2” (50.8mm) Max 36” Min | Exhaust | |
(914.4mm) | ||
|
“A”
8″ Min.
Exhaust 
12″ (304.8mm) 
Min. Grade or Snow Level
Combustion
Air
OR
36”Min
(914.4mm)
“A”
Inlet
12″ (304.8mm) Min.
Grade or Snow Level
8″ (457.2mm) Min.
20′ (6.1m) Max.
18″ (457.2mm) Min. for Cold Climates [Sustained 0°F(- 17°C) and below for 24 hours or more consecutive hours]
58HDV
|
|
| Dimension “A” is touching or 2″ (50.8mm) maximum separation. |
|
|
| |
|
| A07718 | A07696 |
Fig. 26 - Concentric Vent and | Fig. 28 - Sidewall Inlet Vent and | ||
Roof Termination |
| ||
| 1″ (25.4mm) |
Combustion Air | Maximum |
| Vent |
“A”
Vent | Exhaust |
Dimension “A” is touching or 2″ (50.8mm) maximum separation.
8″ (203.2mm) Min.
20′ (6.1m) Max.
Exhaust 
“A”
8″ (203.2mm) Min.
12″ (457.2mm)
Inlet Min. Grade or
Snow Level
“A”
18″ (457.2mm) Min. for Cold Climates [Sustained 0°F(- 17°C) and below for 24 hours or more consecutive hours]
A07695
Dimension “A” is touching or 2″ (50.8mm) maximum separation.
Fig. 27 - Concentric Vent and Combustion Air
Sidewall Termination
A07697
Fig. 29 - Sidewall Inlet Vent and Exhaust-Air Termination
with Exterior Risers
8″ (203.2mm) Min.
20′ (6.1m) Max.
Inlet 
12″ (304.8mm)
Min. Grade or Snow Level 
Exhaust 
18″ (457.2mm) Min. for Cold Climates [Sustained 0°F(- 17°C) and below for 24 hours or more consecutive hours]
A07698
Fig. 30 - Rooftop Inlet Vent and Exhaust-Air Termination
30
