// CODE SNIPPET
G2427.8 (503.8) Venting System Termination Location
JUMP TO FULL CODE CHAPTER
The location of venting system terminations shall comply with the following (see Appendix C):
- A mechanical draft venting system shall terminate not less than 3 feet (914 mm) above any forced-air inlet located within 10 feet (3048 mm).Exceptions:
- This provision shall not apply to the combustion air intake of a direct-vent appliance.
- This provision shall not apply to the separation of the integral outdoor air inlet and flue gas discharge of listed outdoor appliances.
- A mechanical draft venting system, excluding direct-vent appliances, shall terminate not less than 4 feet (1219 mm) below, 4 feet (1219 mm) horizontally from, or 1 foot (305 mm) above any door, operable window or gravity air inlet into any building. The bottom of the vent terminal shall be located not less than 12 inches (305 mm) above finished ground level.
- The clearances for through-the-wall, direct-vent terminals shall be in accordance with Table G2427.8.
- Through-the-wall vents for Category II and IV appliances and noncategorized condensing appliances shall not terminate over public walkways or over an area where condensate or vapor could create a nuisance or hazard or could be detrimental to the operation of regulators, relief valves or other equipment. Where local experience indicates that condensate is a problem with Category I and III appliances, this provision shall also apply. Drains for condensate shall be installed in accordance with the appliance and vent manufacturer's instructions.
- Vent systems for Category IV appliances that terminate through an outside wall of a building and discharge flue gases perpendicular to the adjacent wall shall be located not less than 10 feet (3048 mm) horizontally from an operable opening in an adjacent building. This requirement shall not apply to vent terminals that are 2 feet (607 mm) or more above or 25 feet (7620 mm) or more below operable openings.
TABLE G2427.8 (503.8)
THROUGH-THE-WALL, DIRECT-VENT TERMINATION CLEARANCES
| DIRECT-VENT APPLIANCE INPUT RATING (Btu/hr) | THROUGH-THE-WALL VENT TERMINAL CLEARANCE FROM ANY AIR OPENING INTO THE BUILDING (inches) |
| < 10,000 | 6 |
| ≥ 10,000 ≤ 50,000 | 9 |
| > 50,000 ≤ 150,000 | 12 |
| > 150,000 | In accordance with the appliance manufacturer's instructions and not less than the clearances specified inSection G2427.8, Item 2 |
For SI: 1 inch = 25.4 mm, 1 Btu/hr = 0.2931 W.
Related Code Sections
G2427.8 Fuel Gas, (503.8) Venting System Termination Location
The location of venting system terminations shall comply with the following (see Appendix C): A mechanical draft venting system shall terminate ...
Residential Code 2018 of Kansas > 24 Fuel Gas > G2427 (503) Venting of Appliances > G2427.8 (503.8) Venting System Termination Location
503.8 Chimneys and Vents, Venting System Termination Location
The location of venting system terminations shall comply with the following (see Appendix C): A mechanical draft venting system shall terminate ...
Fuel Gas Code 2018 of Kansas > 5 Chimneys and Vents > 503 (IFGS) Venting of Appliances > 503.8 Venting System Termination Location
503.8 Prescriptive Compliance Method, Anchorage for Unreinforced Masonry Walls in Major Alterations
structural system includes unreinforced masonry bearing walls, the alteration work shall include installation of wall anchors at the floor and roof ...
Existing Building Code 2018 of Kansas > 5 Prescriptive Compliance Method > 503 Alterations > 503.8 Anchorage for Unreinforced Masonry Walls in Major Alterations
M1804.2 Chimneys and Vents, Termination
not be installed at the termination of vents except where the shrouds are listed and labeled for use with the specific venting system and are installed ...
503.2.4 Chimneys and Vents, Appliances With Integral Vents
Appliances incorporating integral venting means shall be installed in accordance with the manufacturer's instructions and Section 503.8, Items 1 ...
Fuel Gas Code 2018 of Kansas > 5 Chimneys and Vents > 503 (IFGS) Venting of Appliances > 503.2 Venting Systems Required > 503.2.4 Appliances With Integral Vents