Yet another one!
I'm a soapmaker in Sawbridgeworth, Herts. I've only recently ordered the book on rocket mass heaters and thought I would try to make a small one for a shed to make it into a spare room. Does anyone in the UK know what the insurance rules are about this. I am loathe to call them in fear of negative news as they probably never heard of this technology (they were worried that my making soap at home would burn it down and that took ages to rectify). Many thanks!