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Figure 17 - Stainless Steel Two Pipe Roof and Sidewall Venting
NOTE: These drawings are meant to demonstrate system venting only.
The installer is responsible for all equipment and detailing required by
local codes.
All vent pipes must be glued, properly supported, and the exhaust
must be pitched a minimum of ¼" per foot back to the boiler to allow
drainage of condensate. Exhaust connection insertion depth should
be a minimum of 2 ½" for 1000 models and 3" for 1700 models. When
placing support brackets on vent piping, the first bracket must be
within 1' of the appliance and the balance at 4' intervals on the vent
pipe. Boiler venting must be readily accessible for visual inspection
for the first three feet from the boiler.
Take extra precaution to adequately support the weight of vent
pipes terminating through the roof. Failure to properly support roof
terminated vent piping could result in property damage, serious
personal injury, or death due to flue gas leakage.
whl-428-r1 Rev. 001 Rel. 012 Date 7.21.20
Figure 15 - Venting with Optional Kits (NOT INCLUDED WITH THE
BOILER)
Figure 16 - Unbalanced Venting - Roof Exhaust and Sidewall Intake
An unbalanced vent system can be installed ONLY when the
exhaust is in the vertical position. Failure to do so could result in
serious personal injury or death.
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