Glossary of terms used on this site
There are 67 entries in this glossary.All
| Term | Definition |
|---|---|
| Ground Loop |
A series of heat exchange pipes containing an antifreeze solution which are buried either vertically or horizontally in the earth. |
| Ground Source |
A heat pump which utilizes the earth as it's source of energy. |
| HAB |
Heating mode: heat absorption capacity from the ground or water - Cooling mode: heat absorption capacity from the inside air (total cooling load). |
| Heat Exchanger |
A component which transfers heat energy from one medium to another. For example heat could be transferred, in a geothermal heat pump system, from water-to-air or from water-to-water etc. and vice versa. |
| Heat sink |
The area or media where heat is deposited. (Inside a home, etc.) |
| Heat Source |
The area or media from which heat is removed. (water, air, etc.) |
| IGPM |
Water flow in Imperial Gallons. |
| KW OUT |
Heat pump capacity in KW's. |
| KWH - Kilowatt hours |
Electrical term - 1 Kwh equals the use of 1000 watts for one hour. |
| LAT |
Leaving air temperature. |
| Latent |
The load created by moisture in the air, including from outside air infiltration and that from indoor sources such as occupants, plants, cooking, showering, etc. |
| Liquid-to-Air Heat Pump |
A heat pump which absorbs heat from a liquid and distributes the energy in the form of hot forced air. |
| Liquid-to-Liquid heat pump |
A heat pump which absorbs heat from a liquid and distributes the energy in the form of hot water. |
| LLT |
Leaving liquid temperature. |
| LWT |
Leaving water temperature. |




