Heater
A heater is a device that is made to heat an area. It can do this through different forms of heat.
- Electric heater: heat a small room through means of electricity. They can have air forced over a set of wires or an infrared element that will heat objects in the room.
- Oil-filled convection heaters: heat rooms through convection. The inside is filled with oil that is heated by a heating element. This heat then escapes the heater and heats objects in the room.
- Gas heater: heat a room by burning some form of natural gas, propane, or kerosene.
Heater Media
Diagram showing main components of an HVAC system
Rooftop HVAC unit with view of fresh-air intake vent
Ventilation duct with outlet diffuser vent. These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space.
The control circuit in a household HVAC installation. The wires connecting to the blue terminal block on the upper-right of the board lead to the thermostat. The fan enclosure is directly behind the board, and the filters can be seen at the top. The safety interlock switch is at the bottom left. In the lower middle is the capacitor.
- Panna
HVAC ventilation exhaust for a 12-story building
An axial belt-drive exhaust fan serving an underground car park. This exhaust fan's operation is interlocked with the concentration of contaminants emitted by internal combustion engines.
Ventilation on the downdraught system, by impulsion, or the 'plenum' principle, applied to schoolrooms (1899)
Alpha Black Edition - Sirair Air conditioner with UVC (Ultraviolet Germicidal Irradiation)
A simple stylized diagram of the refrigeration cycle: 1) condensing coil, 2) expansion valve, 3) evaporating coil, 4) compressor
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