an increase in the amount of heat contained in a space, resulting from direct solar radiation as well as heat given off by people, lights, equipment, machinery and other sources.

THE ENTRY OF OUTSIDE HEAT INTO A HOUSE THROUGH THE WALLS, WINDOWS, DOORS AND ROOF. THE HEAT ENTERS BY MEANS OF RADIATION, CONVECTION AND CONDUCTION.

In Athena microprocessor-based temperature controllers, a reference Gain value that is expressed in terms of the controllerÕs Span, divided by the heating proportional band, in degrees.

Solar radiant heat, transmitted or emitted by glazing into a building, contributing to the build-up of heat.

Heat coming into a home from sources other than its heating/cooling system. Most gains come from the sun.

Heat added to the conditioned space by infiltration, solar radiation, occupant respiration and lighting.

The amount of heat gained by a space from all sources, internal and external, including persons, lights, machines, sunshine and so forth.

The amount of heat introduced to a space from all heat producing sources, such as building occupants, lights, appliances, and from the environment, mainly solar energy.

the heat a building or room gains causing possible discomfort, this can be from many sources including solar gain (heat radiated from the sun), conduction gain, (heat transmitted to a space due to the difference between the inside and outside temperatures), lights, people, machines, fresh air etc.

The transfer of heat from outside to inside. Both heat loss and heat gain are measured in terms of the fuel consumption required to maintain a comfortable indoor temperature.

The amount of heat gained, measured in BTU's, from a space to be conditioned, at the local summer outdoor design temperature and a specified indoor design condition.

The gross amount of heat that is introduced into a space, whether from incoming radiation or from internal sources such as occupants, lights, and equipment.

An increase in the amount of heat contained in a space, resulting from direct solar radiation, heat flow through walls, windows, and other building surfaces and the heat given off by people, lights, equipment and other sources.

The increase in the amount of heat contained in a home as a result of solar load, infiltration, of warm air,and the heat transmitted through the walls, ceiling, floors,doors, and windows when it is warmer outside the home than inside.

The transfer of heat from outside to inside by means of conduction, convection, and radiation through all surfaces of a house.

The amount of heat gained by a space from all sources, including people, lights, machines, sunshine, etc.