Posted by jtown on January 05, 2000 at 22:03:08:
In Reply to: Boiler in Off Mode posted by Ted on January 04, 2000 at 08:48:28:
I agree with HK. You are not clear, you hear it at warm up and then say it happens at cool down. If you can hear it at both it is probably just what HK says, vs traps popping open or something else on one side of cycle. Everything is louder at night because the background noise is gone.