Originally Posted by redline
Need a photo of where the 1/2 copper water lines comes into the boiler.
I believe I may have solved this! Where the cold water comes into the boiler unit, I noticed a "backflow preventer" unit which has a small lever on the top of the unit which, when flipped, sounded as though it began allowing *more* water to flow into the unit. Almost immediately (within 10 mins, I noticed the PSI levels begin to increase).
As you can see by the gauge picture below, my new PSI is now in the 25 range -- and after bleeding the rads upstairs, are running incredibly warm, resulting in a very happy owner, and even happier girlfriend.
My question is now, running at 25PSI, am I risking damage to the unit? Or is 25 perfectly normal for a two story dwelling?