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.

High efficiency furnace combustion air intake.

However condensing furnaces can also be installed as single pipe non direct vent configurations in which the combustion air is drawn from the indoors. The main difference between a conventional furnace and a condensing furnace is the heat exchanger technology used to extract heat from the combustion process and exhaust the combustion gases. 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. Other aspects of high efficiency furnace venting there are several other important aspects of high efficiency furnace venting.

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. The combustion air intake usually is piped from the exterior of the home to the furnace. Unlike conventional furnaces a condensing furnace often uses a sealed combustion chamber and direct vent combustion air. This high efficiency venting system must be installed when you install the new furnace.

Due to high efficiency furnaces having their own fresh air intake no air is drawn from inside your home. According to the u s. This means the furnace does not take air already heated by the furnace and use it for combustion.