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Installation Manual - L48
ENGLISH
VENTING
Information on Various Venting Routes and Components Important:
It is always best to locate the
fireplace in such a way that minimizes the number of offsets and horizontal vent length. Since it is very
important that the venting system maintain its balance between the combustion air intake and the flue
gas exhaust, certain limitations as to vent configurations apply and must be strictly adhered to.
The graph showing the relationship between vertical and horizontal side wall venting will help to determine
the various vent lengths allowable. The horizontal vent run refers to the total length of vent pipe from the flue
collar of the fireplace to the face of the outer wall. Venting termination shall not be recessed into wall or siding.
WARNING
When an existing gas fireplace heater is removed or replaced,
the original venting system may no longer be sized to properly vent
the attached appliances.
4.2 Vent Restrictor
WARNING
Use Restrictor for vertically terminated fireplace systems that are a minimum
of 10 feet vertical, and do not include offsets or horizontal vent runs.
Do not use with horizontally terminated fireplaces.
Following figures show the location and recommended opening for the flue restrictor.
4.2.1 Installation of restrictor before venting is attached.
NOTICE: When installing flue restrictor, install with screw pointing downward.
FULL OPEN
FOUR INDICATED
HOLES ALIGNED
Configuration of the restrictor for
Propane and natural gas
Full open (Four indicated holes aligned)
