One of these coils has a gentle kink in it.These two coils were removed from a copper cylinder. In my humble opinion they could be used as heat exchangers for outdoor hot tubs with wood fire heating circulating water through the coils into a rustic hottub for fun or they could be buffed up until they shine and used as lamp stands etc etc as the green oxide comes off with a bit of vinegar and brings out the lovely copper colour. The fittings are one inch male regular plumbing fittings so you could connect up some heat proof pipework and run water through them to whatever you were trying to heat up. Or polished up they look cool .Just ideas..just thinking out loud!
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