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J B
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D G M
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C
P
V
(See Note 2)
Measure vertical clearances from this surface.
Measure horizontal clearances from this surface.
V
= VENT TERMINAL | X = AIR SUPPLY INLET |
= AREA WHERE TERMINAL IS NOT PERMITTED
A | = | 12 inches | clearances above grade, veranda, | J** | = | .7 ft ......................... clearance above paved | ||||||||||
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B | = | 12 inches | clearances to window or door |
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| 42 inches | vinyl |
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| nently closed window. (Glass) | K | = |
| 6 inches.................clearance from sides of electri- | |||||||||
C | = | 18 inches | vertical clearance to unventilated |
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| soffit or to ventilated soffit located | L | = | 12 inches | clearance | above electrical | ||||||||
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| above the terminal |
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| (See Note 5) | service |
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| 30 inches | for vinyl clad soffits and below |
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| Covered Alcove Applications |
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| M*** = | 18 inches................ clearance under veranda, |
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D | = | 9 inches | clearance to outside corner |
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E | = | 6 inches | clearance to inside corner |
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F | = | 3 ft. (Canada) | not to be installed above a gas |
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| 12 inches ................vinyl sidewalls |
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G | = | 3 ft | clearance to gas service regulator |
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| PMIN |
| QMAX |
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| vent outlet |
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H | = | 9 inches (U.S.A.) |
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| 1 cap |
| 3 feet |
| 2 x Q ACTUAL |
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| 12 inches (Canada) clearance to |
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| 2 caps |
| 6 feet |
| 1 x Q ACTUAL |
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| (See Note 2) | air supply inlet to building or the |
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| 3 caps |
| 9 feet |
| 2/3 x Q ACTUAL |
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i | = | 3 ft. (U.S.A.) |
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| 4 caps |
| 12 feet |
| 1/2 x Q ACTUAL |
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| 6 ft. (Canada) | clearance to a mechanical (pow- |
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| PMIN = # termination caps x 3 | QMAX = (2 / # termination caps) x PACTUAL |
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| (See Note 2) | ered) air supply inlet |
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**a vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings.
***only permitted if veranda, porch, deck or balcony is fully open on a minimum of 2 sides beneath the floor, or meets Note 2.
Note 1: On private property where termination is less than 7 feet above a sidewalk, driveway, deck, porch, veranda or balcony, use of a listed cap shield is suggested. (See vents components page)
Note 2: Termination in a covered alcove space (spaces open only on one side and with an overhang) are permitted with the dimensions specified
for vinyl or
Note 3: Local codes or regulations may require different clearances.
Note 4: Termination caps may be hot. Consider their proximity to doors or other traffic areas.
Note 5: Location of the vent termination must not interfere with access to the electrical service.
In the U.S and Canada: Vent system termination is NOT permitted in screened porches.
Vent system termination is permitted in porch areas with two or more sides open. You must follow all side walls, overhang and ground clearances as stated in the instructions.
Heatilator assumes no responsibility for the improper performance of the appliance when the venting system does not meet these requirements.
Figure 6.4 Minimum Clearances for Termination
CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE INSTALLED.
22 | Heatilator • GDST3831I • |