![]() ![]() You have an old boiler, located behind a wall and fire front, that is inefficient and should be replaced. Back boilers provide hot water and sometimes heat radiators. I have a back boiler and was told Its really inefficient? Upgrading to a condensing boiler can save as much as 30% on your heating and hot-water bills. Modern high-efficiency boilers can be 90% efficient. This simply means that the boiler will extract more energy from the fuel and turn it into useable heat. Old standard-efficiency boilers can waste over a third of the energy they produce. Recent changes in the law mean all new gas boilers fitted in the UK should be high-efficiency condensing models. The system provides central heating and hot water by using both a storage cylinder and water tank, which gives ultra-efficient operation. System boilers need a cylinder to store hot water, but system components are built into the boiler itself, therefore no need for a tank in the loft.Īn open vent boiler is so called because it is linked to an outside vent. It doesn't't need a water storage tank or a cylinder because the boiler's connected directly to the water mains, heating water as its needed. What does this mean?Ī Combi boiler heats water as you draw it from the tap. I was told my radiators need bleeding? What does this mean? How do I find out what my water pressure is? An engineer has told me my expansion vessel has lost pressure? ![]() I have a back boiler and was told It's really inefficient? ![]()
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