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Ok so I think I have a better understanding but yet still confused. 1st off I have a 6ft basement 9ft main floor and it is baseboard heat so 1ft for upstairs. So 16ft. So 7psi + 3 psi= 10psi. This should be my cold temp psi then? I have an expansion tank but no bleeders on the radiators...

so do I need to decrease my psi to be 15? or should it be 15 psi when not operating? Currently it is at 25psi when at peak operation and it is having a hard time keeping up but it is very cold here in mn right now. Also I do hear water moving in the radiators and I did not hear that before the...

Check that not 180 degrees it is reaching only 170 F degrees. On this side it says max water temp 250 F degrees. Should it be reaching closer to that as well? I guess I am confused on how the maxes should relate to what you actually operate it at? Also if I had more psi for the water will...

What should my water psi be for my boiler when not operating and then when it is operating? On the side of the boiler it says MAWP 50psi. The reason I ask is that I had a leaky water valve that I tightened up and it stopped leaking but this caused my psi to drop drastically. I added water so...