ieg, thank you for the interesting climatology discussion about Ireland.
Bradfordwhite, I guess this is a less expensive alternative to installing a heat recovery coil on your air conditioner. Before John found the tempering valve for my cold water line, I was going to use a 20 gallon electric I found at Lowes to temper cold water for rinse fills; don't ask how, but I put hose threads on it like you did.