Assertion: heat pump's heat | /r/HasProperty | extracted
Facets:
value: from outdoor air
type: LOCATION
value: from it
type: OTHER
value: from the water
type: OTHER
value: from the soil
type: LOCATION
value: from a deep water
type: LOCATION
value: well
type: DEGREE
value: usually
type: DEGREE
Source sentences:
text: Usually heat is extracted from outdoor air and transferred to an indoor water tank, another variety extracts heat from indoor air to assist in cooling the space.
text: Heat is either extracted or added by the primary refrigerant loop, and the water is returned to a separate injection well, irrigation trench, tile field or body of water.
text: For home cooling, a heat pump reverses this process and heat is extracted from the indoor air and expelled to the outside, just like a refrigerator or air conditioner, thereby making the inside air cooler.
text: In a bit more detail, here's how it works: (1) Heat is extracted from a deep water well, passes up through valves (2) to a heat exchanger (3), before returning through the circuit to a cooler, higher part of the same well (4).
text: Whether you want the heat to be extracted from the soil (which requires digging up your garden for laying pipes underneath), from the ambient air (which requires little space but a fan will constantly emit a low amount of noise), or from a body of water (if you have such available close to your house).
text: From there, the heat is extracted from the water, and that water returns to the well or surface lake.
text: While standard electric water heaters have no moving parts, heat-pump water heaters have compressors (to compress the refrigerant vapor causing it to condense into liquid) and fans (to circulate room air across the heat exchanger so that heat can be extracted from it).
text: Air-water heat pumps are otherwise similar to air-air heat pumps, but they transfer the extracted heat into a water heating circuit, floor heating being the most efficient, and they can also transfer heat into a domestic hot water tank for use in showers and hot water taps of the building.