Supporting Your Flue System

Supporting Your Flue System

Providing adequate support for your flue system is critical for the safety and longevity of your wood stove installation.

Tiny Wood Stove provides various hardware to secure your flue system to your structure.

Supporting a Roof Exit

A roof exit must be supported at a minimum of two points to ensure its stability.  For most roof exits, these two points are at the stove flue flange, and at the point where the flue penetrates the roof.

Roof Support Bracket

The Tiny Wood Stove Roof Support Bracket is meant to fully support the weight of the flue system at the point where it penetrates the roof.

The Roof Support Bracket can go on the roof under the pipe boot/flashing, on the ceiling above the trim plate, or anywhere in between.  The bracket can be installed right-side up or upside-down, whichever is most convenient.  You should choose the best position and orientation for your particular installation.  The only requirement is that the bracket is fastened to a part of the building that is substantial enough to support the entire weight of the flue system.

If you are installing the roof support bracket on top of the roof under the pipe boot, you will need to trim the bracket to fit under the boot.

  • The base of the L-bracket is wider than the flange of most pipe boots, so you will need to remove some metal with an angle grinder to get it to fit.  Orienting a square base pipe boot like a diamond (with the corner pointed up) can minimize the amount of material you need to remove.
  • The top corner of the bolt surface of the ring clamp can sometimes interfere with a boot or a flashing.  Orienting the bracket so that the bolt is on the high side of the roof can help keep it out of the way.  If necessary, you can cut the top corner of the bracket off so that it fits under the pipe boot.

Extended Roof Support Bracket

If your chimney extends more than 5 or 6 feet (depending on local codes) above your roof line, or if you live in a high-wind area, you may need to add an extended roof support bracket.  (See "The 3-2-10 Rule: How high above my roof should my chimney extend?")

The extended roof support bracket includes a clamp that fits the outer diameter of our insulated pipe, and two arms that extend to brace the chimney against the roof.  This creates a "tripod," which prevents the chimney from blowing over.

Supporting a Wall Exit

A wall exit must be supported at a minimum of two points to ensure its stability.  Those two points are at the wall penetration using the tee support bracket, and at a higher point on the structure using the wall support bracket.

Tee Support Bracket

The Tiny Wood Stove Tee Support Bracket consists of a short section of insulated pipe attached to a mounting plate, and two triangular braces that bolt to the plate.  The tee support is typically installed on the bottom of the insulated tee at the wall penetration, and fastened to the exterior wall of the structure to support the vertical weight of the chimney.

Wall Support Bracket

The Tiny Wood Stove Wall Support Bracket braces the vertical insulated chimney and fastens to an exterior wall to provide lateral support.  A bracket should be used to support the chimney pipe at a minimum of every 6-8 feet (depending on the manufacturer) up the side of the structure.

If you are using insulated elbows to offset your chimney (i.e. if you need to miss an eave), it's a good idea to put one wall support bracket below the elbows, and one above the elbows, to ensure your chimney is well-supported.

Extended Roof Support Bracket

If your chimney extends more than 5 or 6 feet (depending on local codes) above the highest wall support bracket, or if you live in a high-wind area, you may need to add an extended roof support bracket.  (See "The 3-2-10 Rule: How high above my roof should my chimney extend?")

The extended roof support bracket includes a clamp that fits the outer diameter of our insulated pipe, and two arms that extend to brace the chimney against the roof.  This creates a "tripod," which prevents the chimney from blowing over.

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