Best Heat Pumps 2026: Top-Rated Models Ranked by Real Data
10 data-driven rankings · updated 29 October 2026
Based on published manufacturer specifications, the best-rated air source heat pump overall is the LG Therma V R290 Monobloc 12kW, scoring 25.2/30 across efficiency, noise and price; the most efficient is the Kronoterm ADAPTMAX (SCOP 5.82 at 35°C flow); the quietest is the Viessmann Vitocal 200-A (35 dB(A) sound power); and the top R290 (propane) model is the Rhoss MidiFLOW-PI THHITP 140. For ground source, the Kronoterm ETERA-L-3F (400V) leads on SCOP.
Every ranking below is generated automatically from the specifications in the Heat Pump Database, compared at matching test conditions wherever possible. Each section shows the top 3 — follow the link for the full top 10.
Best Overall Air Source Heat PumpsScoringEach qualifying air source heat pump is scored 0–10 on three measures - SCOP at 35°C flow, published sound power level, and price per kW of peak heating capacity - scaled between the best and worst product in the qualifying pool, with lower noise and lower price per kW scoring higher. The three 0–10 scores are added for a total out of 30. Unlike the single-metric rankings elsewhere on this site, a blended score like this can place a product highly even if it doesn’t lead on any one measure, and a product with the single highest SCOP can be overtaken by one that’s merely good across all three. Limited to residential-sized (under 20kW) air source heat pumps with a published SCOP at W35, sound power level and price all available.
Top 10 of 299 qualifying ASHPs · updated 2026-10-29
A single blended ranking across efficiency, noise and price, rather than one metric at a time like the rankings below.
| # | Model | Capacity | SCOP (W35) | Noise | £/kW | Score |
|---|---|---|---|---|---|---|
| 1 |  LG Therma V R290 Monobloc 12kW | 12 kW | 5.45 (9.3/10) | 49 dB(A) (7.6/10) | £310 (8.4/10) | 25.2 |
| 2 | LG Therma V R290 Monobloc 14kW | 14 kW | 5.38 (8.9/10) | 51 dB(A) (7.0/10) | £288 (8.6/10) | 24.5 |
| 3 |  Baxi HP60 High Monobloc, 4kW | 4.4–6.86 kW | 5.34 (8.7/10) | 48 dB(A) (7.8/10) | £446 (7.4/10) | 23.9 |
| 4 | Baxi HP60 High Monobloc, 8kW | 8.5–11.05 kW | 5.2 (7.9/10) | 49 dB(A) (7.6/10) | £317 (8.3/10) | 23.8 |
| 5 |  Acond Grandis-R | 8.8 kW | 5.58 (10.0/10) | 47.7 dB(A) (7.9/10) | £688 (5.5/10) | 23.4 |
| 6 | LG Therma V R290 Monobloc 9kW | 9 kW | 5.23 (8.0/10) | 49 dB(A) (7.6/10) | £391 (7.8/10) | 23.4 |
| 7 | Baxi HP60 High Monobloc, 6kW | 6.26–7.7 kW | 5.22 (8.0/10) | 48 dB(A) (7.8/10) | £426 (7.5/10) | 23.3 |
| 8 | LG Therma V R290 Monobloc 16kW | 16 kW | 5.11 (7.4/10) | 52 dB(A) (6.8/10) | £267 (8.7/10) | 22.9 |
| 9 | LG THERMA V Hydrosplit | 9 kW | 5.2 (7.9/10) | 50 dB(A) (7.3/10) | £422 (7.5/10) | 22.7 |
| 10 |  CTC EcoAir C100 C116 (230V) | 17.97 kW | 5.15 (7.6/10) | 52 dB(A) (6.8/10) | £316 (8.4/10) | 22.7 |
Best Air Source Heat Pumps by SCOP
Top 3 of 2096 qualifying products · updated 2026-10-29
Ranked by SCOP (seasonal coefficient of performance) at a 35°C flow temperature — the fairest single measure of real-world heating efficiency. Only products with a published SCOP at W35 are included.
| # | Model | Capacity | SCOP (W35) | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 |  Kronoterm ADAPTMAX | 35.4 kW | 5.82 | R290 | 49 dB(A) |
| 2 | Kronoterm ADAPTMAX | 70.4 kW | 5.81 | R290 | 52 dB(A) |
| 3 | Kronoterm ADAPTMAX | 106.1 kW | 5.8 | R290 | 54 dB(A) |
Quietest Air Source Heat Pumps
Top 3 of 1761 qualifying products · updated 2026-10-29
Ranked by published sound power level (dB(A)) — lowest first. Limited to units up to 25 kW with a declared sound power figure, the measure used for UK permitted-development noise assessments (MCS 020).
| # | Model | Capacity | Sound power dB(A) | Refrigerant |
|---|---|---|---|---|
| 1 |  Viessmann Vitocal 200-A | 3.2–5.7 kW | 35 | R410A |
| 2 | Viessmann Vitocal 222-A | 2.4–4.2 kW | 35 | R410A |
| 3 | Kronoterm VERSI-I 1F | 6.5 kW | 36 | R452B |
Best R290 (Propane) Heat Pumps
Top 3 of 767 qualifying products · updated 2026-10-29
R290 (propane) is a natural refrigerant with a GWP of just 3, and typically enables higher flow temperatures. These are the most efficient R290 heat pumps in the database, ranked by SCOP.
| # | Model | Capacity | SCOP | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 |  Rhoss MidiFLOW-PI THHITP 140 | 44.7 kW | 7.32 | R290 | |
| 2 | Rhoss MidiFLOW-PI THHITP 125 | 30.1 kW | 7.17 | R290 | |
| 3 | Rhoss MidiFLOW-PI THHITP 145 | 51.2 kW | 7.13 | R290 |
Best Small Heat Pumps (3–6 kW)
Top 3 of 223 qualifying products · updated 2026-10-29
Small-capacity heat pumps (3–6 kW) suit well-insulated flats and smaller homes. Ranked by SCOP — seasonal efficiency at 35°C flow.
| # | Model | Capacity | SCOP | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 | Acond Grandis-N | 3.54 kW | 5.38 | R290 | 46.1 dB(A) |
| 2 |  Nibe S2125 | 4.72 kW | 5.33 | R290 | 49 dB(A) |
| 3 |  SolarEast BLN Series | 6 kW | 5.31 | R290 | 49 dB(A) |
Best Medium Heat Pumps (7–12 kW)
Top 3 of 565 qualifying products · updated 2026-10-29
The 7–12 kW band covers most three- and four-bedroom UK homes. Ranked by SCOP — seasonal efficiency at 35°C flow.
| # | Model | Capacity | SCOP | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 | Acond Grandis-R | 8.8 kW | 5.58 | R290 | 47.7 dB(A) |
| 2 |  Trianco Activair Pro AI R290 (High Temp) | 2–9.75 kW | 5.56 | R290 | 51 dB(A) |
| 3 | LG Therma V R290 Monobloc 12kW | 12 kW | 5.45 | R290 | 49 dB(A) |
Best Large Heat Pumps (13–25 kW)
Top 3 of 590 qualifying products · updated 2026-10-29
Large-capacity units (13–25 kW) suit big or older homes and light commercial use. Ranked by SCOP — seasonal efficiency at 35°C flow.
| # | Model | Capacity | SCOP | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 |  Hoval Belaria pro | 11.8–24 kW | 5.7 | R290 | 58 dB(A) |
| 2 | Hoval Belaria pro | 10.6–19.2 kW | 5.6 | R290 | 61 dB(A) |
| 3 |  M-Tec AHPA722 | 7–22 kW | 5.6 | R290 | 53 dB(A) |
Best Ground Source Heat Pumps
Top 3 of 194 qualifying products · updated 2026-10-29
Ground source (brine-to-water) heat pumps up to 25 kW — the domestic and light-commercial range — ranked by SCOP at a 35°C flow temperature. Only products with a published SCOP at W35 are included, so every unit is compared on the same basis.
| # | Model | Capacity | SCOP (W35) | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 | Kronoterm ETERA-L-3F (400V) | 9.1–18.2 kW | 6.22 | R452B | 35 dB(A) |
| 2 | M-Tec DHPA618 | 5–18 kW | 6.2 | ||
| 3 |  Heliotherm Direct Evaporation Ground Source (Basic Comfort) | 20.1 kW | 6.2 | 43 dB(A) |
Best Water Source Heat Pumps
Top 3 of 189 qualifying products · updated 2026-10-29
Water-to-water heat pumps up to 100 kW — domestic through to light commercial — ranked by SCOP at a 35°C flow temperature. Large chiller-based plant is excluded so like is compared with like. Only products with a published SCOP at W35 are included.
| # | Model | Capacity | SCOP (W35) | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 |  Ochsner AQUA FOX 416 HPLA S1 | 18.11 kW | 7.78 | R452B | 38 dB(A) |
| 2 | Ochsner AQUA FOX 312 HPLA S1 | 14.24 kW | 7.51 | R452B | 36 dB(A) |
| 3 | M-Tec WPS-W1052-AK | 13–70 kW | 7.35 | R410A |
Best Air Source Heat Pumps by COP
Top 3 of 2336 qualifying products · updated 2026-10-29
Ranked by COP at the standard EN 14511 rating point A7/W35 (7°C outdoor air, 35°C leaving water). COP is a single-point snapshot, so read it alongside SCOP — but it is the most widely published efficiency figure. Only products with a COP quoted at A7/W35 are included.
| # | Model | Capacity | COP (A7/W35) | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 | Lailey and Coates Monobloc Inverter Heat Pump (R290 EVI) | 3.43–12.95 kW | 7.69 | R290 | |
| 2 | Lailey and Coates Monobloc Inverter Heat Pump (R290 EVI) | 1.68–6.15 kW | 7.65 | R290 | |
| 3 | Lailey and Coates Monobloc Inverter Heat Pump (R290 EVI) | 4.55–17.25 kW | 7.57 | R290 |
How we rank heat pumps
These are independent, data-driven rankings, not reviews or opinions.
- Every figure comes from manufacturer datasheets and published technical documentation, and is checked by a person before it goes live.
- Products are compared at matching test conditions — for example SCOP at a 35°C flow temperature, COP at A7/W35 and sound power (not sound pressure) for noise.
- Near-identical variants (such as single- and three-phase versions with the same result) are shown once, so one range can’t fill a list.
- Rankings are calculated from the published data alone and update automatically as new products are added (last updated 29 October 2026).
See the COP vs SCOP guide for how to read the efficiency figures.
Frequently asked questions
What is the best heat pump in 2026?
On published data, the LG Therma V R290 Monobloc 12kW is the best-rated air source heat pump overall, with a blended score of 25.2/30 across SCOP, noise and price per kW. The right choice still depends on the size of your home and heat loss, so check the capacity-band rankings below for the best small, medium and large models.
What is the best heat pump for a typical UK home?
Most three- and four-bedroom UK homes need 7–12 kW. In that band the Acond Grandis-R has the highest SCOP (5.58). Get a heat loss calculation first so the unit is sized correctly — our size calculator gives a quick estimate.
Which brand makes the best heat pumps?
No single brand leads every category. Counting appearances across all our top-10 lists, the brands that appear most often are M-Tec (14), Rhoss (13), Kronoterm (8) and LG (6). Compare individual models rather than brands — efficiency varies a lot within a range.
What is a good SCOP for a heat pump?
SCOP measures seasonal efficiency. For a home air source heat pump at a 35°C flow temperature, around 4.7 or above is good, and the very best published figures reach 5.82. Always compare SCOP at the same flow temperature — see COP vs SCOP explained.
What is the quietest heat pump?
Of the air source heat pumps up to 25 kW with a declared sound power level, the Viessmann Vitocal 200-A is the quietest at 35 dB(A). Sound power is the figure used for UK permitted-development noise checks (MCS 020) — try the noise calculator.
Are R290 heat pumps better?
R290 (propane) has a global warming potential of 3, compared with 675 for R32, and typically allows higher flow temperatures, which helps with existing radiators. The highest-ranked R290 model on SCOP is the Rhoss MidiFLOW-PI THHITP 140 — see the full R290 ranking.