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Viessmann Air Source Heat Pump Systems: High-Performance HVAC
Viessmann Vitocal heat pumps: air source heating up to 75 °C with natural R290 refrigerant
A Viessmann Vitocal heat pump is an air source unit that provides heating, cooling and domestic hot water using energy from the outside air. Q-Tech brings together here the Vitocal units it sells today, for homes and commercial use, and the Viessmann hot-water-only heat pumps.
Original accessories, such as Divicon pump groups, connections, brackets and hot water kits, are in Viessmann heat pump accessories.
Models in this collection
| Model | Type | Heating output (A7 W35) | Maximum flow temperature |
|---|---|---|---|
| Vitocal 200-A ie | R290 monobloc with indoor unit; Compact version with 190 l DHW | 2.8 to 5.4 kW | 75 °C |
| Vitocal 150-A | R290 monobloc with indoor unit | 4.0 to 9.1 kW | 70 °C |
| Vitocal 150-A Compact | R290 monobloc with 190 l DHW | 4.0 to 9.1 kW | 70 °C |
| Vitocal 150-A Modular | R290 monobloc, cascades of up to 5 units | 4.0 to 9.1 kW | 70 °C |
| Vitocal 250-A PRO | R290 monobloc for commercial use | 21.5 kW rated (range 8 to 39.5 kW) | 70 °C |
| Vitocal 100-S | R32 split | 4.1 to 8.1 kW | 58 °C |
| Vitocal 111-S | R32 split with DHW cylinder | 4.1 to 8.1 kW | 58 °C |
| Vitocal 262-A | DHW heat pump, R290, with cylinder or for an external cylinder | Hot water only | DHW up to 65 °C on heat pump alone |
| Vitocal 060-A | DHW heat pump, 178 to 254 l | Hot water only | DHW up to 62 °C on heat pump alone |
Data from the Viessmann domestic price list, September 2026.
How to choose your Vitocal
- Radiators at 75 °C: Vitocal 200-A ie.
- Hot water in the same unit: Vitocal 150-A Compact.
- Several units in cascade: Vitocal 150-A Modular.
- Over 20 kW or commercial use: Vitocal 250-A PRO.
- Hot water only: Vitocal 262-A or Vitocal 060-A.
All the heat pump brands at Q-Tech are in air source heat pumps.
Applications
- Replacing a boiler while keeping the radiators, with the Vitocal 200-A ie.
- New homes with underfloor heating and cooling plus domestic hot water, with the Vitocal 150-A or 150-A Compact.
- Commercial premises and buildings, with the Vitocal 250-A PRO or several 150-A Modular units in cascade.
Why buy your Viessmann from Q-Tech?
- Q-Tech is a Viessmann Lead PRO Partner.
- The heat pump arrives inside a pre-assembled plant room, tested in our workshop and ready to connect: see Advanced Pre-Assembly.
- If another company connects it, we first carry out a verification visit with the on-site hourly Expert Technician. To choose with the data of your own case, book our professional technical advice, a paid service.
Frequently asked questions
Can I keep my radiators?
In many cases, yes: the Vitocal 200-A ie reaches 75 °C and the Vitocal 150-A 70 °C, according to Viessmann. It is worth checking the home's heating demand and the radiator surface first.
Which accessories do I need?
It depends on the unit and the installation. Each accessory page shows which Vitocal it fits; they are all in Viessmann heat pump accessories.
What is the delivery time?
Each product page shows the availability of its unit. For very heavy units, transport is quoted separately.
Choose your Vitocal with these data and leave the integration to Q-Tech: your plant room arrives tested and ready to connect.
FP54·261031