Archgard I.H.E.A.T. Advantage 999-IHT-440 User manual

ARCHGARD FIREPLACE PRODUCTS
7116 Beatty Drive
Mission, BC V2V 6B4 Canada 200-0038-01
August 18, 2020
English and French Installation Manuals available through
your local dealer or visit our website at:
www.archgard.com
Les manuels d'installation en anglais et en français son
disponibles chez votre détaillant local ou en visitant notre
site web: www.archgard.com
INSTALLER:
LEAVE THIS MANUAL WITH THE APPLIANCE.
CONSUMER:
RETAIN THIS MANUAL FOR FUTURE REFERENCE.
INSTALLATION MANUAL
After removing the parts from packaging, inspect them to ensure
that no damage has occurred. Please report any damage
immediately to your authorized Archgard dealer.
Only kits supplied by the manufacturer may be used.
MODELS:
999-IHT-440 999-IHT-12B2B
999-IHT-41212 999-IHT-12B2W
999-IHT-44012 999-IHT-4FS
999-IHT-40B1B 999-IHT-4V10
999-IHT-40B1W 999-IHT-4V25
I.H.E.A.T. Advantage
Intelligent Heat Exchange
and Air Transfer
Do not store or use gasoline or other ammable vapors or
liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance
• Do not touch any electrical switch; do not use any phone in
your building
• Immediately call your gas supplier from a neighbors phone.
• Follow the gas suppliers instructions
• If you can not reach your gas supplier, call the re
department
Installation and service must be performed by a qualied
installer, service agency or the gas supplier.
WARNING: If the information in this manual is not followed
exactly, a re or explosion may result causing property
damage, personal injury or loss of life.
For installation on 345-DVTE31LN-1
(see the Installation, Operation, and
Maintenance Manual included with the
replace
IMPORTANT
Please review and understand the information in this manual in full
PRIOR to beginning your installation.

2 TABLE OF CONTENTS
1.0 Introduction 3
2.0 Safety Information 4
3.0 Technical Information 5
3.1 Certication 5
3.2 Installation Codes 5
3.3 Specications 5
4.0 Installation Checklist 6
5.0 Dimensions 7
5.1 12" x 6" Discharge Head 7
5.2 40" Discharge Head 8
5.3 I.H.E.A.T. Intake Dimensions 9
6.0 I.H.E.A.T. Kits and Accessories 10
7.0 Installation Overview 11
7.1 Planning Your Installation 11
7.2 I.H.E.A.T. Congurations 12
8.0 I.H.E.A.T. Framing 14
8.1 Fireplace Framing 14
8.2 12" Discharge Head Framing 16
8.3 40" Discharge Head Framing 17
8.4 Firestop Framing 18
8.5 Corner Installation Framing 19
9.0 Fireplace Clearances with I.H.E.A.T. 20
9.1 Mantel Clearances 20
9.2 Installing a TV or hanging Artwork 21
9.3 Ceiling and Floor Clearances 22
9.4 Clearance to Ducting 23
9.5 Adjusting for Variable Wall Thicknesses 24
9.6 Optional Hearth Installation 24
10.0 Ducting Run Guide 25
11.0 Installation 26
11.1 Installing the 12" x 6" Discharge Head 26
11.2 Installing the 40" Discharge Head 29
11.3 Second Story Installation 32
11.4 Installing a Horizontal Firestop 35
11.5 Installing a Vertical Firestop 36
11.6 Modifying the Fireplace for I.H.E.A.T. 37
12.0 Maintenance 39
12.1 Cleaning and Routine Maintenance 39

3
General Information
1.0 Introduction
Thank you and congratulations for choosing the Archgard I.H.E.A.T. Advantage.
The I.H.E.A.T. Advantage allows you to distribute heat from your Archgard replace to wherever you need it the most. It is solidly
designed using the latest technology and manufactured to the highest quality. It is our aim to provide you with a heating experience that
brings many trouble-free years of reliable service.
Some of the many features of your I.H.E.A.T. Advantage are:
• Versatility Direct the heat from your replace to where you need it the most with multiple conguration options
• Television or Art Installation This kit reduces the amount of heat directly above the replace. This allows heat sensitive objects
such as electronics or decor to be placed above the replace (see Section 9.2). It also allows a
lower mantel installation (see Section 9.1)
• Styling Options Many possible nishes to match any decor

4
General Information
2.0 Safety Information
Any alteration to the product that causes carbon or soot deposits that results in any damage or requires cleaning is not the
responsibility of the manufacturer.
Caution
FOR YOUR SAFETY - Do not install or operate your I.H.E.A.T. Advantage without reading and understanding
this manual. Any installation or operational deviation from this instruction manual voids the warranty and may
prove hazardous.
• This product must be installed by a qualied installer and the installation must conform to the installation
codes
• Provide adequate clearance around air openings into combustion chamber
• Provide adequate clearances for proper operation and servicing of the appliance and airways
• The appliance must be properly connected to an approved venting system and must not be connected to a
chimney ue serving a separate solid fuel burning appliance
• Flow of combustion and ventilation air must not be obstructed - always provide adequate combustion and
ventilation air
• Always provide adequate clearance around the intake and exhaust openings
Safety
• Due to high temperatures, the discharge head(s) should be located out of tra󰀩c and away from furniture
and draperies
• Never obstruct discharge air
• Children and adults should be alerted to the hazards of high surface temperature and stay away to avoid
burns or clothing ignition
• Young children should be carefully supervised when they are in the same room as the discharge heads.
Toddlers, young children, and others may be susceptible to accidental contact burns. A physical barrier is
recommended if there are at risk individuals in the house. To restrict access to the replace or discharge
heads, install an adjustable safety gate to keep toddlers, young children and other at risk individuals out of
the room and away from hot surfaces
• Do not store or place combustibles, gasoline, and other ammable vapors and liquids near the appliance or
discharge heads
• Clothing or other ammable material should not be placed on or near the appliance or discharge heads
• Any safety screen or guard removed for servicing must be replaced prior to operating
• Installation and Repair should be done by a qualied service person. The appliance and ducting should be
inspected before use and at least annually by a professional service person. More frequent cleaning may
be required due to excessive lint from carpeting, bedding materials, etc. It is imperative that the circulating
air passageways are kept clean

5
General Information
3.0 Technical Information
3.1 Certication
This optional kit is listed for use with the 345-DVTE31LN-1 by QAI Laboratories Inc.
Commonwealth of Massachusetts: This kit has been manufactured in accordance with Massachusetts code 248 CMR 5.00. Approval
Code: TBD. (https://licensing.reg.state.ma.us/pubLic/pl_products/pb_pre_form.asp).
Please contact Archgard Industries Ltd., if you have any questions regarding the certication of this kit.
3.2 Installation Codes
This kit must be installed by a qualied gas installer. The installation must conform with the local codes or, in the absence of local
codes, with the current National Fuel Gas Code ANSI Z223.1/ NFPA 54 in the US, or Installation Code CAN/CGA-B149.1 in Canada.
Electrical connections and grounding must conform with local code, or current National Electrical code ANSI/NFPA No. 70-1987 in the
US, and in Canada the current Canadian Electrical Code CSA C22.1.
We recommend that our gas hearth products be installed and serviced by professionals who are certied in the U.S. by the
National Fireplace Institute® (NFI) as NFI Gas Specialists.
3.3 Specications
Max Air Volume 100 CFM
Max Temperature 200⁰ F (93.3⁰C)
Max Duct Length 30' (914.4 cm)

6
General Information
4.0 Installation Checklist
This standard installation checklist is to be used by the installer in conjunction with, not instead of, the instructions contained
within this installation manual.
Customer: Date Installed:
Install Address: Location of Fireplace:
Installer:
I.H.E.A.T. Setup: YES IF NO, WHY NOT?
Do the clearances comply with those specied in this manual?
Does the framing dimensions comply with those specied in this manual?
Appliance Install: (Section 9.0) YES IF NO, WHY NOT?
Veried that the chase is insulated and sealed.
Stando󰀨s, side nailing anges, and top nailing ange extension are installed.
I.H.E.A.T. is leveled and secured.
Ducting: (Section 10.0) YES IF NO, WHY NOT?
Ducting conguration complies with diagrams in this manual.
Ducting installed and secured in place maintaining proper clearances.
Maintained 1/4" rise for every 1 ft. on horizontal run.
I.H.E.A.T. Discharge head is highest point in vent assembly.
Finishing (Section 12.0): YES IF NO, WHY NOT?
Clearances meet installation manual requirements.
Mantels and/or projections comply with install manual.
Comments:

7
Installation
5.0 Dimensions
5.1 12" x 6" Discharge Head
A
B
C
SIDE VIEW TOP VIEW
A
3.875in
3.572in
1.000in
8.216in
8.039in
8.039in
13.940in
1.000in
11.818in
11.500in
14.750in
B
8.039in
8.216in
1.000in
2.573in
4.872in
8.144in
1.515in
1.515in
9.000in
8.039in
13.940in
1.000in
11.818in
11.500in
14.750in
C
8.039in
8.216in
1.000in
2.573in
4.872in
8.144in
1.515in
1.515in
9.000in
8.039in
13.940in
1.000in
11.818in
11.500in
14.750in
Included in:
• 999-IHT-41212
• 999-IHT-44012
• 999-IHT-12B2B
• 999-IHT-12B2W
Figure 5.1.01:
14.125in
8.375in
FINISHING STRIPS
1
2

8
Installation
5.2 40" Discharge Head
SIDE VIEW TOP VIEW
A
3.875in
3.572in
1.000in
4.216in
8.069in
41.940in
8.069in
42.575in
39.325in
39.818in
1.000in
B
8.069in
6.769in
4.216in
2.573in
4.872in
1.000in
5.049in
1.617in
1.617in
41.940in
8.069in
42.575in
39.325in
39.818in
1.000in
C
8.069in
6.769in
4.216in
2.573in
4.872in
1.000in
5.049in
1.617in
1.617in
41.940in
8.069in
42.575in
39.325in
39.818in
1.000in
Included in:
• 999-IHT-440
• 999-IHT-44012
• 999-IHT-40B1B
• 999-IHT-40B1W
A
B
C
Figure 5.2.01:
42.125in
4.375in
FINISHING STRIPS
1
2

9
Installation
5.3 I.H.E.A.T. Intake Dimensions
7.600in 2.763in
13.070in
3.875in
39.220in
7.600in 2.763in
13.070in
3.875in
39.220in
SIDE VIEW
TOP VIEW
The dimensions shown below relate to the dimensions of the I.H.E.A.T. Intake only. For appliance dimensions, please see the
Installation, Operation, and Maintenance Manual included with the replace.
Figure 5.3.01:

10
Installation
6.0 I.H.E.A.T. Kits and Accessories
Kit Model Number Description
999-IHT-440 40" Long Discharge System with 4" Collars
999-IHT-41212 Two 12" x 6" Discharge System with 4" Collars
999-IHT-44012 One 40" Long Discharge and one 12" x 6" Discharge System with 4" Collars
999-IHT-40B1B 40" Bezel, Clean Design, Satin Black
999-IHT-40B1W 40" Bezel, Clean Design, White
999-IHT-12B2B One 12" Bezel, Slotted Design, Satin Black
999-IHT-12B2W One 12" Bezel, Slotted Design, White
999-IHT-4FS Two 4" Fire Stop
999-IHT-4V10 4" 2 Ply Aluminum Flex Ducting, 10' long, certied to UL1777 or UL2112, and ULC S635
999-IHT-4V25 4" 2 Ply Aluminum Flex Ducting, 25' long, certied to UL1777 or UL2112, and ULC S635
Bezel Options
999-IHT12B2B: 12" Slotted Design, Satin Black 999-IHT12B2W: 12" Slotted Design, White
999-IHT-40B1B: 40" Clean Design, Satin Black
999-IHT-40B1W: 40" Clean Design, White
Figure 6.0.01: Figure 6.0.02:
Figure 6.0.03:
Figure 6.0.04:
Note: Bezels may be painted to match decor using a high temperature paint of choice.

11
Installation
7.1 Planning Your Installation
7.0 Installation Overview
To install I.H.E.A.T. with your replace, take the following steps:
1. Pick a location for installation of the replace - be aware of tra󰀩c areas and the location of furniture
2. Choose the location(s) for the I.H.E.A.T. Discharge Head(s)
3. Install the framing according to Section 8 of this manual
4. Install the I.H.E.A.T. Discharge Head A (See Section 5.1 and Section 5.2).
5. Install any restops.
6. Install the Intake on the 345-DVTE31LN-1.
7. Install the 345-DVTE31LN-1.
8. Make sure the ducting connections are tight.
9. Install the nish strips.
10. Finish the replace according to the Installation, Operation, and Maintenance Manual included with the replace.
11. Install I.H.E.A.T. Discharge Head B (See Section 5.1 and Section 5.2). This may be adjusted to accommodate di󰀨erent wall
thicknesses or nish materials such as tile or brick.
12. Install the I.H.E.A.T. Discharge Bezel (item C, see Section 5.1 and Section 5.2).

12
Installation
7.2 I.H.E.A.T. Congurations
Figure 7.2.01: I.H.E.A.T. Cutaway view with ducting (999-IHT-440)
With I.H.E.A.T. there are many possible congurations to distribute the heat to wherever you need it the most. The following images
show a few examples of common congurations.
I
 1  4
Figure 7.2.02: I.H.E.A.T. second story heat distribution (999-IHT-44012)

13
Installation
Figure 7.2.06: I.H.E.A.T. with television and 40"
discharge head (999-IHT-440)
Figure 7.2.04: I.H.E.A.T. with dual 12" discharge
heads (999-IHT-41212)
Figure 7.2.05: I.H.E.A.T. with television and dual 12"
discharge heads (999-IHT-41212)
Figure 7.2.03: I.H.E.A.T. second storey heat distribution
with television (999-IHT-44012)

14
Installation
8.0 I.H.E.A.T. Framing
IMPORTANT
Framing dimensions should allow for wall covering thickness and replace facing materials. If using a hearth, adjust rough opening
size as necessary to maintain at least minimum clearance requirements. Non–combustible or combustible facing material may be
applied over (but not directly to) replace face. This will prevent facing material from falling o󰀨 due to heat expansion.
Do not obstruct the ow of ventilation air.
WARNING
Provide adequate clearances around air openings into the combustion chamber. Do not obstruct upper and lower grill openings.
Room air enters through lower passage, is heated and exits through upper passage. Blocking these passages may result in
overheating, creating a potentially hazardous situation.
The layout of the framing di󰀨ers from the Installation,
Operation, and Maintenance Manual included with the
replace to accommodate the ducting used when installing
I.H.E.A.T.
Determine exact position of your replace, including hearth
height, width, and depth (if applicable, see Section 9.6 of
this manual). If possible, place replace in such a manner
that vent termination will be between two studs, eliminating
the need for additional framing.
Consider height of hearth nish material (stone, brick etc.)
when building replace platform.
Install replace on hard metal or wood surface extending
the full width and depth of replace.
If masonry is to be used (optional), prepare the necessary
foundation for the masonry load. When masonry
construction is used, a lintel iron must be used over top
of replace to support the added weight. Never use this
replace to support additional weight.
38.000in
17.250in
39.750in
86.625in
Wall Board Thickness
(Nailing Flange Setting) *Framing Depth
Flush
(wall board over face of replace) 17.5"
3/8" 17.375"
1/2" 17.25"
5/8" 17.125"
3/4" 17"
Figure 8.1.01
FIRE HAZARD
DO NOT install directly on carpet, vinyl, or any
combustible material other than wood.
8.1 Fireplace Framing
*

15
Installation
I
 2  9
I
 1  2
I
 2  9
I
 1  2
Figure 8.1.02: Wallboard Flush
Figure 8.1.02: Wallboard over Fireplace Face
The replace may be recessed according to the nishing material used (see See Section 8.1). Bend the tab according to the thickness
of the wallboard being installed, then install the nishing material.
Alternatively, the replace may be covered by a combustible building material such as wood or wallboard. Bend the tabs closest to the
front of the replace for a ush look(see See Section 8.1). Note: this option is available with IHEAT ONLY.

16
Installation
8.2 12" Discharge Head Framing
195.26cm
76.875in
MIN
3.500in
3.500in
1.500in
94.30cm
37.125in
MIN
NOTE: 2"x4" Must be turned.
8.250in
3.500in
1.500in
14.000in
N 24 M  n.
Figure 8.2.01

17
Installation
8.3 40" Discharge Head Framing
205.42cm
80.875in
MIN
104.46cm
41.125in
MIN
3.500in
3.500in
1.500in
NOTE: 2"x4" Must be turned.
106.68cm
42.000in
10.80cm
4.250in
3.500in
1.500in
N 24 M  n.
Figure 8.3.01

18
Installation
8.4 Firestop Framing
21.84cm
8.600in
21.84cm
8.600in
16.76cm
6.600in
16.76cm
6.600in
Horizontal Installation
Vertical Installation
Figure 8.4.01
Figure 8.4.02

19
Installation
8.5 Corner Installation Framing
: .n
: .n
: .n
E: .2n
: .n
: .n : .n
: .n
: .n
: 2.2n
: 2.2n
.n
.n
.n
Note: See Section 8.2 and Section 8.3 for Discharge Head framing specications.
Figure 8.5.01
Dimension 3/8" Wall Board 1/2" Wall Board 5/8" Wall Board 3/4" Wall Board
A 58.375" (53-3/8") 58.5" (58-1/2") 58.625" (53-5/8") 58.75" (53-3/4")
B38"
C39.750" (39-3/4")
D36.25" (36-1/4") 36.375" (36-3/8") 36.5" (36-1/2") 36.625" (36-5/8")
E 86.625" (86-5/8")
F29.125" (29-1/8") 29.25" (26-1/4") 29.375" (26-3/8") 29.5" (29-1/2")
G 51.375" (51-3/8") 51.5" (51-1/2") 51.625" (51-5/8") 51.75" (51-3/4")
H 12.125" (12-1/8")

20
Installation
9.0 Fireplace Clearances with I.H.E.A.T.
9.1 Mantel Clearances
74.51cm
29.334in
45.72cm
18.000in
40.64cm
16.000in
30.48cm
12.000in
35.56cm
14.000in
5.08cm
2.000in
10.16cm
4.000in
15.24cm
6.000in
Figure 9.1.01
Note: Mantel clearances
are measured from
the top of the replace
opening.