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VENTING INSTRUCTIONS
MOUNT VENT CAP AT LEAST 12” (31CM)
FROM INSIDE CORNERS AND
ALL OTHER VENT CAPS.
VENT CAP MUST BE INSTALLED WITH
A VENT TERMINATION CLEARANCE OF
AT LEAST 12” (31 CM) FROM ANY
AIR OPENING INTO A BUILDING.
VENT CAP MUST BE AT LEAST 3’-0” (92 CM)
ABOVE ANY FORCED AIR INLET
LOCATED WITHIN 10’-0” (305 CM)
LOCATE VENT CAP TO ALLOW 12”
(31 CM) MIN ABOVE GRADE.
VENT CAP MUST BE AT LEAST 12” (31 CM)
HORIZONTALLY FROM ANY ELECTRIC METERS,
GAS METERS, OR RELIEF EQUIPMENT
NOTE: IF THERE IS A POTENTIAL FOR EXCESSIVE WINDS,
SPECIAL CONSIDERATION SHOULD BE GIVEN TO LOCATE THE
VENT TERMINATION AWAY FROM THE WINDWARD SIDE OF THE BUILDING.
Figure 9 - Vent Clearances
When multiple boilers are used, a clearance of 12" (31 ccm) is required between vent caps.
National Excelsior Company
www.excelsiorhvac.com
Subject to change without notice.
