C. important information – Hearth and Home Technologies FI42SL User Manual
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33734 Rev K
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C. Important Information
Installer: Please leave these instructions with the owner.
Owner: Please retain these instructions for future reference.
Important: Read these instructions carefully before making installation.
• This appliance must be installed only in a solid-fuel burning (woodburning) fi replace with a working fl ue and
constructed of noncombustible materials.
• The appliance area must be kept clear and free from combustible materials, gasoline and other fl ammable
vapors and liquids.
• A fi replace screen must be in place when the log set is burning and, unless other provisions for combustion
air are provided, the screen shall have an opening(s) for introduction of combustion air.
• Installation and the provisions for combustion and ventilation air must conform with the latest edition of the
National Fuel Gas Code ANSI Z223.1 or in Canada, the current CAN/CGA-B149.1 and B149.2.
• Inlet and outlet taps are provided on the gas control (M Series) for a test gauge connection. Replace the plug
after the test.
• The appliance and its manual shutoff valve must be disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in excess of 1/2 PSIG.
• The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply pipe system at test pressure equal to or less than 1/2
PSIG.
• The minimum size fi replace in which the log set can be installed and the minimum permanent free opening
that must be provided by either the fi replace chimney or chimney damper to vent the fl ue gases must be in
accordance with the tables in Figure 1.
• Any chimney damper must be fi xed so that the minimum permanent vent opening will be maintained at all
times (by screw, bolt at damper edge, or hole in damper.)
• Solid fuel shall not be burned in a fi replace where a decorative gas appliance is installed.
1. High Altitude Installation
For U.S. installation, appliances are tested and approved for elevations from 0-2000 feet. When installing this Imperial
Gas Log Set at an elevation above 2000 feet, National Fuel Gas Codes require a decrease of the input rating by changing
the existing burner orifi ce to a smaller size. Input should be reduced 4% for each 1000 feet above sea level. Check with
the local gas utility for proper orifi ce size identifi cation. The current orifi ce is available from your Heatilator distributor.
For Canada, appliances are certifi ed for elevations from 0-4500 feet. When installing this Imperial Gas Log Set at an
elevation between 0-4500 feet in Canada, the input rating does not need to be reduced. When installing this log set at an
elevation above 4500 feet in Canada, check with local authorities.
2. Minimum Dimensions
Figure 1
Minimum Firebox Dimensions
Minimum Permanent Free Opening
Set Size Depth Height Front Opening
Chimney Ht. (ft)
36 in.
42 in.
36 in.
13 in.
16 in.
30 in.
10 ft
40 sq in.
40 sq in.
42 in.
13 in.
16 in.
34 in.