I’m just finishing a summerhouse build at the bottom of the garden. I was hoping to get an LPG boiler to feed a couple of rads down there to make it usable in the winter. I wanted to build a wooden hot tub in front of it, I was wondering whether I could use the hot water side of the boiler to provide the heat for the hot tub. I have no need for hot water in the summer house so was thinking that I could use a pump of some type to take water from the hot tub to the boiler and then from the boiler back to the hot tub. I have a pump from an old whirl pool spa that ‘may’ be able to be used. Any suggestions, ideas?
Hi steve182 In principle you should be ok but because the water in the hot tub will contain chlorine or similar sanitizer you will have to incorporate a heat exchanger somewhere in the circuit. Regards S
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