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Baxi 600 Combi 2 30kW vs Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW

The Baxi 600 Combi 2 30kW is a gas combi boiler, 30.9 kw hot water output. The Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW is a r32 monobloc air source heat pump, 6.0 kw heat output.

Last reviewed 13 September 2026

Baxi 600 Combi 2 30kW
Baxi 600 Combi 2 30kW - image: Baxi
Ecodan PUZ-WM60VAA 6.0kW
Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW

Specifications side by side

Baxi 600 Combi 2 30kWMitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW
Dimensions700 x 395 x 297 mm1020 x 1050 x 480 mm (H x W x D)
Hot water output30.9 kW-
Central heating output21.2 kW-
ErP classA-
Seasonal efficiency93%-
Warranty7 years-
Hot water flow rate12.2 litres per minute-
Heat output-6.0 kW at -7C outdoor / 35C flow
SCOP-3.20 (35C flow), 3.30 (55C flow)
Refrigerant-R32
Sound power-60 dBA
Sound pressure at 1m-45 dBA
Weight-98 kg
Max flow temperature-55C (space heating)

Sources: Baxi 600 Combi 2 30kW, Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the 600 Combi 2 30kW if...

A gas combi boiler with 30.9 kW of hot water output, sized for a three-bed house with one or two bathrooms. It delivers about 12.2 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 7 years. Seasonal efficiency is 93%.

Full 600 Combi 2 30kW specifications →

Buy or hire the Ecodan PUZ-WM60VAA 6.0kW if...

A 6.0kW R32 monobloc heat pump sized for a well-insulated flat or small house. It is quoted at SCOP 3.20 at a 35C flow temperature, and Mitsubishi Electric's accredited installer scheme extends cover on the unit. It weighs 98 kg and stands 1020mm tall.

Full Ecodan PUZ-WM60VAA 6.0kW specifications →

Common questions

What is the difference between the Baxi 600 Combi 2 30kW and the Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW?

The Baxi 600 Combi 2 30kW is a gas combi boiler, 30.9 kW hot water output; the Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW is a r32 monobloc air source heat pump, 6.0 kW heat output.

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