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Boilers by brand

In the UK the use of condensing boilers is now compulsory unless certain criteria for exemption can be identified by a qualified heating engineer. Condensing boilers are water heaters in which a high efficiency (typically greater than 90%) is achieved by using the waste heat in the flue gases to pre-heat the cold water entering the boiler. Fuelled by gas or oil, they're called condensing boilers because the water vapour produced during combustion is condensed into water, which leaves the system via a drain. To help you find the condensing boiler brand you're looking for, we've categorised them here by the manufacturer.

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Showing items 1-30 of 185

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Worcester Greenstar 4000 25 (ErP) Combi Boiler, Quick-List Pack

Starting at £1,156.56 £963.80

Worcester Greenstar 4000 25 (ErP) LPG Combi Boiler, Quick-List Pack

Starting at £1,255.98 £1,046.65

Worcester Greenstar 4000 30 (ErP) Combi Boiler, Quick-List Pack

Starting at £1,298.45 £1,082.04

Worcester Greenstar 4000 30 (ErP) LPG Combi Boiler, Quick-List Pack

Starting at £1,379.51 £1,149.59

Worcester Greenstar 4000 12 (ErP) System Boiler, Quick-List Pack

Starting at £1,144.92 £954.10

Worcester Greenstar 4000 15 (ErP) System Boiler, Quick-List Pack

Starting at £1,202.00 £1,001.67

Worcester Greenstar 4000 18 (ErP) System Boiler, Quick-List Pack

Starting at £1,259.10 £1,049.25

Worcester Greenstar 4000 21 (ErP) System Boiler, Quick-List Pack

Starting at £1,302.70 £1,085.58

Worcester Greenstar 4000 24 (ErP) System Boiler, Quick-List Pack

Starting at £1,345.25 £1,121.04

Showing items 1-30 of 185

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