The forced air heating supply directs from the central hub to all the rooms in which the system is designed to heat. All air systems consist of an air filter, blower, heat element and the controls.
http://visual.ly/forced-air-heating
2. http://visual.ly/forced-air-heating
Forced-air heating systems use air as its means of heat
transfer. The systems use ducts, vents and plenums to
distribute air, separate from the actual heating system.
The return plenum transports air from several large
vents to a central air handler for re-heating. Forced air
heating is as ideal solution for industrial and
commercial establishments.
The forced air heating supply directs from the central hub
to all the rooms in which the system is designed to
heat. All air systems consist of an air filter, blower, heat
element and the controls.