Blocked Attic Furnace Flue

One is blocked with debris.

Blocked attic furnace flue.

To work properly a furnace needs adequate airflow. The issue is the flue itself gets nice and warm which means there is effectively a heater going in the attic when the furnace is active. A blocked flue can cause deadly carbon monoxide back up into the home and is the primary reason for shutting down the system when this occurs. The flue on your furnace is designed to vent carbon monoxide and other gases made during the combustion process outside.

Furthermore if you have this problem or see it on your furnace heating system please consult a professional. How to insulate a metal flue pipe. Safety first flue condensation problems. How to clean a blocked furnace pvc vent pipe by elizabeth knoll high efficiency furnaces use two pvc pipes for venting one is a combustion air intake and the other is the combustion air exhaust.

There are 2 air registers on the exterior of the house on the wall opposite the furnace room. Every vented heating appliance in your home should be inspected and cleaned regularly to prevent carbon monoxide poisoning. If your furnace is having problems with starting or seems to be trying to start but doesn t. Where the vent passes through insulation in an attic the insulation shield must be terminate at least 2 inches above the insulation and.

If the flue is clogged or damaged it can t do its job and this puts you and your family at risk. These issues have been observed on all kinds of furnaces including gas and oil furnaces. If not repaired eventually the corrosive condensation dripping down the flue will cause a flue or ventilation failure. These pipes typically vent out the side of your home and not into a chimney like older furnaces.

If you don t have a crawl space or a basement then it can be a challenge to place a furnace on the ground floor of the structure. Furnace shut off immediately when the exhaust vent was completely blocked either at the vent outlet midway between the furnace and the vent outlet or at the inducer fan outlet. The co concentrations in the chamber and the air free flue gas concentrations were. You might not receive the same air movement benefits if the unit is in a garage either.

The flue is the metal tubing that extends up from the top of your gas furnace or water heater that carries the carbon monoxide gas from the heating unit to your. A furnace in the attic is a design that works for all homes. How to check a furnace for a blocked intake. A blocked utility flue serving a gas water heater furnace or boiler can mean serious problems.