The brands UK installers actually fit.

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

Widely installed in the UK, strong MCS installer network.

Output

4–16 kW

SCOP

4.60

Installed

£8.8–12.5k

Warranty

5 years

Designed for UK climate, FTC7 controller, R290.

Output

4–14 kW

SCOP

4.70

Installed

£9.2–13.0k

Warranty

7 years

Competitive pricing, good app integration.

Output

4–16 kW

SCOP

4.40

Installed

£8.5–11.8k

Warranty

5 years

Swedish-built, premium efficiency in cold weather.

Output

8–16 kW

SCOP

4.80

Installed

£11.0–14.5k

Warranty

6 years

Reliable, integrates well with existing Worcester systems.

Output

5–17 kW

SCOP

4.50

Installed

£9.0–13.2k

Warranty

7 years

Ground source, requires boreholes or trenches.

Output

6–12 kW

SCOP

5.20

Installed

£18.0–30.0k

Warranty

6 years

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

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

R290 natural refrigerant, high flow temperatures suit older radiators.

Output

5–9 kW

SCOP

4.74

Installed

£8.8–12.5k

Warranty

5 years