SageBrush wrote:Does your heater have any TOU controls ?
No, wish it did. Hoping they will add a firmware update some day, but doubtful.
We have one of the latest Rheem 65 gallon units. For about $49 we added a WiFi module (EcoNet) that lets you adjust some of the settings that you can right on the water heater like on/off, temperature, mode (heat pump only, hybrid, electric resistance only, etc), vacation mode, etc.
Still, for our TOU plan, a heat pump water heater works nicely. It consumes most energy during our coldest 6 “winter” months when electricity is cheapest. During the 6 “summer” months, the heat pump would run a few hours max in the morning after showers before the high afternoon TOU rates kick in. Again, in the evening after showers the heat pump would run again, but at mostly partial peak or off peak rates and very efficiently as transferring heat from the hot summer garage air.