Head to head
Heatrae Sadia Multipoint 50 vs Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW
The Heatrae Sadia Multipoint 50 is a electric unvented water heater, 50 litres. The Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW is a r32 monobloc air source heat pump, 8.5 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Heatrae Sadia Multipoint 50 | Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW | |
|---|---|---|
| Dimensions | 1007 x 997 x 350 (V) / 371 x 371 x 350 (H) mm | 1020 x 1050 x 480 mm (H x W x D) |
| Capacity | 50 litres | - |
| Power | 3 kW, 230V | - |
| Heat-up time | approx. 58 minutes | - |
| Recovery time | approx. 41 minutes | - |
| Max operating pressure | 10 bar | - |
| Warranty | 2 years full warranty, 10 years on the inner cylinder | - |
| Heat output | - | 8.5 kW at A-7/W35 |
| ErP rating | - | 145% (MCS certified) |
| Refrigerant | - | R32, 2.2 kg charge |
| Sound power | - | 58 dBA |
| Sound pressure at 1m | - | 45 dBA |
| Weight | - | 98 kg |
| Max flow temperature | - | 55C (space heating) |
Sources: Heatrae Sadia Multipoint 50, Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Multipoint 50 if...
A 50 litre electric unvented water heater from Heatrae Sadia's Multipoint range, for a property with no boiler-fed hot water such as an outbuilding or small flat. It runs from a 3kW element and carries a 10 year warranty on the inner cylinder.
Full Multipoint 50 specifications →Buy or hire the Ecodan PUZ-WM85VAA 8.5kW if...
An 8.5kW R32 monobloc heat pump, the middle unit in the Ecodan PUZ-WM line and a common size for a three-bed house. It runs on a single-phase 220-240V supply, weighs 98 kg and reaches a 55C flow temperature for radiator systems.
Full Ecodan PUZ-WM85VAA 8.5kW specifications →Common questions
What is the difference between the Heatrae Sadia Multipoint 50 and the Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW?
The Heatrae Sadia Multipoint 50 is a electric unvented water heater, 50 litres; the Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW is a r32 monobloc air source heat pump, 8.5 kW heat output.
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