Lanair HI140i User Manual
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SECTION 4 CHIMNEY INSTALLATION
4.1 Failure to provide proper venting of the heater exhaust gases could result
in death, serious injury, and/or property damage FOLLOW CHIMNEY
MANUFACTURERS INSTRUCTIONS.
4.2 Safe operation of any gravity vented heating appliance requires a proper air
make-up system to prevent the heater exhaust gases from being drawn
into the building. These gases could cause death, serious injury, and/or
property damage. Exhaust fans, paint booths may cause draft problems.
4.3 Never vent this heater into another heating appliances chimney. Never
vent into ‘Class B” chimney. Gas heaters use “Class B” chimney, it is rated
for a much lower temperature than is required for your waste oil furnace.
This heater must have its own separate “Class A” chimney.
4.4 Inspect and maintain the chimney on an annual basis.
4.5 Install a U.L. listed barometric damper in the chimney. Do not reduce or
enlarge the vent pipe.
4.6 Do not use more than one 90° elbow. Each 90° elbow equals a 10’ run of
chimney. The maximum run for the chimney connector is 30’.
4.7 To prevent the drawing of exhaust gases into the building, keep the
barometric draft control at least 24” from the heater, exhaust fan etc..
4.8 Position the draft control as shown. Chimney angle gate pins must be
horizontal for proper operation.
4.9 Secure all connections in the chimney connector with 3 screws per joint.
4.10 The chimney connector clearance to any combustible material is 18”. The
“Class A” chimney clearance to any combustible is 2”. Follow the
manufacturers instructions.
4.11 Do not install heat re-claimers, manual draft controls, or any other type of
restrictive control in the chimney.
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