Search results

Fair enough TC - I can't argue with that experience. Clearly the pipe just isn't getting that hot because the effect of the water overcomes the effect of the flames. Makes sense I guess given the much better heat conduction of water over air. I was just going from the BBQ industry where...

They still use theirs on the farm. And what's wrong with burning wood? It's a fully renewable resource and turns back into CO2 regardless of whether you burn it or let it rot on the ground. Much better than using gas or coal (electricity) if you don't have an air shed to worry about. And...

The outlaws on the farm installed a water jacket heater in the top and flue of their JOTUL slow combustion wood heater in the house. Then piped it via thermo siphon into the hot water heater. Except it gets too hot - even with 100s of litres of storage! If you keep a wood fire going in winter...

I was assuming you wanted hot water quicker than 4-5 hours, which is what a thermo siphon would take on a hot tub the size of your first photo. I also suggested mild steel because it's a lot cheaper and easier to weld than stainless.

Nice effort! Gal tube won't work. The heat of the fire would burn the galvanising off, creating a heap of noxious gases in the process (could you smell it? Maybe not if you kept running cold water through it and the fire wasn't directly on it) and then you're just left with some dodgy pipe...