Heatilator • GDST4336I, GDFL4136I, GDCR4136I, GDCL4136I • 2129-900 Rev. W • 12/15
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B. Design and Installation Considerations
Heatilator direct vent gas appliances are designed to op-
erate with all combustion air siphoned from outside of the
building and all exhaust gases expelled to the outside. No
additional outside air source is required.
Installation MUST comply with local, regional, state and
national codes and regulations. Consult insurance carrier,
local building inspector,
fi
re of
fi
cials or authorities having
jurisdiction over restrictions, installation inspection and
permits.
Before installing, determine the following:
• Where the appliance is to be installed.
• The vent system con
fi
guration to be used.
• Gas supply piping requirements.
• Electrical wiring requirements.
• Framing and
fi
nishing details.
• Whether optional accessories—devices such as a fan,
wall switch, or remote control—are desired.
C. Tools and Supplies Needed
Before beginning the installation be sure that the following
tools and building supplies are available.
Tape measure
Framing material
Pliers
Non-corrosive leak check solution
Hammer Phillips
screwdriver
Gloves Framing
square
Voltmeter
Electric drill and bits (1/4 in.)
Plumb line
Safety glasses
Level Reciprocating
saw
Manometer
Flat blade screwdriver
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws
Caulk (minimum of 300ºF continuous exposure rating)
One 1/4 in. female connection (for optional fan).
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a quali
fi
ed
service technician, service agency or your dealer.
Installation and service of this
appliance should be performed by
quali
fi
ed personnel. Hearth & Home
Technologies recommends HHT
Factory Trained or NFI certified
professionals.