Home - News - Things You Want to Know about Heat Pump Water Heater

Things You Want to Know about Heat Pump Water Heater

Aug. 31, 2021

Most homeowners who have heat pumps use them to heat and cool their homes. But heat pumps can also be used to heat water - as a stand-alone water heating system or as a combination of a water heating and space conditioning system.


How they work?

Heat pump water heaters use electricity to transfer heat from one place to another, rather than producing it directly. As a result, they are two to three times more energy-efficient than conventional resistance water heaters. To transfer heat, a heat pump works in reverse like a refrigerator.


Whereas a fridge draws heat from the inside of the box and vents it into the surrounding room, a stand-alone air-source heat pump water heater draws heat from the surrounding air and vents it at a higher temperature into the tank to heat the water. You can purchase a stand-alone heat pump water heating system as an integrated unit with a built-in storage tank and a backup resistance heating element. You can also retrofit a heat pump to work with an existing conventional storage water heater.


The heat pump water heater needs to be installed in a location that maintains a year-round temperature range of 40º-90ºF (4.4º-32.2ºC) and provides a minimum of 1,000 cubic feet (28.3 cubic meters) of air space around the water heater. Cooler exhaust air can be vented indoors or outdoors. Install them in spaces with excessive heat, such as furnace rooms. Heat pump water heaters do not operate effectively in cold spaces. They tend to cool the space they are in.


 Heat Pump Water Heater

Choosing a heat pump water heater

Heat pump water heater systems usually have a higher initial cost than traditional storage water heaters. However, they have lower operating costs, which can offset their higher purchase and installation prices.


The following points also need to be considered before purchasing a heat pump water heating system.


Size and first hour rating

Fuel type and availability

Energy efficiency (energy factor)

Total cost of ownership



Installation and maintenance

Proper installation and maintenance of your heat pump water heating system will optimize its energy efficiency. Proper installation depends on a number of factors. These factors include fuel type, climate, local building code requirements, and safety issues. Therefore, it is best to have your heat pump installed by a qualified plumbing and heating contractor (or geothermal heat pump system installer/designer).


When selecting a qualified professional, do the following.


request a cost estimate in writing

request a reference

check with your local Better Business Bureau for the company

see if the company will obtain a local license if necessary and find out about local building codes

Regular maintenance of your water heater can significantly extend the life of your water heater and minimize efficiency losses. Read your owner's manual for specific maintenance advice.


Improving energy efficiency

After installing and maintaining your water heater correctly, try some additional energy-saving strategies to help reduce your water heating costs. Some energy-saving devices and systems are more cost-effective when installed in conjunction with a water heater.

Sunrain heat pump water heater is one of the most economical systems to heat water for family domestic use. Using free renewable energy from the air, the heat pump is highly efficient with low cost. It can save energy up to 80% compared with traditional gas boilers or electric water heaters. If you want to get more information about high-quality heat pump water heater wholesale, welcome to contact us.

Contact Us

Tel.: +86 757 2938 0616

E-mail: heatpump@sunrain.com

WhatsApp: ++86-13068710747

Add.: No. 73, Defu Rd., Xingtan Town, Foshan, Guangdong

News Letter

Copyright © Sunrain All Rights Reserved | Sitemap | Technical Support: