Home Electrification (Part 5): Selecting a High Efficiency, Heat Pump Water Heater

Author: Wei-Tai Kwok, Past President, Sustainable Lafayette (weitai[at]sustainablelafayette.org)

Article published November 26, 2020. Sanden unit installed in Summer 2019.


In my effort to decarbonize our home and convert all appliances from gas to electric, I was lucky our 15-year old natural gas water heater was approaching the end of its 15-20 year life. Most homeowners like me don’t think about replacing our water heaters until a mini crisis arises, when the unit rusts-out and starts leaking or simply stops working. That “emergency” type of timing makes it hard to research a thoughtful upgrade. Therefore, if your water heater is already more than 10 years old, consider proactively replacing it with an energy-efficient, all-electric version.