3 ms·
I measured a groundsource heatpump to consume about 30-50 kWh per day in -20c for hot water and heating a 100m2 house. About 22c indoors in a 70s somewhat poorl
by serpix 4y ago
I measured a groundsource heatpump to consume about 30-50 kWh per day in -20c for hot water and heating a 100m2 house. About 22c indoors in a 70s somewhat poorly insulated 1-story brick/stone house. A good 1/3 of that energy goes to hot water.
In houses where hot water is heated with electricity the ratio might be even worse.
- 2000UltraDeluxe 4y agoAnother data point: Our fairly old house, heated with an air heat exchanger, use about 60 kWh per day during the winter months. The power draw for heating is reduced to almost nothing during the coldest period when the outside air is too cold and we use firewood. Apart from heating the house, we also use some power for hot water and pumping water from the well into the house.
- zrail 4y agoAnother data point: 180m2 house renovated in 2009, very well insulated, brand new 5.1 COP GSHP equipment we averaged 36 kWh per day for heat in January. We generate some hot water from that but our primary hot water is resistive electric.