Flue Pipes are an integral part of your wood burning appliance and important for safe wood burning.
Stove pipe is installed from the connector located at the top or rear of the wood burning appliance, to the bottom of the ceiling or wall where it will connect to class-A chimney pipe or a masonry chimney using an Approved Connector or Thimble. Single Wall Stove Pipe radiates more heat into the room than double wall stove pipe and requires 18″ clearance from combustible surfaces where Double Wall Stove Pipe requires only 6″ from walls and 8″ from ceilings when used horizontally. For close-clearance installations or mobile home installations use double wall stove pipe. Always follow manufacturer recommendations installing any product for your wood burning appliance. You are not allowed to use a chimney that is smaller in diameter than the flue size of the appliance it is being connected to. All parts for your chimney must be designed to be used with each other. You are not allowed to modify a Certified or Approved product without written approval from manufacture.
How to Determine the number of Chimney Pipe lengths required. The chimney must extend at least 3 feet above the highest point where it passes through the roof, and be at least 2 foot higher than any part of the building within a horizontal distance of 10 feet. The termination cap is installed above this point. If the chimney pipe extends more than 5 feet above the roof, an pair of roof brackets must be installed to provide stability. When calculating the installed length of your chimney you must subtract for each joint, and include the height requirements as described. This allows for the overlap of tight fitting joints.
Fireplace Flue Pipes
Fireplaces are one of the biggest energy wasters when the flue is not used properly. This occurs when the flue is left open too wide after the fire is started. Known as convection, warm air from the house is pulled up the chimney, while cold air from outside is pulled into the house wherever it can enter, including around leaking windows and doors. Ideally, the flue should be open all the way when the fire is first started, and then adjusted toward closure as the fire burns until it is open just enough to slowly pull smoke from the fire up the chimney. After the flue heats up from the fire, they are easier to move, but also hotter. Hands should be protected when operating the flue lever; and if a new log is added to the fire, the flue must be adjusted again to ensure that smoke does not billow out into the house.
When installing a chimney use our handy Chimney Installation Reference.
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