High Efficiency Gas Furnace Combustion Air Intake

Due to high efficiency furnaces having their own fresh air intake no air is drawn from inside your home.

High efficiency gas furnace combustion air intake.

Since high efficiency furnaces draw air directly from outside the furnace itself does not require a fresh air intake in order to replace inside air. Other aspects of high efficiency furnace venting there are several other important aspects of high efficiency furnace venting. Fortunately you are correct that your new high efficiency furnace should have an integral combustion air intake duct that supplies air directly to the combustion chamber. According to the u s.

The pvc pipes are used for air intake exhaust gas and to remove the corrosive condensation resulting from the combustion process. However condensing furnaces can also be installed as single pipe non direct vent configurations in which the combustion air is drawn from the indoors. These types of furnaces have a dedicated pipeline that runs directly from an outside vent into a sealed combustion chamber of the furnace and a sealed vent to the outside of the home for venting the toxic fumes from the combustion process. This will provide free airflow to the combustion chamber.

This high efficiency venting system must be installed when you install the new furnace. Department of energy a defining feature of high efficiency furnaces is sealed combustion a process by which outdoor makeup air is piped directly into the burner. An obstructed air intake vent pipe in a direct vent two pipe system will cause serious combustion problems in a condensing furnace.