The definition of a central heating system is a system of heating in which the heat is generated in one central location and distributed throughout the building. This type of system is typically used in residential and commercial buildings and can be powered by electricity, natural gas, or oil. Central heating systems are designed to provide a consistent and comfortable temperature throughout the entire building, no matter the size or layout. The central heating system consists of a boiler, which is the main source of heat, and a series of pipes and radiators that distribute the heat throughout the building. The boiler is connected to a thermostat, which is used to regulate the temperature of the building. The thermostat is connected to the boiler and is programmed to turn the boiler on and off at predetermined times to maintain the desired temperature. Central heating systems are an efficient and cost-effective way to heat a building, and they can be used in both new and existing buildings.