How an Unvented Cylinder and Central Heating Work 

An explanation of how a typical central heating and hot water system works in an average UK home. Covering both combi and system (heat only) boilers, as well as gas and wood pellet boilers. Heat pumps not specifically covered, but they have a lot of similarities with the systems I describe.
#diy
#plumber
#plumbing
#centralheating
#boiler
#hotwater
#heating