Heatilator NA36 Installation & Operating Instructions Manual page 19

  woodburning fireplace
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NA SERIES INSTALLATION INSTRUCTIONS
WARNING!
Note:
A BC10 motor speed control kit is available for
use with this fan kit. Refer to the instructions packed with
it for proper installation. If a speed control option is
desired, it is recommended that you use the BC10 kit to
ensure proper function.
16. Completion of the Enclosure
Complete the fireplace enclosure, allowing space for
outside air ducts and gas piping if desired. Electrical
wiring should not come in contact with the fireplace.
pages 10-12 for framing details.
Note:
Use only a noncombustible material to finish
the face of the fireplace below the level of the front
standoffs. A noncombustible material such as USG
MICORE CV230 Mineral Fiber Board, or USG
DUROCK Cement Board is recommended for this
purpose.
CAUTION:
17. Gas Log/Lighter Provisions
Knockouts are provided on both sides of the fireplace
to allow for connection of a certified gas log lighter or
a decorative gas appliance with a maximum input of
100,000 BTU/hour, incorporating an automatic gas
shut-off device and complying with the
appliance should be installed in accordance with the
07/03
See
. The decorative gas
.
17789 Rev H
The side refractories are designed to allow ½” iron pipe
to pass through. Use a noncombustible sealant to seal
any opening between the gas pipe and refractory on
the inside. Repack the insulation removed to seal
around the gas pipe where it exits the side of the
fireplace. A minimum 1½” air clearance must be
provided around the ½” iron pipe for a minimum of 4
inches beyond the fireplace. See Figure 16.
WARNING!
CLEARANCES!
19

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