Installation
900414-00 12/2015
Innovative Hearth Products
MHD 35/40 Series Direct-Vent Gas Fireplaces
16
INSTALLATION SEQUENCE
The typical sequence of installation is outlined below; however, each installation is unique and may result in
variations to the steps described.
See the pages referenced in the following steps for detailed instructions.
Framing
1. Construct the Fireplace Framing
(
Page 16
)
.
2. Prepare the Fireplace Top Spacers
(
Page 18
)
.
3. Route the Gas Supply Line to the Fireplace
(
Page 18
)
.
4. Determining Vent Setup in the Combination Venting Unit
(
Page 19
)
.
5. Installing Metal, Non-Combustible Front Standoff
(
Page 19
)
.
6. Rough in the Electrical Supply, if Needed
(
Page 20
)
.
7. Install the [Optional] Blower Kit before Installation in the Framing
(
Page 20
)
.
Venting
8. Place the Fireplace in the Framing and Secure
(
Page 20
)
.
9. Select a Horizontal or Vertical Vent System
(
Page 20
)
.
10. Install the Vent Restrictor (if necessary)
(
Page 21
)
.
11. Install the Vent System
(
Page 24
)
.
Electrical Connection
12. Complete the Field Wiring
(
Page 37
)
.
13. Confirm Operation of Blower Kit
(
Page 38
)
.
Gas Connection
14. Connect the Gas Line
(
Page 39
)
.
15. Verify Proper Fireplace Operation
(
Page 40
)
.
Finishing
16. Firebox Liner
17. Install the Logs, Volcanic Stone, and Glowing Embers
(
Page 41
)
.
18. Install the Glass Door
(
Page 41
)
.
19 Adjust the Air Shutter to Ensure Proper Flame Appearance
(
Page 41
)
.
20. Install the Hood
(
Page 42
)
.
21. Reinstall the Included Barrier
(
Page 42
)
.
22. Install the Finishing Materials
(
Page 43
)
.
23. Attach the Safety-in-Operation Warning Labels
(
Page 43
)
.
24. Installing Batteries in Remote Receiver and Transmitter
(
Page 43
)
.
1.
Construct the Fireplace Framing
1.
Frame the fireplace as illustrated in
Table 10
. For corner framing installations, use
Table 11
. All framing details
must allow for a minimum clearance to combustible framing members as shown in
Table 8
.
2.
If the fireplace is to be elevated above floor level, a solid continuous platform must be constructed below the fireplace.
NOTE:
Headers may be in direct contact with the fireplace top standoff spacers when they are bent up vertically,
maintaining the 4” clearance to the fireplace top, but must not be supported by them or notched to fit around them.
All construction above the fireplace must be self-supporting. DO NOT use the fireplace for structural support.
