Connecting the Stove Pipes
Start by inserting the crimped end of the chimney connector pipe into the flue collar on the stove. Use three sheet metal screws to attach the pipe securely to the stove. Once the assembly is complete, all of the crimped ends will point toward the stove rather than the wall.
The male end of the stove pipe for wood burning should always point down and/or pointing at the stove. Also, the wood stove pipe should always be inserted into the collar of the wood stove outlet. This may sound backwards considering the direction in which the flue gas is traveling.
A wood stove pipe must be as short and straight as possible. At the least, 80% of it must be vertical. If it is so important, one or two 90˚ angles, at most, can be made part of the structure. The horizontal part should not rise more than a quarter from the linear foot.
Stove pipe should always be installed with the “male-end-down”. Installing the pipe male-end-down allows creosote drippings to go back down into your stove instead of running down your pipe onto the stove or floor.
The pipe connected to a wood or pellet stove should not need sealing unless it has a hole or leak in it. When conditions are right, the negative pressure and natural draw of the stovepipe causes the hot smoky air to rise through the pipe and out the chimney.
In essence, any chimney, stove pipe or other heating exhaust vent should be 3 feet (1 meter) above the roofline or 2 feet (61 centimeters) above any part of the building in a 10-foot (3-meter) radius.
If your fireplace chimney does not have a liner, you should run the stove pipe up to the top of the chimney and seal the area between the liner and the chimney wall at the top and at the bottom near the damper.
The reason why you must use double-wall pipe for a clearance of 18″ or under is because it is air insulated. The outside of the double-wall pipe does not radiate heat like single-wall does. The air insulation also allows your wood stove to perform better.
How to Put a Stove Pipe Together
Line Up Stove Pipe. Set a length of stove pipe flat on the floor with the two open ends of the center seam facing away from the floor.Align Seam Corners. Snap Pieces Together. Attach With a Screw. Align Stove Pipe Seams. Slide Pieces Together. Attach with Screws.
The standard clearance recommended by the National Fire Protection Agency is 36 inches. This means that the back of the stove should be 36 inches away from any combustible material, such as woodwork, unprotected walls, furniture and even firewood.
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