Head to head
Baxi 800 Combi 2 36kW vs Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW
The Baxi 800 Combi 2 36kW is a gas combi boiler, 36 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
Specifications side by side
| Baxi 800 Combi 2 36kW | Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW | |
|---|---|---|
| Dimensions | 700 x 390 x 285 mm | 1020 x 1050 x 480 mm (H x W x D) |
| Weight | 29.5 kg | 98 kg |
| Hot water output | 36 kW | - |
| Central heating output | 26.4 kW | - |
| ErP class | A | - |
| Seasonal efficiency | 93% | - |
| Warranty | 10 years | - |
| Hot water flow rate | 15 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 |
| Max flow temperature | - | 55C (space heating) |
Sources: Baxi 800 Combi 2 36kW, 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 800 Combi 2 36kW if...
A gas combi boiler with 36 kW of hot water output, sized for a larger house with two bathrooms. It delivers about 15 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 10 years. Seasonal efficiency is 93%.
Full 800 Combi 2 36kW 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 800 Combi 2 36kW and the Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kW?
The Baxi 800 Combi 2 36kW is a gas combi boiler, 36 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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