PowerGuide

Daikin Altherma 3 vs Vaillant aroTHERM Plus

A side-by-side look at the Daikin Altherma 3 and Vaillant aroTHERM Plus. Winning figures are highlighted.

Daikin
Daikin Altherma 3
Vaillant
Vaillant aroTHERM Plus
Price from
Heat output 8 kW 7 kW
Efficiency (SCOP) 3.8 4
Max flow temp 70 °C 65 °C
Refrigerant R32 R290
Noise 48 dB 46 dB
Min operating temp -25 °C -25 °C
Type Monobloc / Split Monobloc
Warranty 7 yrs 10 yrs

Daikin Altherma 3

Pick the Altherma 3 if your home needs high flow temperatures — it's happiest where others struggle. Slightly lower SCOP and uses R32 rather than a natural refrigerant.

Full Daikin Altherma 3 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 →

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