710530
GCUF cover
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.
WARNINGS
– Do not store or use gasoline or other
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 supplier,
call the fire department.
– Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
For use with a listed gas-fired unvented
decorative room heater not to exceed
40,000 BTU/hr.
Do Not Build a Wood Fire.
Carefully review the instructions supplied
with the decorative type unvented room
heater for the minimum fireplace size
requirement.
DO NOT INSTALL AN APPLIANCE IN THIS
FIREBOX UNLESS THIS FIREBOX MEETS
THE MINIMUM DIMENSIONS REQUIRED
FOR THE INSTALLATION.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
Unvented Fireboxes
Installation and Operating Instructions
Models: GCUF, GRUF
Monessen • GCUF/GRUF Owner Manual • 71D0530 • Rev F • 05/19