What is a high efficiency boiler?
A high efficiency boiler is the most efficient boiler available. It converts more than 88% of the fuel it uses into heat, compared to 72% for conventional types. High efficiency boilers have either a larger or second heat exchanger which saves the heat which would normally escape up the Flue in normal boilers. This reduces the temperature of the Flue gases to a point where water vapour produced during combustion is ‘condensed out’. High efficiency boilers are established products and can be fitted to most new and old heating systems. They are easy to install and can be bought for oil and gas-fuelled homes, even LPG (liquefied petroleum gas). These boilers are often no larger than conventional boilers. You can buy high efficiency boilers as either combination boilers, which heat up hot water on demand, or conventional system boilers, where a separate hot water cylinder is required.
