What Gauge Is C Vent

On the left is a “C” vent fitting. It is generally 26 gauge wall thickness for the smaller sizes, galvanized, and is single wall. This pipe is used on older gas furnaces such as the natural draft one above.

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.

What gauge is water heater vent pipe?

Assuming the draft hood is correct, the metal vent flue should be at least 26 gauge galvanized steel–Not metal dryer vent material or some other random metal uncle Billy Bob found in his back yard. The drafting of the flue gasses on this type of water heater uses the concept of ‘hot air rises’.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.

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