Head to head
Heatrae Sadia Multipoint 50 vs Vaillant aroTHERM plus 5kW
The Heatrae Sadia Multipoint 50 is a electric unvented water heater, 50 litres. The Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Heatrae Sadia Multipoint 50 | Vaillant aroTHERM plus 5kW | |
|---|---|---|
| Dimensions | 1007 x 997 x 350 (V) / 371 x 371 x 350 (H) mm | 965 x 1100 x 450 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 | - | 5 kW |
| SCOP | - | up to 5.03 |
| Refrigerant | - | R290 (propane), low GWP |
| Sound power | - | 53 dB(A) at A7/W35, 58 dB(A) at A7/W55 |
| Weight | - | 128 kg (operating) |
| Max flow temperature | - | 75C |
Sources: Heatrae Sadia Multipoint 50, Vaillant aroTHERM plus 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 aroTHERM plus 5kW if...
The smallest aroTHERM plus, sized for a well-insulated flat or small house. It uses the natural refrigerant R290 rather than an F-gas, and reaches a 75C flow temperature, which helps it work with existing radiators on a retrofit job.
Full aroTHERM plus 5kW specifications →Common questions
What is the difference between the Heatrae Sadia Multipoint 50 and the Vaillant aroTHERM plus 5kW?
The Heatrae Sadia Multipoint 50 is a electric unvented water heater, 50 litres; the Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kW heat output.
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