When considering a heat pump water heater, check out this video by The Build Show in collaboration with the Environmental Protection Agency (EPA) is a great overview, including how they function, what options are available, etc.
How do heat pump water heaters work?
Rather than generating heat from the combustion of gas, as traditional water heaters do, electrical heat pump water heaters pull air and compress it, thus heating the air which in turn, heats the water stored in the tank. For a more detailed explanation on how HPWHs work, and to see an example of one in action, check out this video.
How much more efficient are heat pump hot water heaters?
Heat pump water heaters are generally at least twice as efficient as traditional water heaters (many have been noted to be 3-4x more efficient!). Their efficiency can be optimized by proper installation, good placement, and regular maintenance. If you already have a HPWH, your Energy Navigator can help you understand if it is being operated most efficiently for your needs!
How much do heat pump water heaters cost?
On average, heat pump water heaters cost between $1,500 to $3,000, not including installation expenses. To learn more about the costs of installing a heat pump water heater, read this article. It is important to note that the upfront costs may be more than a traditional water heater but operational and energy costs should be substantially less over the lifetime of the appliance.
How much can a heat pump water heater save me in energy costs?
For a family of four, a heat pump water heater can save up to $200-500 in annual energy costs, and $5,600 over the heat pump’s lifetime.
What are the non-energy related benefits?
In addition to the reduced energy costs, heat pump water heaters are safer and cleaner than alternatives. They don’t generate heat, and can’t have dangerous gas leaks or toxic emissions. Some models can serve as a dehumidifier, which can be a great help in basements!
Do I have enough space?
Most heat pump hot water heaters are taller than conventional hot water heaters and require at least 450 cubic feet of space to work most efficiently. If you want to install your heat pump water heater in a small space, work with your contractor to discuss ducting and noise mitigation.
How much maintenance do heat pump water heaters require?
Regular maintenance is important for a heat pump water heater’s efficiency and lifespan. Every month, give your heat pump a visual inspection to look for leaks, rust or other signs of wear. Heat pump water heaters come with an air filter at the point where air enters the compressor. It’s important to check the filter and clean it with a dry toothbrush or give it a quick rinse and dry to get rid of the debris every month or so. It’s important to flush your heat pump water heater annually (like a traditional water heater), and clean the condensate lines. Read a more detailed explanation about heat pump water heater maintenance here.
Can I install it myself?
Installing your heat pump water heater can save you hundreds of dollars, but you will most likely need a permit from your town, as well as specific materials. If you are interested in understanding the process for a DIY heat pump water heater, you can find a comprehensive guide here. You can also visit these resources to read more about other people’s experiences installing a heat pump water heater – including this Bloomberg article and Reddit thread.
Sources referenced:
