Grant Aerona3 vs Mitsubishi Ecodan
A side-by-side look at the Grant Aerona3 and Mitsubishi Ecodan. Winning figures are highlighted.
| Grant UK Grant Aerona3 | Mitsubishi Electric Mitsubishi Ecodan | |
|---|---|---|
| Price from | n/a | n/a |
| Heat output | 6 kW | 8.5 kW |
| Efficiency (SCOP) | 3.7 | 3.9 |
| Max flow temp | 65 °C | 60 °C |
| Refrigerant | R32 | R290 |
| Noise | 48 dB | 45 dB |
| Min operating temp | -25 °C | -25 °C |
| Type | Monobloc | Monobloc |
| Warranty | 7 yrs | 7 yrs |
Best value per row highlighted. Prices last checked 15 October 2026.
Grant Aerona3
A dependable, fairly priced choice that UK installers know well. Efficiency trails the R290 leaders but it's a solid all-rounder backed by good support.
Full Grant Aerona3 reviewMitsubishi Ecodan
If you want the safe, widely-supported choice, the Ecodan is it. You'll never struggle to find an installer or parts. Slightly lower flow temperature than the Vaillant, so radiator sizing matters.
Full Mitsubishi Ecodan review