NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
HEARTH PRODUCTS
KITS AND ACCESSORIES
750206M
REV. B 05/2017
TOOLS / SUPPLIES REQUIRED
• 5/16” Nut driver or Socket • Duct Tape • Silicon Type Caulking
GENERAL INFORMATION
This kit is for use with various IHP vent-free fi reboxes when installed in
conventional construction. These kits have an air gate assembly which allows
adjustment of the amount of outside air delivered to the fi re for combustion.
Only one air kit, located on the right side of the fi rebox, is required.
READ ALL THE STEPS BEFORE STARTING THE INSTALLATION
THE FIREPLACE MUST BE OFF AND COLD BEFORE BEGINNING.
ALL WARNINGS, PRECAUTIONS AND INSTRUCTIONS IN THE
INSTALLATION AND OPERATION MANUAL PROVIDED WITH THE
APPLIANCE APPLY TO THESE INSTRUCTIONS.
If you encounter any problems, need clarifi cation of these instructions
or are not qualifi ed to properly install this kit, contact you local distribu-
tor or dealer.
If any of these parts are missing or damaged, contact your dealer or IHP.
us.com for referral information.
Retain These Instructions for Future Reference
INSTALLATION INSTRUCTIONS
1
. Remove the outside air knock-out on the right hand side of appliance
(See
Figure 2
for location).
2
. Assemble the Air Gate as shown in
Figures 3 and 4.
3
. Take the Air Gate Assembly and feed the arm through the round opening
(see
Figures 5 and 6
)
and then through the side frame opening. Ensure
the air gate arm remains attached to the air gate
(see
Figure 7
).
Figure 1 - Kit Contents
(see Table 1)
1
1
6
5
1
7
4
2
3
Remove Outside
Air Knock-Out
Right Hand Side
of Firebox
Figure 2
Side View of Arm
installed into Air
Gate.
Air Gate Assembly
Air Gate Arm
Figure 3
When assembled onto appliance, the notch
here must be positioned down as shown.
Outside View of
Arm installed
into Air Gate.
Air Gate Arm
Air Gate
Figure 4
WARNING
Do not operate the combustion air gate with a fi re in the fi rebox
unless all components of this kit have been installed.
Air Gate Arm
Figure 5
Right Side
Panel on
Firebox
Air Gate
US
Outside Air Gate & Duct Kit
Cat. No.
Model
Description
H3991
OAK-UVFRC Outside Air Gate & Duct Kit
KIT CONTENTS
1 ea. Air Gate Assembly (1)
1 ea. Arm, Air Gate (2)
1 ea. Bracket, Air Gate Arm (3)
1 ea. Collar, Outside Air (4)
1 ea. Duct, 4” (5)
1 ea. Hardware Kit (9 long screws & 4 short screws) (6)
1 ea. Instruction Sheet (7)
OAK-UVFRC OUTSIDE
AIR GATE & DUCT KIT
OAK-UVFRC OUTSIDE AIR GATE & DUCT KIT
[FOR USE WITH MODELS ATLAS36/42, ORION32/36/42, VRT2536/42, VRT3132/36/42, VRT3536/42, AND VARIOUS LHP LEGACY APPLIANCES]
f i r e - p a r t s . c o m
