I have an Hb smith boiler and a Biasi add on Woodboiler, with 3 zones,
1 for my bradford white hotwater storage tank,
1 for the basement, and
1 for the main floor and there are 3 flo control valves one for each zone.
My question is this; If I have the wood boiler going and the power goes out I will have a overheating problem in the wood boiler causing the pressure release valve to open and you got it, water all over that place.
I was told that I can install whats called a zone valve that has power going to it at all times and if the power goes out the valve opens allowing the water to bypass the flo control valve and circulating the water to one of the zones by gravity.
What type of zone valve do I need and how do I install it. I hope soneone can help me here. I do know how to sweat pipes.
Thanks a million