmann product range
The complete Viessmann product range includes individual solutions with efficient systems and outputs from 1.5 to 120,000 kW for all application areas and all countries. These include wall-mounted condensing units with outputs from 1.9 to 150 kW and stationary condensing systems from 1.9 to 6,000 kW, as well as block combined heat and power units (BCHP) from 1.0 to 530 kWel respectively from 5.3 to 660 kWth. Block combined heat and power units (BCHP) are designed for natural gas/biogas.
The range of regenerative energy systems includes thermal solar systems with flat collectors and vacuum tube collectors for heating domestic hot water, supporting heating and solar cooling of buildings, special heating boilers and combustion units from 4 kW to 50 MW for pellets, heat pumps with outputs from 1.7 to 2,000 kW for the use of heat from the ground, groundwater and ambient air, as well as photovoltaic systems.
For district heating networks and biogas communities, Viessmann also offers everything from one source – from the first feasibility study and planning documents, through the supply of all necessary components such as biogas systems, heat sources, block combined heat and power units, underground heat pipes and apartment delivery stations, to construction and operation.
With an extensive range of temperature-controlled rooms, powerful cooling boxes and units, cooling solutions for food retail as well as accessories and services – the Viessmann group also covers the field of cooling.
Sustainable development
As a family business, Viessmann places particular emphasis on responsible and long-term oriented action, as well as sustainable development. That is why sustainable development is firmly anchored in the company's principles. In all processes, we ensure that we align economy, ecology and social or societal responsibility with each other.
Viessmann is among the leading international manufacturers of intelligent, comfortable and efficient systems for heat production, air conditioning, ventilation and cooling or decentralized electricity generation. Our systems form the basis of comfort, well-being and a strong industry. Based on past successes, we have set ambitious goals. Viessmann will continue to set the pace, create technical milestones and constantly push the boundaries of the possible in the future.
Our brand values
In 1966, the Viessmann company principles were formulated for the first time. They have been and still are important guidelines for our success. In order to align corporate culture with the unfavourable changes in the environment, driven by digitalization, the brand's value code was newly created in 2016. The declared goal is to strengthen creativity and personal responsibility within the company, thus supporting innovation and quickly supporting good ideas. The company's values are guiding principles for our daily actions.
Together
Our relationship with our customers is based on fair partnership with the aim of joint success. We offer our employees good conditions for development.
Responsibly
We have committed ourselves to economic, ecological and social responsibility. Our goal is to protect the climate and preserve natural resources.
Enterprisingly
We are a technological pioneer in our industry and will also continue to contribute to the direction of technical progress in the future.
