>>2370869How would one go about making a more permanent one of these. I've been wanting to make an underground or semi underground sauna out of stone and a wood stove like pic related. I feel like this is down the same route though.
>how do you keep dirt from falling through frame?>how thick for walls?>does the op picture use fire or do you just keep switching out hot rocks?>what temps are you getting up to with this method?Any guide or recommended books would be much appreciated anon. There isn't much info I have been able to find on sauna design.