Head to head
Joule Cyclone 200L Indirect vs Worcester Bosch Greenstar 2000 25kW combi
The Joule Cyclone 200L Indirect is a indirect unvented hot water cylinder, 200 litres. The Worcester Bosch Greenstar 2000 25kW combi is a gas combi boiler, 25 kw hot water output.
Last reviewed 13 September 2026
Specifications side by side
| Joule Cyclone 200L Indirect | Worcester Bosch Greenstar 2000 25kW combi | |
|---|---|---|
| Dimensions | 1490 mm high x 540 mm diameter | 724 x 400 x 300 mm |
| Weight | 47 kg | 32.1 kg |
| Capacity | 200 litres | - |
| Material | Duplex stainless steel | - |
| ErP rating | C | - |
| Hot water output | - | 25 kW |
| Central heating output | - | 3-24 kW |
| ErP class | - | A |
| Seasonal efficiency | - | 94% |
| Warranty | - | 7 years when installed with Greenstar System Filter |
| Hot water flow rate | - | 10 litres per minute at 35 C rise |
Sources: Joule Cyclone 200L Indirect, Worcester Bosch Greenstar 2000 25kW combi. 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 Greenstar 2000 25kW combi if...
A gas combi boiler with 25 kW of hot water output, sized for a flat or small house with one bathroom. It delivers about 10 litres per minute at 35 C rise of hot water, which decides how well a shower runs while a tap is on. Warranty: 7 years when installed with Greenstar System Filter. Seasonal efficiency is 94%.
Full Greenstar 2000 25kW combi specifications →Common questions
What is the difference between the Joule Cyclone 200L Indirect and the Worcester Bosch Greenstar 2000 25kW combi?
The Joule Cyclone 200L Indirect is a indirect unvented hot water cylinder, 200 litres; the Worcester Bosch Greenstar 2000 25kW combi is a gas combi boiler, 25 kW hot water output.
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