Viessmann Vitocal Air Source Heat Pump Cost in Northern Ireland
£10,000 to £16,000 installed in Northern Ireland, where there is no heat pump grant; 0% VAT applies until 31 March 2027.
Prices are PumpSwap's indicative figures for Viessmann Vitocal, not quotes. No heat pump grant in Northern Ireland.
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 Northern Ireland
Running costs for 10,000 kWh of heat a year at 34.15p per kWh (Power NI standard tariff including VAT, from 1 July 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 | 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 | £890 |
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 Northern Ireland means for your heat pump
- Climate. January averages 7.2°C by day and 1.7°C at night, with 41 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.
- Heating fuel. 49.5% of Northern Ireland households heat with oil alone, against 31.58% on mains gas alone.
- Grant. No heat pump grant in Northern Ireland.
Full detail for the region, including planning rules and running costs against gas: air source heat pump cost in Northern Ireland.
Viessmann Vitocal prices in towns across Northern Ireland
Other brands in Northern Ireland
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, Scotland, Wales.
Frequently asked questions
How much does a Viessmann Vitocal heat pump cost in Northern Ireland?
£10,000 to £16,000 installed. There is no heat pump grant in Northern Ireland, so that is what you pay; 0% VAT applies until 31 March 2027. These are PumpSwap's indicative 2026 prices.
Can I get the grant on a Viessmann Vitocal heat pump in Northern Ireland?
There is no heat pump grant for homeowners in Northern Ireland, whichever brand you choose. The 0% VAT relief on the installation still applies.
What would a Viessmann Vitocal heat pump cost to run in Northern Ireland?
Roughly £890 a year for the Vitocal 150-A 08 to deliver 10,000 kWh of heat at 34.15p per kWh (Power NI standard tariff including VAT, from 1 July 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 Northern Ireland?
MCS-certified installers across Northern Ireland 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 Northern Ireland
Prices, models, efficiency and warranties are indicative and change; confirm with your MCS-certified installer. Climate: Met Office 1991-2020 averages. Energy prices: Power NI standard tariff including VAT, from 1 July 2026.
Where are you?
See indicative costs and local installers for your area