PowerGuide

Mitsubishi Ecodan vs Vaillant aroTHERM Plus

A side-by-side look at the Mitsubishi Ecodan and Vaillant aroTHERM Plus. Winning figures are highlighted.

Mitsubishi Electric
Mitsubishi Ecodan
Vaillant
Vaillant aroTHERM Plus
Price from
Heat output 8.5 kW 7 kW
Efficiency (SCOP) 3.9 4
Max flow temp 60 °C 65 °C
Refrigerant R290 R290
Noise 45 dB 46 dB
Min operating temp -25 °C -25 °C
Type Monobloc Monobloc
Warranty 7 yrs 10 yrs

Mitsubishi 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 →

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 →

Get free installation quotes

Compare vetted installers near you. No obligation, takes 30 seconds.