I think it would be better, rather than having extraction fans in rooms (fitted to the end of the tubing), to put the furnace in its own small room, and positively charge the air in that room - so you are forcing the air in with just one fan. It would be quieter, too.
I’ve always been curious how these systems don’t “overheat” the water. I’m looking at a similar system for hot water but haven’t figured out how to prevent the water from being too hot without “changing” the fire. Perhaps I am overthinking it. But it still makes me curious.
Well it's very important to have a over pressure valve on the water tank that you heating with the fire. My father say he can remember it going off once in the years we used the system. Now we did not build the system the man that built the house before we got it was a machines and he built it. But yes it's possible if you do not use any hot water like a day and run a very hot fire that the tank will get very hot if it gets hot enough you need the overpressure values to blow. Please do this at your own risk we did not build it and i'm not telling anyone how to build it. We have run it for about 15 years without a problem. The other thing to remember is the tank your heating is radiating heat out into the room that its in before the water renters the fire. So it's always cooling and if you have a family full of kids then you will use enough hot water even washing hands to keep enough cold water entering the system.
@@AllMyHobbies My system doesn't have any "safety" pressure release valves because it doesn't need one. If it is an open vent system like all hot water systems used to be then there is no need for a relief valve.
