Part Number 550-110-268/0699 3
StaR-34 Venting Supplement
Vent termination
Venting method definitions
Direct vent — Uses outside combustion air with combustion
airconnectorpipingsealedatalljointsandseams.Alsoknownas
“sealedcombustion”.
Non-Direct vent — Uses inside combustion air with no
combustion air connector piping.
Figure 1 Vent termination locations
26807
Snow
1 foot
1 ft 1 ft
1 ft
Properly locate vent termination
Follow instructions on this page when
determiningventlocationtoavoidpossibility
ofseverepersonalinjury,deathorsubstantial
property damage.
1. When using direct vent method — Refer to separate
instructionspackedwithWeil-McLaindirectventtermination
kit and vent pipe manufacturer's instructions for additional
locations.
2. Forlocationof non-directventverticaltermination,seevent
pipemanufacturer's instructions.
3. Gaseswillformwhiteplumeinwinter.Plumecouldobstruct
windowview.
4. Prevailing winds could cause freezing of condensate and
water/ice buildup on building, plants or roof.
5. Locateorguardventtoprevent accidentalcontactbypeople
or pets.
6. Do not terminate vent in window well, stairwell, alcove,
courtyard,or other recessed areas.
7. Non-Direct vent installations only — Vent must terminate
more than 1 foot below or to side of all doors or windows.
See Figure 1.
8. Vent must terminate more than 1 foot above grade or
anticipatedsnowline.Inaddition,ventterminationmustbe
atleast7feetabovepublicwalkwayand3feetaboveanyforced
air intake within 10 feet. Stay well away from trees, shrubs,
and decorative items. Site conditions may dictate greater
clearances.See Figure 1.
9. Vent must terminate at least 4 feet horizontally, and in no
case above or below, unless a 4 foot horizontal distance is
maintained,fromelectricmeters,gasmeters,regulators,relief
valves, and other equipment.
10. Locate or guard vent to prevent condensate from damaging
exteriorfinishes.
11. Do not extend exposed vent pipe outside of building.
Condensate could freeze and block vent pipe.
12. Ventmust terminateatleast6 feetaway fromadjacentwalls.
13. Donotterminateventcloserthan5feetbelowroofoverhang.
14. Donotterminateventaboveanydoororwindow.Condensate
can freeze,causing ice formations.
15. Do not useexisting chimneyasraceway if anotherappliance
or fireplace is vented into or through chimney.
16. Do not connect:
•Any other appliance to vent pipe.
•Multiple boilers to a common vent pipe.
17. Do not wrap or insulate vent pipe and fittings.
18. Canadian installations — See CAN/CGA B149.1 or B149.2
InstallationCode.
19. A gas vent extending through an exterior
wallshallnotterminateadjacenttothewall
orbelowbuildingextensionssuchaseaves,
parapets, balconies or decks. Failure to
comply could result in severe personal
injury, death or substantial property
damage.
26808
Forced
air intake
Public Walkway
3 feet
If within 10 feet
7 feet
