Installation
900960-00C, 06/2019
Innovative Hearth Products
DRT3500-C Series Direct-Vent Gas Fireplaces
20
Separate and note metal side
(2) and center (1) brackets.
Step 1: Remove two screws from the top and side of the unit. Bend the side bracket securing tab
over the edge of the unit and secure. Secure bracket to the top through the clearance screw hole.
Step 1: Remove the eight (8) screws hold-
ing the top vent cover plate and gasket.
Step 2: Remove the round flue cover
from the top venting outlet.
Step 3: Remove all insulation from inner and outer
flue pipes and metal flue plug from top flue area and
replace the 8 screws that were removed in step 1.
Step 4: Remove top flue cover plate and gasket from inside the fireplace (2 screws) by first removing the lintel and baffle using three screws.
Reinstall baffle and lintel after removing the top flue cover plate. Also reinstall the two screws that held the top flue cover plate in place..
Step 2: Remove screw holding standoff to firebox, bend to
4” tall (as seen above) and attach screw.
Step 3: Install the header shield by slid-
ing it into the slot in the standoffs.
Step 4: Fireboard standoff can
be secured to the capture screw
holes.
4.
Determining Vent Setup in the Combination Venting Unit
Combination venting units are shipped with rear venting setup nearly ready for install. If this is the type of vent you require, remove the round flue
cover and remove all insulation from inner and outer flue pipes and flue plug block off from rear venting and proceed with fireplace installation.
If you require a top-vented unit, use the following steps to convert the fireplace before use.
5.
Installing Non-Combustible Front Fireboard Standoff and Header Shield
A non-combustible standoff board is provided with the fireplace to prevent overlap of drywall or other material of portions of the
fireplace that may be prone to the buildup of heat. It is supported by a middle bracket and two side brackets.
Heade
r Shiel
d
Standoffs
Screw
Header
Shield
