As with all things, old age tends to take over. The boiler in your home is no different, especially if it has not had good maintenance and servicing. The result is a hike in the cost of running it compared to todays examples. The cost could in the region of 300 per annum. So if you use a boiler and radiators to heat your home, it will take roughly 2/3rds of you whole energy spending for the fuel to run it. So if you are going to change your boiler, then you will need to consider a few points that are important, for example, what type or how big etc. There are many domestic boiler on the market, so you need chose the right one for your requirements. Dont forget the boiler has needs, like maybe extra pipework or cylinders. Check the energy efficiency results for different models. A Lambeth Plumber can fit boilers. Servicing and and maintenance is also a consideration. Here are a couple of examples: The Conventional Domestic Boiler works by the use of a heat exchanger at the heart of its system. It supplies its hot water in a very similar way ot the old type of kettle that sat on the cooker. Most of these boilers will work with fully pumped and open vented systems, and some also work with existing gravity hot water systems. The Combination Boiler is also known as the Combi boiler and doubles as a central heating boiler and a multi point on demand water heater. It delivers hot water from a cold water mains supply straight to taps all around the home. Any new boiler installation must be done by a corgi-registered professionals like Lambeth Plumbers. The Condensing Boiler is designed to use the returning water from a heating circuit to cool down the boilers flue gases. It is regarded as a high efficiency appliance and works better with water at low temperatures. This type of boiler design will work with all manner of fuel types like, gas, liquid petroleum gas or oil. There is also a combi-condensing boiler.