Viessmann Vitodens 050-W, 3,2 - 25 kW + 100 l storage tank

Product detailed description

Lambda Pro

Another technical innovation from Viessmann is the fully automatic Lambda Pro combustion control. It automatically adapts to all types of gas and every flue gas system. This ensures clean and efficient combustion. It also includes automatic adaptation of the flue gas exhaust.

Inox-Radial stainless steel heat exchanger: Efficient with a long service life

The difference always lies in the stainless steel. The corrosion-resistant Inox-Radial stainless steel heat exchanger is the core of the Vitodens 100-W (combi) units. It converts the input energy into heat with particular efficiency. Practically without losses, with an efficiency level of 98 percent, which is hardly possible to surpass. All this combined with the reliability of quality stainless steel with an exceptionally long service life.

CUTAWAY VIEW OF THE VITODENS 050-W PRODUCT

1. MatriX-Plus burner with Lambda Pro combustion control

2. Inox-Radial heat exchanger

3. LED display with touch buttons

4. Internet Inside

5. High-efficiency pump

6. Expansion vessel (8 litres)

EASY OPERATION

Simple control via

the LED display with touch buttons

User-friendly buttons allow quick setting of the heating and domestic hot water temperature. The operating status and temperatures are shown on the digital display.

ViCare APP

Vitodens wall-mounted gas condensing boilers with the new electronic platform have an integrated WiFi interface. This allows, as needed, a direct internet connection. Through the ViCare app, operating the heating system is completely simple and intuitive. It creates a link to the digital service and is in direct contact with a local professional partner.

ViCare can use the mobile phone's GPS function on request to detect the distance from the heating appliance. If the set distance is exceeded, the room temperature is automatically lowered. You can also extend the system with the ViCare thermostat to enjoy even greater comfort and efficiency.

The app offers the following functions:

● You have an overview of the status of the entire system in real time.

● With a swipe of your finger you set the desired room temperature.

● You set the desired hot water temperature.

● Using the heating time assistant, you can set the switching times for heating and hot water in just a few steps.

● Display of the current outdoor temperature.

● Display of the temperature history for the last few days.

The ViCare app gives you an overview of the current operating status of your heating system. This gives you security and makes everything more predictable for you. Thanks to this, you can program different switching times for each day according to your needs.

You can also select normal or party mode in the app. Party mode can extend the heating time when you have a longer gathering with guests and want to keep it warm for longer. A quick-select saving mode is also available. It lowers the temperature when you are away from home. Not to mention a one-off hot water boost if you want to take a long bath.

Normal mode and party mode are available to users with both Android and Apple devices. Please note that your heating system's control must support this function.

Current appliance status and a direct connection to an experienced professional partner

In addition, the ViCare app offers automatic messages with a current description of your appliance's status. This way you can identify in good time whether there is a problem or whether everything is fine. Similarly, through the ViCare app you have a direct line to a professional partner as soon as a message appears on the heating appliance.

Possible fault messages are easy to recognise. This is because the ViCare app works using a traffic-light system:

● Green: Everything is fine.

● Yellow: Maintenance is required.

● Red: A problem has occurred.

If the field is red, the contact for a professional partner is automatically displayed. For this function, you only need to select the details of the chosen professional partner and save them in the app. Another option is to connect the professional partner directly to the heating system. This requires service authorisation. You can do this with just two clicks. This allows the professional partner to detect faults in good time and possibly even repair them remotely, or come to you with the correct spare parts.

Installing the ViCare app

Installing the ViCare app is easier than you think.

The following requirements apply:

● Internet connection (a data plan independent of time and volume limits).

● Smartphones with the Apple iOS or Google Android operating system (the current version must be downloaded from the relevant store).

● Viessmann Vitoconnect 100 internet interface, type OPTO 1.

● Viessmann gas appliances installed since 2004, heat pumps installed since 2010, and solid fuel heating appliances installed since 2016. Exact compatibility information is available from your authorised professional partner.

Once the ViCare system has been installed and enabled, your professional partner will, based on your choice, be able to monitor your system using the Vitoguide app.

ViCare THERMOSTAT

You can also extend the system with the ViCare digital thermostat and enjoy even greater comfort and efficiency.

Note: The thermostat is not included in the package, available to order separately.

ADVANTAGES:

• 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

VIESSMANN VITOCELL 100-W
- domestic hot water storage tank
- type: CUGA
- volume: 100 litres

Favourable acquisition costs – reliable operation. The attractively priced Vitocell 100-W storage tank is available colour-matched for installation above or below the boiler.

ADVANTAGES:

- 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

 

CUTAWAY VIEW OF THE VITOCELL 100-W PRODUCT

A Inspection and cleaning opening

B Highly efficient all-round thermal insulation

C Heating coil

D Tank body with anti-corrosion treatment, made of steel with Ceraprotect enamelling

PARAMETERS

	VITOCELL 100-W
Tank volume	100 l
Heating water volume	6 l
Gross volume	106 l
Connections
Heating water flow and return	R 1"
Hot and cold water	R 3/4"
Circulation	R 3/4"
Permissible operating pressure
- on the heating water side	10 bar
- on the potable water side	1 MPa
Permissible temperatures
- on the heating water side	160 °C
- on the potable water side	95 °C
Standby losses	1,49 kWh/24 h
Dimensions
Length	574 mm
Width /diameter/	553 mm
Height	836 mm
Weight	51 kg
Heating surface area	0,9 m2
Energy efficiency class	C

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.

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.

• 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.