Re: Expansion tank quick-fill knob - open or closed?
Ugh, it's never good to hear that a system wasn't installed properly.
The date stamp on the expansion tank suggests it's a little more than 6 years old (stamp says 11113701 - i'm guessing 11/01 as the date). At the least, it's been here since 2004 when we moved in.
I'm doing another furnace run this morning. I'll list psi and water temp over a 90 min period.
water temp: 70 (or lowest setting)
water temp: 110
water temp: 125
I'll update until 8am.
Last edited by jhgoldstj; 02-06-2008 at 08:04 AM.