Viessmann Vitocal Air Source Heat Pump
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 air source heat pump price UK (2026)
The Boiler Upgrade Scheme takes £7,500 off in England and Wales (£9,000 for off-gas homes replacing oil or LPG heating, until 31 March 2027); your MCS-certified installer claims it for you. Scotland uses the Home Energy Scotland grant and loan instead; Northern Ireland has no equivalent. 0% VAT until 31 March 2027 is already reflected. Smallest model: Vitocal 150-A 08 from £10,000 pre-grant. Largest: Vitocal 150-A 08 up to £15,000. Running cost estimated at ~10,000 kWh of heat a year and 26.32p/kWh electricity (October to December 2026 cap). Accurate as at October 2026.
Warranty: 2 years as standard; 7 years for £360 if a Viessmann-trained installer registers it within 30 days, with a service every 12 months.SCOP is the MCS-certified seasonal efficiency; sound power is the maker's declared ErP figure, the like-for-like noise measure (what you hear next door depends on distance and siting). Prices are indicative; confirm with your MCS-certified installer.
Available Models
Vitocal 150-A 08
Specifications from the makers' datasheets and the MCS product directory, checked October 2026; prices are indicative. Running costs: Estimate for 10,000 kWh of heat a year at 26.32p per kWh (Ofgem price cap, October to December 2026), at a 45°C design flow temperature: the midpoint of the certified 35°C and 55°C SCOPs. Post-grant figures illustrate the £7,500 Boiler Upgrade Scheme in England and Wales. Confirm current models and exact pricing with your MCS-certified installer.
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
Viessmann Vitocal pricing and grants in your region
The hardware is the same everywhere; the support is not. England and Wales use the £7,500 Boiler Upgrade Scheme, Scotland the Home Energy Scotland grant and loan, and Northern Ireland currently has no grant. Each regional guide covers exactly what applies.
Viessmann Vitocal air source heat pump FAQ
How much is a Viessmann Vitocal air source heat pump installed in the UK (2026)?
A Viessmann Vitocal air source heat pump costs £10,000 - £16,000 fully installed in the UK before any support (indicative, June 2026, with 0% VAT already applied). After the £7,500 Boiler Upgrade Scheme grant in England and Wales, that is illustratively £2,500 - £8,500 out of pocket. The smallest model (Vitocal 150-A 08) starts around £10,000 pre-grant; the largest (Vitocal 150-A 08) tops out around £15,000. Combi-to-cylinder conversions and radiator upgrades add to these figures, so always confirm with a written quote.
Is a Viessmann Vitocal heat pump eligible for the £7,500 grant?
Yes. Every air-to-water unit on this page qualifies for the Boiler Upgrade Scheme in England and Wales when it is fitted by an MCS-certified installer, who applies for the grant on your behalf so it comes straight off the quote. Off-gas homes replacing oil or LPG heating can claim £9,000 instead, until 31 March 2027. Scotland uses the Home Energy Scotland grant and loan instead; Northern Ireland currently has no equivalent scheme. Grant details accurate as at October 2026.
Is Viessmann Vitocal a good air source heat pump brand?
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 is best suited to smaller or new-build homes wanting a quiet r290 unit.
What is the warranty on a Viessmann Vitocal heat pump?
2 years as standard; 7 years for £360 if a Viessmann-trained installer registers it within 30 days, with a service every 12 months. Workmanship cover for the installation itself comes separately from your installer. Most extended terms depend on registering the product and annual servicing, so keep your installation paperwork and MCS certificate.
How efficient is a Viessmann Vitocal air source heat pump?
The Vitocal 150-A 08 has an MCS-certified SCOP (seasonal coefficient of performance) of 4.2 at 35°C flow and 3.46 at 55°C, so over a heating season each 1 kWh of electricity delivers about 3.46 to 4.2 kWh of heat, depending on how hot your system runs. At a 45°C design flow and the Ofgem cap rate (26.32p/kWh), 10,000 kWh of heat costs an estimated £685 a year, against roughly £890 for a 90%-efficient gas boiler at the current cap gas rate (7.97p/kWh from 1 October 2026). Estimates, not quotes; heat pump time-of-use tariffs can do better.
How long does a Viessmann Vitocal heat pump last?
With an annual service, heat pumps are generally expected to run well beyond their warranty period (Viessmann Vitocal: 2 years, up to 7 with conditions). Longevity depends on correct sizing (the MCS heat-loss survey), sensible siting and regular servicing. Confirm design life and extended-warranty options for your specific model with your MCS-certified installer.
Viessmann Vitocal vs other brands: which should I pick?
Viessmann Vitocal sits at the premium end of the UK market on pre-grant pricing. It is an R290 monobloc that reaches 70°C flow; Viessmann UK suggests its smaller sizes for new builds and its 10 to 16 kW units for retrofits. See the side-by-side comparisons below for direct head-to-head specs.
Viessmann Vitocal vs other heat pump brands
Heat pump guides
- Air source heat pump installation cost in the UK
- The best air source heat pumps in the UK, compared
- The £7,500 Boiler Upgrade Scheme, explained
- Air source heat pumps: costs, grants and brands
- Heat pump grants in London
- Heat pump grants in South East England
- Heat pump grants in South West England
- Heat pump grants in East of England
- Heat pump grants in East Midlands
- Heat pump grants in West Midlands
- Heat pump grants in Yorkshire and the Humber
- Heat pump grants in North West England
- Heat pump grants in North East England
- Heat pump grants in Scotland
- Heat pump grants in Wales
- Heat pump grants in Northern Ireland
Other heat pump brands
Where are you?
See indicative costs and local installers for your area