Many residential homes have a steam boiler for heating the home. These have been around doing their job for more than 200 years. The steam that omits from this type of boiler is hotter than what a hot water tank can heat up too. Heat will work its way through the piping and come out the furnace that is sitting in each room. If it stops working though do you know how to get boiler repairs London? How many pipes are running your system?Depending on how old your system is it could be either a two or one pipe system. This basically means how many pipes are controlling the flow in and out of the boiler. Years ago there would only be one pipe that would sent the steam to the radiator and then back to the system. It was really inconvenient though since one could never close the radiator in fear of causing damage. Now in days there are two pipes in place so things not only run smoother, but the radiator can be closed down if the room is not in use. This makes things easier for knowing how to do boiler repairs London. What is air valves for radiators?This is what controls how much steam will be let out into a room for heating it up if there is just one pipe. When figuring out how to repair boiler breakdown in London this is one thing a professional will look at. There has to be the proper balance between the boiler and the radiators or something could breakdown. If your system has two pipes then there will be vents at the boiler and one will not have to worry about backups near as often.