High Efficiency Furnace Exhaust

Of high efficiency furnaces homeowners are often surprised when their fairly new high efficiency furnace shuts down unexpectedly in the middle of winter.

High efficiency furnace exhaust. My question is this. Hello guys below the bow window is the exhaust from a high efficiency furnace penetrating the basement wall to the outside via pvc. Hadlari s high efficiency furnace iced up his exhaust during a recent cold snap because it emits steam with very little smoke. It is a hot surface ignition system that uses an electronically controlled resistance heating element similar to a light bulb filament.

Cbc north s mark hadlari inspects his chimney exhaust on his roof. Fyi the exhaust is the closer of the two pipes. The two main types of gas furnaces in the home are the conventional furnace and the newer high efficiency condensing furnace the technologies used in these furnaces directly impact the difference in their energy efficiency as represented by their afue annual fuel utilization efficiency ratings. You see the combustion gases that are vented outside by a conventional furnace still contain a certain amount of heat.

This window is not fixed it can be opened. Basic instructions on how to run pvc flue venting on high efficiency furnaces. The hot surface of the heating element ignites the gas burner. When exhaust gases discharged from a high efficiency furnace exhaust vent meets the cold air the air condenses faster than conventional furnaces because it is cooler.

A high efficiency furnace uses a different type of venting system because it extracts the heat that remains in those combustion gases before venting the resultant mixture of water and carbon dioxide. This condensing process along with the one that occurs within the high efficiency furnace itself creates moisture that can collect and freeze around and inside exhaust pipes since it can t travel far enough away from the. Furnace exhaust holding water duration. A high efficiency condensing furnace on the other hand makes further use out of those gases before they leave your home.

In many cases the problem is due to ice build up in the vent pipe blocking the exhaust flow. Other aspects of high efficiency furnace venting electronic ignition. In high efficiency models the lower temperature of the. Hammerle homes 39 158 views.

A high efficiency condensing furnace has an electronic ignition mechanism. A high efficiency condensing furnace extracts that extra heat with a second heat exchanger. Isn t this an improper installation.