Head to head
Vaillant aroTHERM plus 5kW vs Vaillant ecoTEC Pro 30kW combi
The Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kw heat output. The Vaillant ecoTEC Pro 30kW combi is a gas combi boiler, 30 kw hot water output.
Last reviewed 13 September 2026
Specifications side by side
| Vaillant aroTHERM plus 5kW | Vaillant ecoTEC Pro 30kW combi | |
|---|---|---|
| Dimensions | 965 x 1100 x 450 mm (H x W x D) | 720 x 440 x 335 mm |
| Weight | 128 kg (operating) | 39 kg |
| 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 | - |
| Max flow temperature | 75C | - |
| Hot water output | - | 30 kW |
| Central heating output | - | 25.7 kW |
| ErP class | - | A |
| Seasonal efficiency | - | 93% |
| Warranty | - | 2 years standard, 7 years with Vaillant Advance registration |
| Hot water flow rate | - | 12.3 litres per minute |
Sources: Vaillant aroTHERM plus 5kW, Vaillant ecoTEC Pro 30kW combi. Figures vary by model year and options, so check with the supplier before you commit.
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 →Buy or hire the ecoTEC Pro 30kW combi if...
A gas combi boiler with 30 kW of hot water output, sized for a three-bed house with one or two bathrooms. It delivers about 12.3 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 2 years standard, 7 years with Vaillant Advance registration. Seasonal efficiency is 93%.
Full ecoTEC Pro 30kW combi specifications →Common questions
What is the difference between the Vaillant aroTHERM plus 5kW and the Vaillant ecoTEC Pro 30kW combi?
The Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kW heat output; the Vaillant ecoTEC Pro 30kW combi is a gas combi boiler, 30 kW hot water output.
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