D. exhaust vent and intake air vent pipe location – HTP 850 LPHL User Manual
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LP- 205 REV. 3.28.14
Figure 12
D. EXHAUST VENT AND INTAKE AIR VENT PIPE LOCATION
You must insert the provided intake and exhaust screen at your vent termination to prevent blockage caused by debris or birds.
NOTE: SEE ADDITIONAL REQUIREMENTS FOR MASSACHUSETTS IN THE BACK OF THIS MANUAL.
1. Determine exhaust vent location:
Total length of vent may not exceed the limits specified in the Venting Section, Part 6.
The vent piping for this boiler is approved for zero clearance to combustible construction.
See Venting Details within this section of clearances for location of exit terminals of direct-vent venting systems.
Avoid terminating exhaust vents near shrubs, air conditioners or other objects that will obstruct the exhaust stream.
The flue products coming from the exhaust vent will create a large plume when the boiler is in operation. Avoid venting in
areas that will affect neighboring buildings or be considered objectionable.
The boiler vent system shall terminate at least 3 feet (0.9 m) above any forced air intake located within 10 ft (3 m). NOTE: This
does not apply to the combustion air intake of a direct-vent appliance.
Provide a minimum of 1 foot distance from any door, operable window, or gravity intake into any building.
Provide a minimum of 1 foot clearance from the bottom of the exhaust above the expected snow accumulation level. Snow
removal may be necessary to maintain clearance.
Provide 4 feet horizontal clearance from electrical meters, gas meters, gas regulators, relief equipment, exhaust fans and
inlets. In no case shall the exit terminal be above or below the aforementioned equipment unless the 4 foot horizontal distance
is maintained.
Do not locate the boiler exhaust over public walkways where condensate could drip and/or freeze and create a nuisance or
hazard.