36
Boiler Manual
PART 6: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL
(CONTINUED)
Figure 6-13
LP-293-T Rev. 9/24/09
24" MIN.
INTAKE AIR
AND VERTICAL PIPING
EXHAUST VENT
(STRAIGHT COUPLING)
SUPPORT BRACKETS
MUST BE USED ON
ALL HORIZONTAL
12" OVER MAXIMUM SNOW LEVEL
OR 24"
WHICHEVER IS GREATER.
WHICHEVER IS GREATER.
MAINTAIN MIN. 12"
CLEARANCE ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL OR GRADE,
UNBALANCED FLUE / VERTICAL VENT
n
WARNING
You are only allowed to install an unbalanced vent system when the exhaust vent is in the Vertical
Position ONLY.
n
WARNING
All vent pipes must be glued, properly supported and the exhaust must be pitched a minimum of a ¼" per
foot back to the heater (to allow drainage of condensate). When placing support brackets on vent piping,
the first bracket must be within 1 foot of the appliance and the balance at 4 foot intervals on the vent pipe.
The boiler venting must be readily accessible for visual inspection for the first three feet from the boiler.
L. DIAGRAM FOR UNBALANCED FLUE/VERTICAL VENT
Summary of Contents for EL-110 LP
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