Head to head
Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW vs Telford Tempest 300 Indirect
The Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW is a r32 monobloc air source heat pump, 8.5 kw heat output. The Telford Tempest 300 Indirect is a indirect unvented hot water cylinder, 300 litres.
Last reviewed 13 September 2026
Specifications side by side
| Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW | Telford Tempest 300 Indirect | |
|---|---|---|
| Dimensions | 1020 x 1050 x 480 mm (H x W x D) | 1750 mm high x 580 mm diameter |
| Weight | 98 kg | 61 kg |
| 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 | - |
| Max flow temperature | 55C (space heating) | - |
| Capacity | - | 300 litres |
| Material | - | 2304 duplex stainless steel |
| Relief valve setting | - | 7 bar / 90C |
| Immersion heater | - | 3kW, 240V single phase, included |
| Warranty | - | Lifetime guarantee on the body with annual service, 2 year component guarantee |
Sources: Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW, Telford Tempest 300 Indirect. Figures vary by model year and options, so check with the supplier before you commit.
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 →Buy or hire the Tempest 300 Indirect if...
A 300 litre indirect cylinder for a larger household or a property with high simultaneous hot water demand, part of Telford's Tempest range. Like the smaller direct model it carries a lifetime body guarantee when serviced annually.
Full Tempest 300 Indirect specifications →Common questions
What is the difference between the Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW and the Telford Tempest 300 Indirect?
The Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kW is a r32 monobloc air source heat pump, 8.5 kW heat output; the Telford Tempest 300 Indirect is a indirect unvented hot water cylinder, 300 litres.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.