Gas Furnace Flue Pipe Sizing

Flue gas temperatures that do not exceed 400 degress fahrenheit above ambient for category i appliances.

Gas furnace flue pipe sizing. Clearance installations must provide the proper clearances to combustible materials as specified in the appropriate underwriters laboratories inc. Reduce furnace flue vent connector size below furnace outlet size. I want to purchase a new boiler to heat both sides which i have zoned. The pipe then slips into the hole and is sealed with a high temperature silicone caulk.

So let s calculate or why don t we skip those calculations and i ll give you the answers. The size would depend on your furnace s flue pipe connection. 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. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys.

Well making sure that you choose the right venting style will protect them. When we are talking about gas furnace vent pipe code we need to talk about the different types of the vents first after all you want to keep your family safe from harm. I have a single 2650 sq ft home that was once subdivided one side had a 133 000 btu oil boiler and i have a 115 000 gas boiler. You would core a hole 1 4 to 1 2 inch bigger than the outer diameter of the pipe.

Conditions for listing as stated in the product catalogs and embossed on the vent pipe.