Viessmann Vitocal Air Source Heat Pump Cost in Scotland
£10,000 to £16,000 installed before the grant, or £2,500 to £8,500 after a £7,500 grant.
Prices are PumpSwap's indicative figures for Viessmann Vitocal, not quotes. Home Energy Scotland grant (up to £7,500; £9,000 in rural and island areas).
Viessmann, the German heating brand that is now part of Carrier, makes the Vitocal 150-A, an R290 monobloc that reaches 70°C flow. Viessmann UK positions its 4, 6 and 8 kW outdoor units for new builds and the 10 to 16 kW units for retrofits.
Viessmann Vitocal models and running costs in Scotland
Running costs for 10,000 kWh of heat a year at 26.11p per kWh (Ofgem price cap for Southern Scotland, 1 October to 31 December 2026), at a 45°C design flow temperature: the midpoint of each model's MCS-certified 35°C and 55°C SCOPs.
| Model | Size | SCOP 35°C / 55°C | Installed, before grant | Running cost a year |
|---|---|---|---|---|
| Vitocal 150-A 08 smaller or new-build homes. 8 is the size class; rated output 5.6 kW at 7°C outdoors, 35°C flow | 8 kW | 4.2 / 3.46 | £10,000 to £15,000 | £680 |
Pros
- Natural R290 refrigerant, up to 70°C flow
- Declared sound power of 51 dB(A)
Cons
- Standard warranty is 2 years; 7 costs £360
- MCS-certified SCOP (4.2 at 35°C) is below the maker's own 4.4
- Heavy for its rated output (162 kg)
Best for: Smaller or new-build homes wanting a quiet R290 unit. Warranty: 2 years, up to 7 with conditions.
What Scotland means for your heat pump
- Climate. January averages 5.5°C by day and 0.3°C at night, with 72 days of air frost a year (Met Office 1991-2020; UK 1.2°C and 53 days). The heat loss survey sizes the unit for your local design temperature.
- Gas grid. 20% of homes here are off the gas grid (2024 estimate; Great Britain 16%).
- Grant. Home Energy Scotland grant (up to £7,500; £9,000 in rural and island areas).
Full detail for the region, including planning rules and running costs against gas: air source heat pump cost in Scotland.
Viessmann Vitocal prices in towns across Scotland
Other brands in Scotland
Viessmann Vitocal in other regions: London, South East England, South West England, East of England, East Midlands, West Midlands, Yorkshire and the Humber, North West England, North East England, Wales, Northern Ireland.
Frequently asked questions
How much does a Viessmann Vitocal heat pump cost in Scotland?
£10,000 to £16,000 installed before the grant, or £2,500 to £8,500 after a £7,500 grant. These are PumpSwap's indicative 2026 prices; your installer's survey sets the real figure.
Can I get the grant on a Viessmann Vitocal heat pump in Scotland?
Yes, if your home qualifies: the Home Energy Scotland grant is not tied to a brand. Apply and get approval before the work starts.
What would a Viessmann Vitocal heat pump cost to run in Scotland?
Roughly £680 a year for the Vitocal 150-A 08 to deliver 10,000 kWh of heat at 26.11p per kWh (Ofgem price cap for Southern Scotland, 1 October to 31 December 2026). That assumes a 45°C design flow temperature, estimated from its MCS-certified SCOPs of 4.2 at 35°C and 3.46 at 55°C. A lower flow temperature, with bigger radiators or underfloor heating, costs less to run.
Who installs Viessmann Vitocal heat pumps in Scotland?
MCS-certified installers across Scotland fit Viessmann Vitocal. Ask for a heat loss survey and compare two or three quotes on the same basis: unit size, cylinder, radiator changes and warranty.
Heat pump guides for Scotland
Prices, models, efficiency and warranties are indicative and change; confirm with your MCS-certified installer. Climate: Met Office 1991-2020 averages. Energy prices: Ofgem price cap for Southern Scotland, 1 October to 31 December 2026.
Where are you?
See indicative costs and local installers for your area