Please read as this unit works but has an issue! Unit still works on electric mode only. In July 2023 I had this unit installed as a new hybrid electric heater with a heat pump to make it eligible for the tax credit. After 4 months the heat pump portion failed and I had to replace under warranty. It took 5 months for the replacement unit to come in, which I just installed. Over the last 5 months I’ve continued to use the water heater without any problems on electric heater mode (not the hybrid mode). The only limitation is the temperature won’t adjust from 120 degrees. There’s no reason to think this won’t continue to function for many years as a regular electric water heater. My family of 4 (2 teenagers) have been using in this manner since November. This unit was purchased from Edelman Plumbing, so in theory it should be a better quality than what you get from the big-box stores. I’m only selling to try to recover some of the install costs for the replacement unit, which were not covered by warranty.