Hello:

I have the typical New England colonial of 2 floors.
Heating is by a Hydrotherm (35 yr old) forced hot water system (gas)

Would like to ask:

What should the High and Low cycle for Temp limits be ?

What should the pressure gage read (feet and/or psi) when the water is at
the Low Limit ?
What should it be at the High Limit ?

Thanks,
Bob