12 Accessories
A. Gas Log/Lighter Provision
WARNING! Fire and/or Asphyxiation Risk! Use with solid wood fuel or decorative gas appliance only. Gas fire generates fumes.
•DO NOT install unvented gas logs
•Damper must be locked fully open when gas logs are installed
A certified gas log lighter or decorative gas log set can be installed in this fireplace.
•Maximum input is 100,000 BTU/hr.
•Decorative gas appliance must be certified to ANSI Z21.60 “Standard for Decorative Gas Appliances for Installation in Vented Fireplaces”.
•Must be installed in accordance with the National Fuel
Gas Code, ANSI Z223.1.
•A gas log set must incorporate a gas shutoff.
•Gas Log set requires the damper to be locked fully open.
•A listed automatic damper system with safety interlock may be used in this fireplace with only compatible, listed gas log sets. See damper system manufacturer’s insturctions.
•Knockouts are provided on both sides of the fireplace and in refractories for 1/2 in. (13 mm) iron pipe.
•Seal refractory around pipe with fireplace mortar or a
B. Wood Burning Inserts
WARNING! Risk of Fire! Improper installation of wood in- serts may cause fireplace or chimney system to overheat.
If a wood burning insert is being installed in this fireplace, Hearth & Home Technologies recommends full reline of the chimney.
•Cooling air openings at the top of the chimney must not be obstructed in any manner.
•Hearth & Home Technologies recommends securing the reline at the top of the flue and using the cap certified for use with this fireplace system.
Firebox
Refractory 
Seal with 
fireplace mortar 
or 
ible sealant 
Outer Shell
of Fireplace
Maintain air clearance 
to combustibles.
Combustible
Materials
Gas Line 
Repack
Insulation
Knockout
Gas Line
4 in. 
(102 mm)
1 1/2 in. (38 mm) 
air space around
pipe
Combustible materials may be located at zero clearance to gas line beyond 4 in. (102 mm) from fireplace side.
Figure 12.1 Gas Line Installation
42 | Heatilator • ST36D • 20396 • Rev AA • 11/08 |