For energy transport, the heat capacity of air is about 3 400 times greater than that of water.
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An individual air-conditioning system normally employs either a single, self-contained, packaged room air conditioner (installed in a window or through a wall) or separate indoor and outdoor units to serve an individual room.
If the ultimate chemical analysis is known, approximate heat values can be determined for all of the coals.
For the low or net heat of combustion, it is assumed that all products of combustion remain in the gaseous state.
The amount of heat generated by complete combustion is a constant for any given combination of combustible elements and compounds and is not affected by the manner in which the combustion takes place, provided it is complete.