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I installed a UL 103 HT-listed Class A chimney pipe straight through my cabin roof in one afternoon. Here is exactly how I did it - from measuring the chimney path to sealing the roof flashing - plus the tools, clearances, and safety specs you need to know.

I ran a Class A insulated chimney pipe straight up through two floors and the roof of my two-story log home in Vermont. Here is how I planned the route, maintained 2-inch clearance to combustibles at every level, and completed the full installation in one day.

You install a Class A chimney kit in a shed by mounting a UL 103 HT rated, double-wall insulated pipe system that passes through the ceiling and roof with proper clearances. The kit includes insulated chimney sections, a ceiling support box, roof flashing, storm collar, and rain cap. With the right tools and the installation instructions, a capable owner can complete this installation; your building department confirms what it needs.

Can you put a wood stove in a garage? Yes, if nothing in the stove's manual or listing rules out a garage, your building department approves it and the stove meets your code's garage clauses: in the IRC, its ignition source at least 18 inches above the floor, and protection from vehicles.

Discover how others have installed our flue kits in sheds, garages, cabins, and homes. These real customer stories show you what to expect—and how easy it can be.

Single wall black stove pipe connects your wood stove to a ceiling support box or wall thimble inside the same room. It requires 18 inches of clearance to all combustible materials and must never pass through a wall, ceiling, or roof. This guide covers tools, step-by-step assembly, clearance rules, and the transition to Class A chimney pipe.

Double wall stove pipe is installed from your wood stove up to the ceiling support box or wall thimble, maintaining 6 inches of clearance to walls and 8 inches to ceilings. It connects to Class A chimney pipe at the transition point and must never pass through walls, floors, or ceilings on its own. 

To measure your roof pitch, hold a level horizontally against the roof, mark 12 inches from one end, and measure the vertical distance from the roof up to the level at that mark. That distance is the rise - expressed as rise over 12 (for example, 6/12).

To install a wood stove in a trailer, you need a small, low-BTU stove, a double-wall insulated chimney kit rated for mobile use, a non-combustible hearth pad, and a heat shield behind the stove. Mount the stove near the axle line for weight distribution, cut a roof or wall exit, and connect to Class A chimney pipe at the penetration point.