hheatpumpcosts.co.uk

Compare brands

The brands UK installers actually fit.

15 models from the brands fitted most often in UK homes. Prices are typical installed quotes including cylinder and basic radiator changes — your installer's figure will vary.

By the heatpumpcosts.co.uk editorial team

Brands covered

15

From

£7.5k

Avg SCOP

4.70

Up to

7-yr warranty

Type
Sort

Vaillant

aroTHERM plus

ASHP

R290 refrigerant, very low GWP, quiet operation (33 dB).

Output
3.5–12 kW
SCOP
4.70
Installed
£9.5–13.5k
Warranty
7 years
After £7,500 grantfrom £2,000

Daikin

Altherma 3 R

ASHP

Widely installed in the UK, strong MCS installer network.

Output
4–16 kW
SCOP
4.60
Installed
£8.8–12.5k
Warranty
5 years
After £7,500 grantfrom £1,300

Mitsubishi

Ecodan R290

ASHP

Designed for UK climate, FTC7 controller, R290.

Output
4–14 kW
SCOP
4.70
Installed
£9.2–13.0k
Warranty
7 years
After £7,500 grantfrom £1,700

Samsung

EHS Mono

ASHP

Competitive pricing, good app integration.

Output
4–16 kW
SCOP
4.40
Installed
£8.5–11.8k
Warranty
5 years
After £7,500 grantfrom £1,000

NIBE

S2125

ASHP

Swedish-built, premium efficiency in cold weather.

Output
8–16 kW
SCOP
4.80
Installed
£11.0–14.5k
Warranty
6 years
After £7,500 grantfrom £3,500

Bosch

Compress 7400i AW

ASHP

Reliable, integrates well with existing Worcester systems.

Output
5–17 kW
SCOP
4.50
Installed
£9.0–13.2k
Warranty
7 years
After £7,500 grantfrom £1,500

NIBE

S1255 (GSHP)

GSHP

Ground source, requires boreholes or trenches.

Output
6–12 kW
SCOP
5.20
Installed
£18.0–30.0k
Warranty
6 years
After £7,500 grantfrom £10,500

Kensa

Shoebox NX

GSHP

UK-manufactured GSHP, popular for flats with shared ground array.

Output
3–6 kW
SCOP
5.00
Installed
£16.0–28.0k
Warranty
5 years
After £7,500 grantfrom £8,500

Grant

Aerona³ R32

ASHP

Irish-engineered, strong rural/off-grid installer presence in the UK.

Output
6–17 kW
SCOP
4.60
Installed
£9.0–12.8k
Warranty
7 years
After £7,500 grantfrom £1,500

Panasonic

Aquarea L Series

ASHP

R290 natural refrigerant, high flow temperatures suit older radiators.

Output
5–9 kW
SCOP
4.74
Installed
£8.8–12.5k
Warranty
5 years
After £7,500 grantfrom £1,300

Viessmann

Vitocal 250-A

ASHP

R290 monobloc reaching 70°C flow, so most existing radiators can stay.

Output
4–13 kW
SCOP
4.80
Installed
£9.5–13.8k
Warranty
5 years
After £7,500 grantfrom £2,000

LG

Therma V R290 Monobloc

ASHP

Keenly priced R290 unit with high flow temperatures; smaller UK installer base.

Output
5–16 kW
SCOP
4.60
Installed
£8.3–11.8k
Warranty
5 years
After £7,500 grantfrom £800

Octopus

Cosy 6

ASHP

UK-built R290 unit fitted only by Octopus; suits smaller, well-insulated homes.

Output
3–6 kW
SCOP
4.30
Installed
£7.5–10.5k
Warranty
5 years
After £7,500 grantfrom £0

Stiebel Eltron

WPL-A 07 Premium

ASHP

German-engineered inverter monobloc, among the quietest units sold in the UK.

Output
4–12 kW
SCOP
4.70
Installed
£10.0–14.5k
Warranty
5 years
After £7,500 grantfrom £2,500

Kensa

Evo (shared ground loop)

GSHP

Indoor GSHP designed for shared ground arrays in terraces and flats.

Output
4–12 kW
SCOP
4.90
Installed
£15.0–26.0k
Warranty
5 years
After £7,500 grantfrom £7,500

SCOP = Seasonal Coefficient of Performance. Higher = more efficient. A SCOP of 4.0 means 4 kWh of heat for every 1 kWh of electricity. Warranty figures are the standard manufacturer term — several brands extend cover when the system is registered or fitted by an accredited installer. Every model listed is MCS-certified, which is the requirement for grant funding. Sources: MCS product directory, manufacturer datasheets and the Nesta Heat Pump Cost Tracker (2024–25 UK installer quotes).

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