Grant Aerona3 vs Vaillant aroTHERM Plus
A side-by-side look at the Grant Aerona3 and Vaillant aroTHERM Plus. Winning figures are highlighted.
| Grant UK Grant Aerona3 | Vaillant Vaillant aroTHERM Plus | |
|---|---|---|
| Price from | — | — |
| Heat output | 6 kW | 7 kW |
| Efficiency (SCOP) | 3.7 | 4 |
| Max flow temp | 65 °C | 65 °C |
| Refrigerant | R32 | R290 |
| Noise | 48 dB | 46 dB |
| Min operating temp | -25 °C | -25 °C |
| Type | Monobloc | Monobloc |
| Warranty | 7 yrs | 10 yrs |
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 review →Vaillant aroTHERM Plus
Our top pick for most homes. The R290 refrigerant hits high flow temperatures without wrecking efficiency, so it works in older properties that haven't had radiators upsized. Long warranty seals it.
Full Vaillant aroTHERM Plus review →