High Efficiency Oil and Gas Boilers

Oil/Gas Condensing Boilers

Condensing boilers get their name because they condense periodically. In other words, they extract heat from the exhaust gases that would otherwise escape through the flue - turning water vapour from the gas back into liquid water or condensate.

A condensing boiler captures much more usable heat from its fuel than a non-condensing boiler. Its high operating efficiency is made possible by the design of the condensing boiler's larger - or sometimes dual - heat exchanger.

The heat exchanger makes sure that as much heat as possible is transferred from the boiler's burner - and as little as possible lost in gases through the flue.

There are two types of condensing boiler: regular and combination. Regular condensing boilers heat your hot water through a hot water cylinder. Combination condensing boilers give you instant hot water without the need for a cylinder.

Please bear in mind that not all home heating systems will be compatible with a combination boiler. A qualified installer will tell you which type of condensing boiler, regular or combination is most suitable for your home.

Is your boiler energy efficient?

If it's 10-15 years old then it probably isn't. Replacing your old boiler with a new condensing boiler can save you around a third on your heating bills straight away.

Around 60% of CO₂ emissions from your home are down to your boiler. With an efficient new boiler you could save up to 875kg of CO2 and £170 a year. Add in a full set of heating controls as well as a new boiler, and you could increase the total savings to around £275 and 1.4 tonnes of CO₂ a year.

Save a third on your heating bills by replacing your boiler

Condensing boilers can be easily fitted to most new and old heating systems, ask your installer for more details.

Boilers are rated according to their efficiency in converting fuel to heat as a percentage. This rating is called SEDBUK - Seasonal Efficiency of Domestic Boilers in the UK.

SEDBUK ratings are from A to G, A-rated boilers being more than 90% efficient. Only A rated boilers, having efficiencies of over 90%, carry the Energy Saving Recommended logo.