Air/water heat pump

Air/water heat pump in monobloc design

  • Rated heating output: 2.1 to 14.9 kW
  • High energy efficiency
  • Sustainable operation
  • Cooling function

Rated heating output

2.1 to 14.9 kW


Reliable operation with high efficiency

60 % less space required

Compared to comparable models

Easy operation via ViCare app

Easy operation via ViCare app

Highly suitable for modernisation

With 70 °C flow temperature (at an outside temperature down to -10 °C)

Service Link

Guaranteed faster response time if a service is required

Cooling function

Heating and cooling in one

Climate Protect +++: Protects the environment and the climate

Environmentally responsible, natural refrigerant R290 (propane) with a particularly low GWP100 (global warming potential) of 0.02

Low running costs due to high efficiency

COP (coefficient of performance) to EN 14511: up to 5.0 (at A7/W35)

Integrated energy management system

Ensures transparency in energy consumption and costs

Highly suitable for modernisation: Vitocal 150-A

The new generation of heat pumps

Reliable, compact and more environmentally responsible than ever – the new, innovative heat pump technology from Viessmann makes particularly efficient use of environmental energy for heating and cooling. With a flow temperature of up to 70 °C, the Vitocal 150-A is perfectly suited for retrofit installations. Subject to a system design meeting industry regulations and best practice, together with a weather compensated heating system, it may be possible to retain existing radiators. High energy efficiency, convenient control via app, sustainable operation and attractive design are all convincing features.

Benefits of the Vitocal 150-A

Climate Protect+++ protects the environment and the climate

The new heat pumps in the Vitocal 15x series use the “green” refrigerant R290 (propane), which is considered particularly environmentally responsible with its very low GWP100 (global warming potential) of 0.02.

The Climate Protect label is based on the TEWI (total equivalent warming impact) indicator, which identifies the lifecycle efficiency of the appliance and the global warming potential of the refrigerant used.

OptiPerform – reliable operation with maximum efficiency

The advanced heat pumps from Viessmann work with a patented hydraulic system. With Hydro AutoControl®, the heat pump is operated reliably and with maximum efficiency throughout its entire service life. The unique design not only ensures that your contractor can set up the heat pump with OptiPerform much faster and, therefore, more cost effectively. It also takes up much less space because it is up to 60 percent smaller than comparable systems.

Service link – quick service response times

Heat pumps with a service link use wireless technology to automatically notify the trade partner of any possible faults. Completely free of charge. This eliminates unnecessary travel, as on-site servicing is quicker. Saving time and money.

All Viessmann systems and smart home solutions on one platform

With Viessmann One Base, the entire energy system is operated via just one app – simply, reliably and quickly. The new platform links all devices and electronic applications in the home into one single climate and energy solution. With beneficial consequences: lower energy consumption, a smaller carbon footprint and an overview of running costs that is always up to date. Viessmann One Base makes your own four walls fit for a climate friendly future!

Viessmann One Base – many benefits at a glance

  • Comfort: Control the home energy system conveniently via app – at any time, from anywhere.
  • Efficiency: Particularly efficient, cost-effective operation through networking and optimisation of energy flows.
  • Safety: Automatic notification of system irregularities, together with online troubleshooting capability.
  • Future viability: Future integration of all desired digital services, upgrades and product extensions such as PV with electricity storage and wallbox for e-mobility