Mark Cralen
New Member
I'm trying to install an open hydronic floor heating system to heat a 300 sq ft room in my basement using my existing hot water heater. I followed a plumbing schematic I found online, but it does not work. The pressure gauges in the system are maxed out at 75psi, so the pressure is higher than that. If the pressure reducing valve is on, I get no flow at all and the hot water pressure in my house is reduced. If I turn the pressure reducing valve to bypass, I can get flow of about 0.5 gpm, which is too low and under conditions that are not right for the system. The schematic is posted below.
Here are my questions:
1. Is there anything I can do to make this open system work better?
2. Should I give up on the open system and install a heat exchanger? I think this will allow me to drop the pressure in the heating system and maintain the pressure in my house.
3. Is there something else obvious to an expert that I am not seeing or forgetting to ask?
Thanks for any help you can give.
Mark
Here are my questions:
1. Is there anything I can do to make this open system work better?
2. Should I give up on the open system and install a heat exchanger? I think this will allow me to drop the pressure in the heating system and maintain the pressure in my house.
3. Is there something else obvious to an expert that I am not seeing or forgetting to ask?
Thanks for any help you can give.
Mark