Vitocal 222-G
Vitocal 222-G

A compact ground source heat pump with integral DHW cylinder

A compact ground source heat pump with a heating output of 5.9 to 10 kW and a cylinder capacity of 170 litres. Designed for use in detached houses, the Vitocal 222-G includes all of the components required for central and DHW heating.  

  • EfficiencyLabel
  • EfficiencyLabel
  • Ground source
    Heat pump
  • Ideal for
  • Up to
    10 kW
  • Energy efficiency
  • DHW capacity
    170 litres
  • Ready for
  • Easy & convenient
  • Smart home
  • Energy efficiency class* A++ / A++
  • Easy to use Vitotronic control unit with plain text display
  • Optimised for the use of power generated on site by photovoltaic systems
  • Easy handling through small footprint, reduced height and split casing
  • High level of DHW convenience through integral DHW cylinder with 170 litre capacity
  • Low running costs thanks to a high COP (coefficient of performance) to EN 14511 of up to 4.5 (brine 0 °C/water 35°C)
  • Maximum flow temperature: 60°C
  • Instantaneous heating water heater integrated as standard
  • Energy efficiency class, DHW heating: A
  • Prepared for Smart Grid and utilisation of photovoltaic power generated on site
  • Very quiet thanks to the sound-optimised appliance design with a sound power level of 43 dB(A) at 0/35°C

*Energy efficiency class as per EU regulation no. 811/2013 for heating, average climatic conditions - low temperature applications (W35)

Key Benefits

Vitocal 222-G heatpump

Complete and particularly space-saving

The Vitocal 222-G compact heat pump unit already integrates all the components required for domestic space heating and DHW heating.

EHPA seal of approval

The EHPA seal of approval serves as proof of the COP (Coefficient of Performance) for funding under the market incentive programme.

The German EHPA Quality Seal Commission certifies that the Viessmann Vitocal 222-G heat pump meets the requirements of the EHPA quality seal regulations.

Vitotronic controller showing the heating curve

Operating convenience

Clear, comfortable, intelligent: The Vitotronic offers perfect functions for fast and exact control of every heating system.


Control Vitotronic 200 - Can also be operated using an app via a smartphone at any time.


Vitoconnect 100 creates the connection

The Vitoconnect 100 interface is required for operation via the app. Retrofitting earlier heat pumps of the Vitocal series (from year of construction 2010) is possible at any time.

Vitoconnect connector
ViCare mobile app

ViCare App

The ViCare app enables system users to control their heating system via smartphone. The operating status can be viewed at any time and the contractor whose details have been stored in the app can be contacted quickly and easily if a fault occurs.

A perfect match – System technology

"The whole is greater than the sum of its parts". Following this philosophy, Viessmann supplies more than high quality, reliable and effective heating components. In fact, all products are part of a matching total concept, where all components complement one another. After all, only perfect interaction between all system components can draw out the maximum potential of our innovative leading technology.

Viessmann system technology incorporates everything you need for a reliable and economical heating system: From the Vitotronic control unit with wireless remote control, powerful Vitocell DHW cylinders for the highest DHW convenience, right up to high grade solar thermal systems for cost effective central heating backup.

Remote Control

The Vitocal 222-G compact heat pump

Complete and extremely compact – the Vitocal 222-G compact heat pump is fully equipped with all of the components required for central and DHW heating. With heating outputs of between 6.1 and 10.0 kW, it is designed for use in detached houses, and flow temperatures up to 60°C mean it can also be used with conventional radiators.

Vitocal 222-G is the attractively priced alternative to the compact appliance of the 300 series. Equipped with a Compliant scroll compressor and a thermostatically controlled expansion valve, it achieves coefficients of performance of up to 4.5 (to EN 14511 at brine 0°C / water 35°C). High efficiency circulation pumps have been newly integrated into the heating and brine circuits.

Operating the appliances is extremely easy thanks to the Vitotronic control unit.

Large DHW cylinder

The Vitocal 222-G compact heat pump offers a high level of DHW convenience thanks to its 170 litre DHW cylinder, which is heated via an internal indirect coil.

Extremely easy to operate

Like all compact appliances, the Vitocal 222-G is also equipped with the extremely user friendly Vitotronic control unit. If in doubt, help is available at the push of a button. The graphic interface will also display heating curves and switching times.

Particularly quiet operation

The sound-optimised appliance design makes these compact heat pumps particularly quiet so that they can even be installed close to the living space.

Heating naturally – naturally cooling as well

The compact heat pumps can provide a pleasant climate in a low energy house, even on hot summer days. The natural cooling function brings cool underground temperatures into the home. For this, the Viessmann NC-Box is required as an accessory.

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Product Data

Vitoconnect 100


The Vitoconnect 100 is a WiFi interface to establishes the connection allowing you to remotely operate your heating system by app, as well as supporting remote maintenance via Vitoguide.


ViCare app

With the new ViCare app, operating your heating system has become even easier and more intuitive. You can adjust heating times to suit your individual requirements using the integral wizard and see cost savings displayed instantly.

Heat pumps

Heat pumps


Vitocal 222-G

Vitocal 222-G

Product section - Vitocal 222-G brine/water heatpump

Nominal heat output (kW)

Vitocal 222-G

6.1 to 10.0 kW

COP during heating operation

Vitocal 222-G

up to 4.3 dependent on output stage

Energy efficiency class

Vitocal 222-G

A ++ * according to EU Regulation No. 811/2013 heating, average climate conditions -. Low temperature application (W35)


Vitocal 222-G

Single family home, new builds


Vitocal 222-G

Vitotronic 200 control unit with plain text graphic display, operation via Vitotrol App is possible

Water heating

Vitocal 222-G

Integrated 170 litre DHW cylinder

Additional features

Vitocal 222-G

"natural cooling" function with optional NC-Box

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