Boilers By Brand

To help find the condensing boiler manufacturer you are looking for, we have categorised them by manufacturer here.

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. They may be fuelled by gas or oil and are called condensing boilers because the water vapour produced during combustion is condensed into water, which leaves the system via a drain. In the UK their use is now compulsory, unless certain criteria can be identified by a qualified heating engineer.