A central heating system may take up considerable space in a home or other building, and may require supply and return ductwork to be installed at the time of construction.Ĭentral heating differs from space heating in that the heat generation occurs in one place, such as a furnace room or basement in a house or a mechanical room in a large building (though not necessarily at the geometrically "central" point). Where a system includes ducts for air circulation, central air conditioning can be added to the system. Automatic fuel (and sometimes ash) handling provides improved convenience over separate fireplaces. Large homes or buildings may be divided into individually controllable zones with their own temperature controls. Primary energy sources may be fuels like coal or wood, oil, kerosene, natural gas, or electricity.Ĭompared with systems such as fireplaces and wood stoves, a central heating plant offers improved uniformity of temperature control over a building, usually including automatic control of the furnace. The heat is circulated through the building either by fans forcing heated air through ducts, circulation of low-pressure steam to radiators in each heated room, or pumps that circulate hot water through room radiators. It is a component of heating, ventilation, and air conditioning (short: HVAC) systems, which can both cool and warm interior spaces.Ī central heating system has a furnace that converts fuel or electricity to heat. Hot water central heating unit, using wood as fuelĪ central heating system provides warmth to a number of spaces within a building from one main source of heat.
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