Viessmann Vitocal Air Source Heat Pump Cost in South West England

By PumpSwap EditorialLast reviewed 7 October 2026How we research

£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. Boiler Upgrade Scheme grant (£9,000 for off-gas homes on oil or LPG).

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 South West England

Running costs for 10,000 kWh of heat a year at 26.58p per kWh (Ofgem price cap for South Western England, 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	£695

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 South West England means for your heat pump

Climate. January averages 7.8°C by day and 2.3°C at night, with 37 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. 24% of homes here are off the gas grid (2024 estimate; Great Britain 16%). Homes on oil or LPG with no mains gas can claim £9,000 until 31 March 2027.
Grant. Boiler Upgrade Scheme grant (£9,000 for off-gas homes on oil or LPG).

Full detail for the region, including planning rules and running costs against gas: air source heat pump cost in South West England.

Viessmann Vitocal prices in towns across South West England

Other brands in South West England

Viessmann Vitocal in other regions: London, South East England, East of England, East Midlands, West Midlands, Yorkshire and the Humber, North West England, North East England, Scotland, Wales, Northern Ireland.

Frequently asked questions

How much does a Viessmann Vitocal heat pump cost in South West England?

£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 South West England?

Yes, if your home qualifies: the Boiler Upgrade Scheme is not tied to a brand, as long as the installer is MCS-certified. It comes straight off the quote.

What would a Viessmann Vitocal heat pump cost to run in South West England?

Roughly £695 a year for the Vitocal 150-A 08 to deliver 10,000 kWh of heat at 26.58p per kWh (Ofgem price cap for South Western England, 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 South West England?

MCS-certified installers across South West England 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 South West England

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 South Western England, 1 October to 31 December 2026.

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