Solar hot water
I've seen a few solar hot water kits that will let you use your existing hot water heater, but not any of the evacuated tube type. My 80 gal electric is only two years old, so I'd rather not change it out. I've also read that the evacuated tube type tend to be more efficient than the plate-type. Anyone know of a kit that is a tube type and will use my existing hot water heater?
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