Installation
900683-01F, 10/2018
Innovative Hearth Products
DRT3500 Series Direct-Vent Gas Fireplaces
20
Step 1: Remove the eight (8) screws
holding the top vent cover plate and
gasket.
Step 4: Make sure insulation disc is
still in the round cover. Remove the
flue plug from the top flue.
Step 5: Bend tabs out on round flue cover. Secure the round flue cover (provided) to
the wrapper over the rear venting outlet. Use two (2) 3/4” long sheet metal screws
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 screwhole.
Step 2: Remove the three screws that align with the clearance
screw holes from the top of the unit. Secure the center bracket
to the top center of the fireplace
Step 3: Top of front fireboard
standoff should be flush with
top standoffs (not shown).
Step 4: Fireboard standoff
can be secured to the cap-
ture screwholes.
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
all insulation packing 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.
Step 2: Remove the round flue
cover from the top venting outlet.
Step 3: Remove insulation from
inside flue pipe.
5.
Installing Non-Combustible Front Fireboard Standoff
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.
