Domestic boiler heating systems are graded according to energy performance.
By replacing your boiler you can reduce your energy bills substantially each year and improve your Carbon Footprint - Find out more. Boiler EPC's
Condensing gas energy-efficient boiler
Boiler and central heating performance contributes to the overall energy performance of your property and is included in any Energy Performance Report (EPC).
Boiler Efficiency Ratings
Boiler efficiency performance is measured as a percentage although the European Grading method (A-G according to energy usage performance) is also often included for consistency.
installed via the free boiler scheme are A rated high-efficiency condensing boilers.
Combination gas boilers, more commonly known as Combi Boilers are the most popular type of domestic gas boiler heating system in the UK.
The term "Combi boiler" is short for combination, which is used because of the way the domestic gas boiler / water heating system is designed.
More on getting a free or replacement combi boiler
Combi boilers are one type of condensing gas boiler. Condensing boilers are widely accepted to be the most energy-efficient. They use less energy to heat your water and your home which means huge annual savings and also reduces harmful Carbon emissions.