Head to head
Joule Cyclone 200L Indirect vs Vaillant aroTHERM plus 5kW
The Joule Cyclone 200L Indirect is a indirect unvented hot water cylinder, 200 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
| Joule Cyclone 200L Indirect | Vaillant aroTHERM plus 5kW | |
|---|---|---|
| Dimensions | 1490 mm high x 540 mm diameter | 965 x 1100 x 450 mm (H x W x D) |
| Weight | 47 kg | 128 kg (operating) |
| Capacity | 200 litres | - |
| Material | Duplex stainless steel | - |
| ErP rating | C | - |
| 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 |
Sources: Joule Cyclone 200L Indirect, Vaillant aroTHERM plus 5kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Cyclone 200L Indirect if...
A 200 litre indirect cylinder from Joule's Cyclone range, built in duplex stainless steel with a high recovery coil for use with a boiler or heat pump. It suits a three or four-bed house with a standard hot water demand.
Full Cyclone 200L Indirect 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 Joule Cyclone 200L Indirect and the Vaillant aroTHERM plus 5kW?
The Joule Cyclone 200L Indirect is a indirect unvented hot water cylinder, 200 litres; the Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kW heat output.
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