Boiler circulating pump question
My circulating pump runs only when the boiler is heating. I've read in other places that the circulating pump should run all the time.
Can I get some opinion on if it should run all the time or run only when the boiler is heating. The system is a single zone baseboard loop.
Could someone tell me the name of the tool used to open the purge valve at each baseboard radiator? Some use a flat screw driver and some look like a square that is recessed into the purge valve. Thanks for the input.
Last edited by timothy918; 12-03-2008 at 10:53 AM.
Reason: added word