Furnace Pvc Exhaust Pipe

There are 3 plastic types of pipes certified by the american gas association for use in high efficiency condensing category 4 furnaces.

Furnace pvc exhaust pipe.

This high efficiency venting system must be installed when you install the new furnace. My contractor wants to buy new stuff because mine is cellular core and he says solid core is better. If the vent pipes are not protected by screens you take a big risk for furnace problems due to pipe obstruction or infestations from pests. This piping system incorporates two pipes of different sizes in one unit.

3 rodent pvc vent screen for horizontal pipe vented furnaces hot water heaters and boilers pvs rs3. Basic instructions on how to run pvc flue venting on high efficiency furnaces. In other words this product is designed for 3 pvc for the inlet pipe and 2 pvc for the exhaust. I have a question about using pvc pipe for gas furnace exhaust.

The exhaust vent from most class iv units is a 2 exhaust thus the end of the fitting is designed for a 2 exhaust pipe thus a 2 5 bell for a 2 pvc. You ll need to reduce from 3 to 2 on the exhaust line. Plastic vent pipe types listed below have been certified by the american gas association for use in furnaces classified as category 4. Duravent 5gvvth aluminum.

When the vent is withdrawing air from the house it expels the gas outside through the vent. The outer pipe draws air for combustion from outside and the smaller pipe occupies the inner position and is used to vent the exhaust fumes. These particular types of furnaces use positive pressure vent systems exhaust gas temperature less than 1400f above the dew point temperature and are always equipped with an induced draft motor that. This type is an ideal alternative to natural vent systems.

4 4 out of 5 stars 24. High efficiency gas furnaces have plastic vent pipes that extend to the outdoors to get rid of exhaust gases and bring in fresh air for combustion. Yet the manual and code seem to be ok either one as long as the respective astm specs are met. Kohree flying insect screen bug screen rv furnace vent cover replacement rv camper heater exhaust screen cover 2 packs 2 8 inch stainless steel mesh screen.

Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. These pvc pipes are connected to the furnace and expelled outside. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner. Some high efficiency furnaces also include a plastic pipe for intake area and all types use a third plastic pipe to drain away the corrosive condensation resulting from the combustion process.

Pvc cpvc and abs. A plumbing project left me with some lengths of schedule 40 pvc pipe which i would like to get rid of on my direct vent install.