High-efficiency furnaces utilize absent air for combustion, owing to its heat exchangers are well-sealed in the unit. The air intake plays a role in combustion. Whether obstructed or extremely minor, the high-efficiency furnace becomes less so. Properly installing and maintaining the air intake, since, enables the furnace to function with maximum coercion efficiency
Vent Sizing
Every high-efficiency furnace has two ports for a hookup to thick-wall PVC piping. One slot serves the exhaust pipe, while another is for the air-intake cylinder. The thickness of both pipes should be the duplicate, per the manufactures specifications: typically, a thickness of four inches, although the thickness may vary.
Sloping pipes
Supporting the Vent
Supporting the weight of the vent is critical. Depending on the length of the pipe, an air intake may weigh between Twenty pounds and Fifty pounds. This avoids competing pressures within the heat exchanger and allows for extended the works combustion.Installing Screens
Using screens on the air intake Issue prevents critters from entering the furnace's heat exchanger. An Small animals may get trapped in the heat exchange, killing them when the furnace kicks on. You can prevent this by installing a screen on the inside of the exterior pipe. A screen also should be placed on the exhaust pipe.
The vent pipes should be pitched to the elsewhere. This enables pipes to bleed gone from the furnace (whether condensation forms inside the pipes). Again, pipes should be installed abutting to Everyone other so they are properly pressurized.
Installing supporting vents to the ceiling every four feet keeps the pipe from shifting or getting disconnected.
