TBP -
Thanks again. That's sure to be useful info. I haven't forgotten your earlier plug for Pumping Away; I'll order it myself if it doesn't show up in my stocking. In meantime, my heating pro is reasonable and seems to know his stuff (he knows of Mr. Holohan, at least), so I'll have him in...
TBP, chicopee and GenB, and anyone else:
Thanks a lot for your advice thus far. I have had the expansion tank replaced as it was, indeed, shot. (TBP, although there was no isolation valve for the old exp. tank, there is one now for the new tank, so I'll be able to switch it out myself in the...
TBP, chicopee and GenB:
Thanks much. Since I am already scheduled to spend considerable time in the basement this evening on other matters, I will follow up on your suggestions.
TBP --
Thanks for a very informative post. You may be right about the expansion tank; I'm getting only water out of the air vent.
I don't believe the boiler has a hot water coil in it for the simple reason that this same boiler and a separate hot water heater came with the house.
If you don't...
Here in the northeastern US, I performed some routine annual maintainance on my domestic natural gas furnace/boiler by removing and cleaning out the burners and testing the pressure release valve. Water came out of the valve -- so far, so good. But then it wouldn't STOP coming out because crud...
