I have a heat pump with integrated water heater. It is a ground source heat pump, so requires an array of pipes burried in the garden. Most energy-efficient way to heat. As you have already solar, that would be a great option (as would any other type of heat pump).I keep seeing the term, but will admit I have no idea WTF a heat pump even is, maybe have to deploy google.
Mote than likely would never save enough on power to justify the cost, my heater doesn’t run all that much, and my electricity is cheap as hell as long as the suns out. Made almost a megawatt in the last 30 days.
An electric water heater is probably worth looking into as well for me, laundry, dishes, showers, that’s a lot of water that needs to be heated up. Wouldn’t mind ditching the giant tank in the garage and getting some more cabinet space either.