What Is a Type L Vent Pipe
Type L Vents Are Designed for Venting Approved Oil-Fired and Natural-Gas Appliances That Produce Draft Hood Flue Gasses That Do Not Exceed a Temperature of...
Type L vents are designed for venting approved oil-fired and natural-gas appliances that produce draft hood flue gasses that do not exceed a temperature of 570º F (299º C), or 926º F (299º C) for 10 minutes in an over-fire situation. … Type L vents should not be used to vent coal- or wood-fired appliances.
What is Type C vent pipe?
Type C vents are used only as connectors. They are single walled galvanized pipes, and as such often called “galvanized pipes”. They are used only for venting gas or oil. Using a C vent with solid fuel appliances can cause extremely toxic fumes. This is the least expensive of the pipes.
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What is Type 3 vent pipe?
Category III refers to positive vent pressure which is created by exhaust blowers in unit heaters. These vent systems must be constructed of AL29-4C® stainless steel, contain gaskets for sealing, and have a built in mechanical locking band among other requirements.
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