Let's discuss... I've seen images of rusted, corroded gas valves due to air intake codensate dripping down. @lucasrampino11 posted this image with gas pipe corrosion, most likely again from air intake moisture. I don't really install furnaces so what's the argument against using room air as intake air instead of outside air?

Posted by HVAC Know It All at 2022-01-14 21:53:44 UTC