Condensing boilers are the most energy-efficient boilers on the market today. They use less fuel and have lower running costs than other boilers. They achieve this high level of efficiency by extracting heat contained in the combustion gases, which would otherwise be lost to the atmosphere. Old, conventional boilers have an efficiency rate up to 60%, which means that they convert 60% or less of their fuel into heat, while the efficiency of new condensing boilers can be above 90% (A-rated). This means huge energy savings and significant cuts on your CO2 emissions and gas bills.
There are two types of high-efficiency condensing boiler:
System boiler: heats your hot water through a hot water cylinder
Combination (combi) boiler: gives you instant hot water without the need for a cylinder
Each type delivers all the benefits of high-efficiency technology.
Here are a few examples and guidelines to help you identify the type of condensing boiler most likely suited to your needs:
I live in a flat or bungalow with little or no roof space.
Most Suitable Boiler