
2 Getting Started
A. Design and Installation Considerations
Heat & Glo direct vent gas appliances are designed to
operate 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, fire officials 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 configuration to be used.
Gas supply piping.
Electrical wiring requirements.
Framing and finishing details.
Whether optional accessories—devices such as a
wall switch or remote control—are desired.
Installation and service of this appliance should be
performed by qualified personnel. Hearth & Home
Technologies suggests NFI certified or factory
trained professionals, ortechnicians supervised by
anNFIcertifiedprofessional(www.nficertified.org).
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a qualified
service technician, service agency or your dealer.
B. 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. (6 mm)
magnetic)
Plumb line Safety glasses
Level Reciprocating saw
Manometer Flat blade screwdriver
1/2 - 3/4 in.(13-19 mm) length, #6 or #8 Self-
drilling screws
Caulking material (300 °F (149 °C) minimum continuous
exposure rating)
C. Inspect Appliance and Components
Carefully remove the appliance and components
from the packaging.
The vent system components and decorative doors
and fronts may be shipped in separate packages.
If packaged separately, the media, refractory,
and/or optional log kits must be installed.
Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
Read all of the instructions before starting the instal-
lation. Follow these instructions carefully during the
installation toensuremaximumsafetyandbenefit.
WARNING! Risk of Fire or Explosion! Damaged parts
could impair safe operation. DO NOT install damaged, in-
complete or substitute components. Keep appliance dry.
Hearth & Home Technologies disclaims any responsibility
for, and thewarranty willbe voidedby, thefollowing actions:
Installation and use of any damaged appliance or
vent system component.
Modification of the appliance or vent system.
Installation other than as instructed by Hearth &
Home Technologies.
Improper positioning of the gas logs or the glass door.
Installationand/oruse of any component partnot approved
by Hearth&HomeTechnologies.
Any such action may cause a fire hazard.
WARNING! Risk of Fire, Explosion or Electric Shock!
DO NOT use this appliance if any part has been under
water. Call a qualified service technician to inspect the
appliance and to replace any part of the control system
and/or gas control which has been under water.
Heat & Glo • MEZZO-1000-AU, MEZZO-1300-AU, MEZZO-1300ST-AU, MEZZO-1600-AU Installation Manual • 2304-970 Rev. D • 3/15
6