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Running a wood stove chimney through a metal roof comes down to the sealing, not the pipe. Here is the Class A kit, the pitched flashing and the storm collar that make the penetration watertight.

Pick your wood stove chimney pipe kit by the path the flue takes out of the house, then match the diameter to your stove outlet. A complete kit gives you the Class A insulated pipe, support, flashing, storm collar and cap as one matched set.

Short answer: A tiny house wood stove needs a small-diameter listed Class A insulated chimney, sized to match the stove (our Class A comes in 6 and 8 inch), run straight up through the roof with correct clearances and enough height above the roofline.

For a wood stove or any solid-fuel appliance, use listed stainless steel chimney pipe, never galvanized. Galvanized steel is not rated for flue-gas heat, and its zinc coating can break down and give off fumes.

Short answer: the black stove pipe stops at the ceiling or wall, and Class A chimney pipe takes over from there. They join at a support box (a ceiling support box going up, or a wall thimble going out), never in the middle of the framing.

Short answer: use a chimney liner when you already have a masonry chimney and need to make the inside safe for a modern stove; use Class A insulated chimney pipe when there is no masonry chimney and you are building the vertical run yourself.

Short answer: for a new wood stove, a Class A insulated pipe system is faster, lighter, and cheaper than building a masonry chimney, and for most homes it's straightforward enough to install yourself, no mason, no foundation, no specialized crew. Masonry earns its place when you want a permanent, traditional chimney and are happy to pay for the foundation, the mason, and the time that take.

Quick answer: A flue is the inner channel or pipe that carries smoke and combustion gases out of your home. A chimney is the full vertical structure that houses the flue and rises above the roof. Put simply: the chimney is the box, and the flue is the tube inside it that does the venting. One masonry chimney can hold several flues, while a modern Class A insulated system combines the flue and the chimney structure into one engineered unit.

Match the liner to your appliance's flue outlet first, never to the masonry opening. Most modern wood stoves use a 6 inch round liner; a 5 inch liner suits smaller stoves whose manufacturer specifies a 5 inch flue collar.

The right kit is decided by how your chimney leaves the house, not by the stove alone. Going straight up through the roof needs a Class A through-the-roof kit; punching out a side wall and running up the outside needs a through-the-wall kit.  a garage, a two-story home, or an existing masonry chimney each have their own matched kit.