Where do people typically keep the pressure set on their radiant heating systems? I'm still getting the hang of adjusting the pressure reducing valve and am wondering what I should be dialing it in for.
It depends on the type of boiler you have. I suggest you have someone inspect your system and tell you what pressure it should be at. My Triangle Tube runs at around 17lbs for example. Most radiant systems should be around 10-20lbs I believe.