Best Heat Pumps UK 2026.
Every major air-source heat pump sold in the UK, ranked by efficiency (SCOP), warranty, and typical installed price after the £7,500 BUS Grant is applied.
How we compare
The four numbers that actually matter for a UK heat pump:
- SCOP — Seasonal Coefficient of Performance. Higher = more efficient. 4.0+ is very good, 4.3+ is excellent.
- Warranty — 7 years is standard; 10 years is excellent.
- Noise (dB) — should be under 45dB at 1m to avoid planning issues.
- Refrigerant — R290 (propane) has low GWP; R32 is common but higher GWP.
The ranked list
| Brand | SCOP | Warranty | Price (after BUS) |
|---|---|---|---|
| Daikin Altherma 3 | 4.3 | 7 years | £4,500 – £6,500 |
| Mitsubishi Ecodan | 4.2 | 7 years | £4,000 – £6,000 |
| Vaillant aroTHERM plus | 4.1 | 7 years | £4,200 – £6,500 |
| NIBE F2120 / S2125 | 4.4 | 10 years | £5,000 – £7,500 |
| Samsung ClimateHub | 4.1 | 10 years | £3,500 – £5,500 |
| Grant Aerona 3 | 4.0 | 7 years | £3,500 – £5,000 |
| Panasonic Aquarea | 4.2 | 5 years | £4,000 – £6,000 |
Daikin Altherma 3
SCOP 4.3 · 7 years warranty · £4,500 – £6,500 installed after BUS Grant
Class-leading efficiency; quiet (35-38 dB).
→ Browse Daikin Altherma 3accessories & filters on Amazon UK
Mitsubishi Ecodan
SCOP 4.2 · 7 years warranty · £4,000 – £6,000 installed after BUS Grant
Widely installed; excellent UK service network.
→ Browse Mitsubishi Ecodanaccessories & filters on Amazon UK
Vaillant aroTHERM plus
SCOP 4.1 · 7 years warranty · £4,200 – £6,500 installed after BUS Grant
Uses R290 refrigerant (low GWP); strong UK support.
→ Browse Vaillant aroTHERM plusaccessories & filters on Amazon UK
NIBE F2120 / S2125
SCOP 4.4 · 10 years warranty · £5,000 – £7,500 installed after BUS Grant
Swedish engineering; best-in-class cold weather performance.
→ Browse NIBE F2120 / S2125accessories & filters on Amazon UK
Samsung ClimateHub
SCOP 4.1 · 10 years warranty · £3,500 – £5,500 installed after BUS Grant
Integrated cylinder; competitive pricing, long warranty.
→ Browse Samsung ClimateHubaccessories & filters on Amazon UK
Grant Aerona 3
SCOP 4.0 · 7 years warranty · £3,500 – £5,000 installed after BUS Grant
Irish-designed; strong on budget installs.
Panasonic Aquarea
SCOP 4.2 · 5 years warranty · £4,000 – £6,000 installed after BUS Grant
R290 option; reliable but service network thinner.
→ Browse Panasonic Aquareaaccessories & filters on Amazon UK
Smart thermostats to pair
A good heat pump wants a proper heating control. Most modern heat pumps include basic controls, but pairing with a zone-capable smart thermostat unlocks 5-15% efficiency gains. Top picks:
- Tado Smart Thermostat V3+ — Amazon UK
- Hive Active Heating 2 — Amazon UK
- Google Nest Learning Thermostat — Amazon UK
- Shelly TRV (zoned control) — Amazon UK
Our verdict
For most UK homes, Mitsubishi Ecodan or Daikin Altherma 3offer the best balance of efficiency, warranty support and installer familiarity. If you're in northern Scotland or have an old/leaky home, NIBE's cold-weather performance edges ahead.
Samsung has quietly become the value pick — 10-year warranty at mid-tier prices, and the integrated cylinder saves airing-cupboard space.
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