Furnace Flue Pipe Code

And why would you have to care about gas furnace vent pipe code.

Furnace flue pipe code.

All piping must be installed in accordance with local codes and these instructions. Vent system capacity the volume of flue gases produced by a furnace directly depends on the btuh input of the furnace. Fire clearances required range from 6 to 36 depending on the equipment. See also condensing boilers furnaces.

Always check your local state province codes and regulations. The length diameter and number of elbows of the vent flue pipe and combustion air pipe when applicable affects the performance of the furnace and must be carefully sized. Intake and exhaust pipes pvc allowed 140 f limit furnace water heater boiler manual size of pipe and allowable lengths support terminations through wall or through roof 12 above grade or anticipated snow level in same pressure location concentric venting kit 25. Well the flue which is a term referring to the vent pipe is basically the important component from the furnace that will transport the emission from the combustion heating process to the outside area of the house.

Adhere to these instructions to ensure safe and proper furnace performance. Only fgv flue gas vent pvc certified to a specific standard ulc s636 may be used. This limit is not usually reached. Single wall metal pipe shall extend at least 2 feet 610 mm above the highest point where it passes through a roof of a building and at least 2 feet 610 mm higher than any portion of a.

8 national fuel gas code z223 1 16 00 and national fuel gas code handbook z223 2 47 00 american gas association a g a 1515 wilson boulevard arlington va 22209 also available from national fire protection association batterymarch park quincy ma 02269. Pipe gravity and the cooling of the flue gases you can make the pipe too long. There are different types grades of pvc on the market and some of them may not be allowed for use as flue gas exhaust. Metal flue fire clearance requirements single wall metal pipe flues gas fired equipment.

Fundamentals of gas appliance venting and ventilation 1985 american gas. For example here in canada schedule 40 pvc dwv drain pvc may not be used. Masonry flue or shared flue venting. 9 is a typical clearance between a gas fired boiler or furnace flue connector and combustibles.

Where the system is routed to the outdoors through an existing masonry chimney containing flue products from another gas appliance or where required by local codes then 3 venting of type 29 4c stainless steel must be used in place of pvc material.