High Efficiency Furnace Combustion Air Intake

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.

High efficiency furnace combustion air intake.

A high efficiency condensing furnace is a little more complex than a conventional furnace and troubleshooting is somewhat more complicated since there are more potential problems. 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. This high efficiency venting system must be installed when you install the new furnace. However condensing furnaces can also be installed as single pipe non direct vent configurations in which the combustion air is drawn from the indoors.

Other aspects of high efficiency furnace venting there are several other important aspects of high efficiency furnace venting. 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. 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.

This means the furnace does not take air already heated by the furnace and use it for combustion. 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. The combustion air intake usually is piped from the exterior of the home to the furnace.