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Single Wall & Double Wall
Gas Vent
Special V & 2V Type BH
Single Wall Clearances
| SINGLE WALL -V VENT DIAMETER (ID) | -V THIMBLE ASSEMBLY VENT SHELL DIAMETER (THRU PENETRATION) | -V THIMBLE ASSEMBLY CLEARANCE TO COMBUSTIBLES (SHELL TO JOIST) | CLEARANCE TO COMBUSTIBLES (VENT TO CEILING/WALL) | CLEARANCE TO NON-COMBUSTIBLES | THROUGH WALL/FLOOR OPENING |
|---|---|---|---|---|---|
| 5" | 9" | 1" | 3" | 0" | 13-1/2" |
| 6" | 10" | 1" | 3" | 0" | 14-1/2" |
| 7" | 11" | 1" | 3" | 0" | 15-1/2" |
| 8" | 12" | 1" | 3" | 0" | 16-1/2" |
| 10" | 14" | 1" | 3" | 0" | 18-1/2" |
| 12" | 16" | 2" | 4" | 0" | 20-1/2" |
| 14" | 18" | 2" | 4" | 0" | 22-1/2" |
| 16" | 20" | 3" | 5" | 0" | 26-1/2" |
| 18" | 22" | 3" | 5" | 0" | 28-1/2" |
| 20" | 24" | 3" | 5" | 0" | 30-1/2" |
| 22" | 26" | 4" | 6" | 0" | 34-1/2" |
| 24" | 28" | 4" | 6" | 0" | 36-1/2" |
| 26" | 30" | 5" | 7" | 0" | 40-1/2" |
| 28" | 32" | 5" | 7" | 0" | 42-1/2" |
| 30" | 34" | 6" | 8" | 0" | 46-1/2" |
| 32" | 36" | 6" | 8" | 0" | 48-1/2" |
| 34" | 38" | 7" | 9" | 0" | 52-1/2" |
| 36" | 40" | 7" | 9" | 0" | 54-1/2" |
Double Wall Clearances
| -2V VENT DIAMETER (ID) | -2V THIMBLE ASSEMBLY VENT SHELL DIAMETER (THRU PENETRATION) | -2V THIMBLE ASSEMBLY CLEARANCE TO COMBUSTIBLES (SHELL TO JOIST) | CLEARANCE TO NON-COMBUSTIBLES | THROUGH WALL/FLOOR OPENING |
|---|---|---|---|---|
| 5" | 9" | 3" | 0" | 15-1/2" |
| 6" | 10" | 3" | 0" | 16-1/2" |
| 7" | 11" | 3" | 0" | 17-1/2" |
| 8" | 12" | 3" | 0" | 18-1/2" |
| 10" | 14" | 3" | 0" | 20-1/2" |
| 12" | 16" | 3" | 0" | 22-1/2" |
| 14" | 18" | 3" | 0" | 24-1/2" |
| 16" | 20" | 3" | 0" | 26-1/2" |
Product Resources
The Special Gas Vent -V Type BH Series has been certified by UL. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. Product safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance.
Model DW-V Type BH is UL Listed under file number MH60693 and complies with UL 1738, ULC S636-08.
The Special Gas Vent -2V Type BH Series has been certified by UL. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. Product safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance.
Model DW-2V Type BH is UL Listed under file number MH60693 and complies with UL 1738, ULC S636-08.
