Appendix 2: Fresh Air Intake Installation - HearthStone WFP-75 8411 Manuel D'installation Et D'utilisation

Report prepared for Guillaume Thibodeau-Fortin (Stove Builder International Inc.) on
6/8/2020 7:48:41 AM
MANUAL INSTALLATION AND OPERATION WFP-75 8411 ENGLISH
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APPENDIx 2: FRESH AIR INTAKE INSTALLATION

During operation, the fireplace requires fresh air for combustion and draws air out of the house.
It may starve other fuel burning appliances such as gas or oil furnaces. As well, exhaust fans
may compete for air, causing negative pressure in the house, resulting in smoke entering the
house from the fireplace. This situation is aggravated in modern airtight houses. To overcome
this problem, we strongly recommend that you bring fresh air to the fireplace. Check with local
authorities having jurisdiction in your area, it may be mandatory.
Follow these instructions to install a fresh air intake kit
• The insulated flexible pipe length (D) should
be sufficient and have a configuration to avoid
condensation.
• The outside wall termination (E) must not be
installed:
- At more than 50% of the total height of the
chimney;
- At more than 10 ft. (3 m) above the base of
the fireplace;
- At more than 3 ft. Below the base of the
fireplace.
• The fresh air must come from outside the house.
The air intake must not draw air from the attic,
from the basement, or from a garage.
• The outside wall termination should be installed
where it is not likely to be blocked by snow
or exposed to extreme wind and away from
automobile exhaust fumes, gas meter and other
vents.
• The insulated flexible pipe and the outside wall termination can be installed over or under the floor
level.
• The fresh air intake kit included with the fireplace contains the following components:
- One (1) 5» adaptor;
- One (1) air inlet block-off plate;
- Four (4) screws.
• The following components are not included:
- A 5" insulated flexible pipe (D) (This HVAC type pipe must comply to ULC S110 and/or UL 181,
Class 0 or Class 1 Standards and must withstand temperatures up to 250 °F.
- The outside wall termination (E).
- Adjustable clamps (2X) (C).
Note: Only remove the knock-out that will be connected to the fresh air inlet.
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Stove Builder International Inc. | 46345 | Rev: Apr 13 2020 12:33PM | Uncontrolled Copy
WFP-75 8411
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