It appears that every month energy prices are going up resulting in higher heating bills. If you use gas central heating your boiler is a large user gas and large proportion of your energy bill. You could trim your gas bills by up to 35% if you install a new energy-saving condensing combi boiler.
Your present-day gas boiler has to work hard providing hot water to your taps and heating water for your central heating. A combi boiler does not last for ever and that the average life-time will be fifteen years. Even though your present-day central heating boiler may be operating correctly it could be inefficient in comparison to the modern one.
You need to deliberate whether it is cost-efficient to continue with your older heating boiler as it reaches the end of its lifetime rather than swapping to a new replacement boiler and savoring the increased energy efficiency. This can trim your fuel costs down considerably. A gas combi-boiler is the most widely known type of boiler, and is good for small homes with few people, or people who don’t want to wait for their hot water. As a gas combi-boiler heats the water on need it does not need a storage tank in the airing cupboard. Having instantaneous hot water is an advantage but, depending upon the the power rating of your central heating boiler, you may feel that the gas boiler is not able to supply several hot taps at the same time.
A average boiler will use a hot water tank to store hot water it makes during the daytime. This is the most wasteful method and the heat losses are great even with a fully lagged cylinder. The tank also requires storage space although large amounts of hot water are available for several showers in a short space of time.
You can get efficiencies of up to 60 % by installing a combi boiler and getting rid of the hot water storage cylinder. Another variant of the gas combi-boiler is the combi condensing boiler which is able to extract waste heat from the flue gases and use this to heat water when called for. Using the reclaimed heat to create hot water leads to additional gas savings.