bcoke
Well-known member
Yesterday afternoon the CO alarms went off in the house [new home 4 years old and very well insulated] It is heated with in floor radient by a Gas Condensing Boiler which vents through the wall... I shut off boiler as that was the only combustion in the house [gas stove,gas fireplace were off] opened windows [it was at least 4 or 5 degrees out but at least positive]called Fire Department and asked for them to come out and test air to confirm source........Than I went outside to check the outside vent was clear and discovered that it [ the inner exhaust pipe] was hanging further out than before @ 6-8 inches. Upon inspection I pushed it back into it's fitting in the larger pipe......the inner one exhausts the burnt gas and the larger outer shell allows the combustion air to enter the boiler... when the FD showed they had their CO meter to check the house and the air was clear we started the burner and let it run they then checked the burner's immediate air around it,than basement all rooms ,bathrooms [for methane from traps] all good to go.........We do not know why the outer cap/inner flue pulled away ? snow fall from roof? animal? vibration? but all is ok will have the plumber who installed check it and my question is "should it be pvc cemented into the fitting so it is air tight to outdoors???????...............any comments or suggestions? . bobbycoke