High Efficiency Gas Furnace Exhaust Temperature

Other aspects of high efficiency furnace venting.

High efficiency gas furnace exhaust temperature.

In contrast modern high efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials such as pvc cpvc or abs for their exhaust vents some high efficiency furnaces also include a plastic pipe for intake area and all types. The pvc pipes are used for air intake exhaust gas and to remove the corrosive condensation resulting from the combustion process. Vent pipe blocking the exhaust flow. This high efficiency venting system must be installed when you install the new furnace.

Mid efficiency furnaces have an afue annual fuel utilization efficiency of 80 and high efficiency furnaces have an afue of 90 98. There are several other important aspects of high efficiency furnace venting. Whether the furnace is a standard a conventional furnace 50 70 mid efficiency 70 80 or a high efficiency furnace the provision for combustion air and flue gas vent systems is very important.