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Posted by boconnell on March 01, 2005 at 20:53:00:
In Reply to: Re: boiler banging? posted by HeatPro on March 01, 2005 at 19:17:41:
thank you - the munchkin has an internal temp gauge - i have seen it happen at low and high temps, and it has happened with all zones callign and just one. is there any chance this could be an exhaust problem? could the exhaust have a bad pitch (it runs about 30 feet) and it is collecting condensate and blocking the exhaust causing some back pressure/exhaust? thank you.