Posted by Greg Oien on February 15, 2000 at 23:18:35:
I have a Hydrotherm #R-210B LP hot water boiler and have been given conflicting information from two different repairmen. The first recommended that the pressure guage be kept at 40psi and the second 20psi.
I have been unable to find any technical ifo on this 22 year old boiler. Thanks