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Black Stovepipe by DuraVent

Single Vs. Double Wall

Single Wall:
Construction: Single-walled pipe is made of very light gauge steel. There is no insulation (either mineral/fiber or air barrier) present.
Clearance: 18" Clearance
Warranty: Most single wall comes with only a 5 year warranty.

Pros: Radiates a great amount of heat, helping heat rooms quickly.

Cons: Because of its very light construction and the type of steel used; the caustic exhaust produced by your appliance quickly eats the material away.  


Double Wall:
Construction: Single-walled pipe is made of very light gauge steel. There is no insulation (either mineral/fiber or air barrier) present.
Clearance: 6" to walls, 8" to ceilings
Warranty: Most double wall comes with a 10 year warranty.

Pros: Because of its heavier construction and the type of steel used double-walled pipe is much more resistant to degredation over time.
Reduced Clearance; only 6" to walls compared to 18" of single-wall.
The second wall of air insulation keeps the internal core hotter, boosting draft and efficiency.

Cons: Heavier, more expensive.

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