I am looking at building a new shop which I will heat with under slab radiant heating. My original plan was to bring in natural gas or use propane. However, as I am also looking to add solar panels to my house, I realized that adding them to the shop would be pretty easy. The roof will be sloped to the southwest and could take quite a few panels.
In considering this, the idea of using an electric water heater, instead of gas, was pretty natural. Has anyone done the same thing? Naturally, heating at night would be impossible using solar, so the grid would take over. I haven't even started looking at the costs/rewards yet, so it simply may not be worth doing.
Love to hear from others if it works or not.