Type B Gas Furnace Vent Pipe Code

A gas wall heater or older forced air furnace generally requires a type b double wall metal vent pipe while a new high efficiency furnace requires a schedule 40 pvc vent pipe.

Type b gas furnace vent pipe code. This article series describes b vent metal chimneys used for gas fired appliances. Duravent 6 inner diameter type b round gas vent pipe double wall 12 adjustable pipe length. Check your email for a 5 off coupon code. To edit your subscription preferences login to.

Type b vents are a standard design that most modern gas furnaces use. 8 inch round gas vent collection. Illustrations of proper gas fired water heater venting using type b double wall vent pipe through a roof above or through a chimney below include details for the flue vent connector such as the requirement of a minimum vent connector upwards slope of 1 4 per foot of horizontal run. Duravent 8 inner diameter type b round gas vent pipe double wall 12 adjustable pipe length.

It draws air from within the house for combustion. Vent connectors slope in ft upward to chimney vent not smaller than appliance flue up to 2 sizes larger than appliance flue length depends on type for single appliance single wall 75 of vent height b vent 100 of vent height 18 inch diameter for multiple appliances 34. Gases produced during combustion are very hot and as such easily rise through the flue. The air is then vented outside through a b vent pipe which.

6 inch round gas vent collection. If you don t see it check your spam folder. Minimum clearance between the vent and combustible materials is 3 inches for l vent and 1 inch for type b gas vent. It operates on natural air convection and is also known as the type b vent.

Most installations require additional pipe lengths and an adjustable 90 l connector. We discuss fire safety fire clearances and other gas appliance venting details for b vent chimneys. If you don t see it check your spam folder. Also known as the type b this vent is operating on the natural air convection.

Type b gas vent is designed for venting approved gas appliances equipped with draft hoods and other listed gas appliances specified for use with type b gas vent which produce flue gases not exceeding 480 f 249 c. Type b vents ceiling floor wall clearances b vent clearances to combustibles clearance distances for a b vent to combustible materials in floors walls ceilings attics roofs. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner. When the vent is withdrawing air from the house it expels the gas outside through the vent.

Type b vent pipe. Check your email for a 5 off coupon code.