Definitions
| Waterfurnace - The Waterfurnace Geothermal Heating/Cooling system. |
| Burn - using a gas term to indecate geothermal compressor operation. |
| Degree Day - the number of degrees in a day is defined as the difference between a reference value of 65°F (18°C) and the average outside temperature for that day. |
| Fan ON - The system uses the fan to move air from one zone to another as well as supplying warm/cool air. When Fan time on exceeds Burn time the system is saving energy use moving air within the house to where it is requested without firing up geothermal unit. |
| Aux Water Heater - When the Geothermal system is not able to meet Domestic Hot Water needs, the propane heater is utilized. Highest demand occurs when no heat/cooling are required. |