Adominique
New Member
Hello from Oil City Pa. I have a small dilemma. I have purchased a Rheem RCBH199DVLN natural gas tankless hot water heater. I am wanting to plumb it in-line with my out door wood boiler to my air handler. I am wondering if I need an expansion tank? I do not know my house PSI as it is a natural spring direct feed into the house but I’m sure it’s not that high as we don’t have the greatest pressure to our faucets or shower. Please see drawing
