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What is inside all of the small tubes. Is it steam, water, or does the larger surface area conduct greater heat from whatever is burning to the water.
Hi ChrisGreat job on the boiler What type of propane torch do you useCheersRich
Hi ChrisThats interesting Sievert torches are not cheap. Julian and I both have the cheaper versions from Machine Mart which are ok but perhaps not giving us the high heat needed when doing bigger boiler jobsI don't want to side track your build too much so if anyone has some technical spec on torches perhaps they would be able to open a topicCheersRich