Rev. E
P/N 472089
| vent terminated at least 24" |
| above any object within 10 ft. |
More Than10 ft. | |
Ridge | Vent Cap |
| 2 ft. min. |
| 3 ft. min. |
| Roof |
Roof | Thimble |
Jack |
|
| Chimney/Gas Vent |
Vent for roof penetration installations:
must extend at least 3 ft. higher than the point at which it passes through the roof, or as permitted by local code.
must use a roof thimble through the roof penetration.
must terminate with an approved (listed) roof jack, storm collar, and vent/weather cap.
Vent pipe extension:
must be the same diameter as the vent connector.
must be suitable for use with category III appliances with flue gas temperature ratings less than 400 deg. F.
may use a single wall vent pipe with permanently sealed seams, joints and proper insulating materials.
INDOOR INSTALLATIONS
MINIMAX NT VENTING GUIDELINES
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| 1' | min | . |
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| Vent Hood | ||
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| |
1' | min | . | 4' |
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4' |
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Vent Hood |
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| 3' |
| 4' |
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Force Air Inlet |
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| 1' min. |
| Vent Hood | above grade | ||
7' |
| |||
Walkway
Recommended sources for side wall Vent Hood;
see "Section Venting".
Vent termination for side wall installations:
must be not less than 7 ft. above public walkways.
must be at least 3 ft. above any outside air intake located within a 10 ft. radius.
must NOT be within 3 ft. of an inside corner of the structure. 
must be at least 1 ft. above grade.
must be located the following distances away from any door, window, or gravity air inlet:
4 ft. below
4 ft. horizontally 
1 ft. above
Air Supply
Clearances indicated are for |
|
For mechanical air supply inlet, a minimum horizontal clearance of 10 feet |
|
should be maintained away from the vent termination. | Figure 12. |
Section III. Installation
17