Lanair MX300 - Manual (Page 16)

Section 3 - Chimney/Vent System
QUESTIONS?... Contact Customer Service at 1-888-370-6531 M-F 8:00 am- 4:15 pm CST
14
17. If you are unable to attain the proper draft, check for exhaust fans in the building. To test
if there is a problem, open an overhead door and see if you now have the proper draft.
You may have to add one or more sections of “Class A” chimney to the roof to get the
proper draft.
18. The heater and chimney must be installed in accordance with all state and local
codes. The heater must be installed in accordance with the specifications listed in
this manual. The chimney must be installed per the chimney manufacturer’s
instruction. Use “Class A” chimney only.
Chimney Configurations Using Top Vent ( not to scale )
Left Exhaust
Through Roof
Right Exhaust
Through Wall
Right Exhaust
Through Roof
Left Exhaust
Install Cap
On Vent
Install Cap
On Vent
Install Cap
On Vent
Install Cap
On Vent