How Do Heat Pump Water Heaters Work Quizlet

That means that a hpwh cools the space where it is located.

How do heat pump water heaters work quizlet. How it works heat pump water heaters hpwhs it s generally easier to move something than to make something. Using an air source heat pump heat pump water heaters hpwhs extract heat out of the air where they are located to heat the water. While a refrigerator removes heat from an enclosed box and expels that heat to the surrounding air a hpwh takes the heat from surrounding air and transfers it to water. To move the heat heat pumps work like a refrigerator in reverse.

Therefore they can be two to three times more energy efficient than conventional electric resistance water heaters. A heat pump uses electricity to drive the compressor and the fan instead unlike a traditional electric resistance water heater that uses electricity to directly heat the water. So air to water heat pump water heaters are potentially a big energy saver particularly when the main heat source in a home is an air source heat pump as the water heater can in effect borrow the efficiency of that heat pump which on average is about 3 times more efficient than most other heat sources. That s a good thing in the summer it doubles as air conditioning but in the winter it s not so helpful.

Heat pump water heaters use electricity to move heat from one place to another instead of generating heat directly. To understand the concept of heat pumps imagine a refrigerator working in reverse. Putting that principle to use hpwhs use electricity to move heat from one place to another instead of generating heat directly. Heat pump refrigeration cycle.

Water heaters are generally the biggest energy drain in a home after heating. A refrigerant on the other side of the evaporator is at a cooler temperature than the heat source and heat is transferred from the source into the refrigerant causing the refrigerant to evaporate.