syncFURNACE OD Instruction & Installation Manual – Rev 09 Pg. 26 of 81
VENTING TERMINATION CLEARANCES:
In Canada and the USA the Combustion Air Inlet termination MUST NOT be –
1. 1 foot below the local annual snow level.
2. When using IPEX CPVC Concentric Kit, Roof Termination, Combustion Air Inlet - Less than two (2)
feet (.61m) away from the perpendicular roof line.
In Canada and the USA the Flue Gas Outlet termination MUST NOT be –
1. Less than seven (7) feet (2.13m) above a paved sidewalk, paved driveway or parking lot located
on public property.
2. Terminated above a public sidewalk, driveway or parking lot.
3. Terminated above a private sidewalk or driveway that is shared / serves both dwellings.
4. Less than three (3) feet (.92m) away from a non-mechanical air supply into a building.
5. Less than three (3) feet (.92m) away from each side of center line above or below meters,
regulators and relief devices.
6. Less than two (2) feet (.61m) under a veranda, porch, deck or balcony. (If veranda, porch, deck or
balcony is made of concrete and a minimum of two sides are fully open installation is permitted).
7. Less than three (3) feet (.92m) away from nearest object when inside the corner of an L-shaped
structure (including walls and fences).
8. Within two (2) feet (.61m) of a soffit, overhang, eave or parapet.
9. Within six (6) feet (1.83m) of a soffit vent, vent opening in an overhang, eave or parapet.
10. Terminated above, under or near exterior stairs.
11. Terminated into a canopy or carport.
12. In areas where condensation may cause problems, such as above planters, patios or adjacent to
windows where flue gases may cause fogging.
13. Installed in a location where ice formation on the ground can present a hazard.
14. Installed in a location so that flue gases are directed toward brickwork, siding or other building
materials that will cause damage from heat or condensate.
15. Installed in a location where discharging hot flue gases may cause property damage or personal
injury.
Canada only, the Flue Gas Outlet termination must NOT be –
1. Less than six (6) feet (1.83m) away from a mechanical air supply inlet (including heat recovery
units) to any building. (Dryer vents, non-sealed combustion furnaces and hot water heater vents
are considered to be mechanical air inlets).
2. Less than three (3) feet (.92m) away from a non-mechanical air supply into a building.
3. Less than three (3) feet (.92m) away from a combustion air inlet from any other building.
4. Less than six (6) feet (1.83m) away from electric meters, gas meters, regulators and relief
equipment.
5. Less than three (3) feet (.92m) away from a window, door or building opening.
USA only, the Flue Gas Outlet termination must NOT be –
1. Less than three (3) feet (.92m) away, if within 10 feet horizontally, from a mechanical air supply
inlet (including heat recovery units) to any building. (Dryer vents, non-sealed combustion furnaces
and hot water heater vents are considered to be mechanical air inlets).
2. Less than one (1) foot (.3m) away from a non-mechanical air supply into a building.
3. Less than one (1) foot (.3m) away from a combustion air inlet from any other building.
4. Less than four (4) feet (1.22m) away from electric meters, gas meters, regulators and relief
equipment.
5. Less than one (1) foot (.3m) away from a window, door or building opening.
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