Installation & Operation Manual
Nat. Gas
Model #
VFLDB24L-EN
VFLDB36L-EN
VFLDB48L-EN
VFLDB60L-EN
VFLDB24B-EN
VFLDB36B-EN
VFLDB48B-EN
VFLDB60B-EN
WARNING: If the information in this
manual is not followed exactly, a fire or
explosion may result causing property
damage, personal injury, or loss of life.
— Do not store or use gasoline or oth-
er flammable vapors and liquids in the
vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas suppli-
er, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency, or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
Find a Dealer: (800) 345-7078 | Mason-Lite.com
WARNING: Improper installation, adjust-
ment, alteration, service, or maintenance
can cause injury or property damage.
Refer to this manual for correct instal-
lation and operational procedures. For
assistance or additional information con-
sult a qualified installer, service agency,
or the gas supplier.
WARNING: This appliance has been spe-
cifically tested and design certified for
installation only in a solid-fuel burning
fireplace, including factory-built UL127
fireplaces and masonry fireplaces, or in
a listed ventless firebox.
WARNING: This is an unvented gas-fired
heater. It uses air (oxygen) from the room
in which it is installed. Provisions for
adequate combustion and ventilation
air must be provided. Refer to Air for
Combustion and Ventilation section on
pages 6 through 8 of this manual.
Propane
Model #
VFLDB24L-EP
VFLDB36L-EP
VFLDB48L-EP
VFLDB60L-EP
VFLDB24B-EP
VFLDB36B-EP
VFLDB48B-EP
VFLDB60B-EP
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