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Heat & Glo • ST-550TM-IPI • 2142-900 Rev. S • 3/20
Table of Contents
A. Congratulations .................................2
B. Limited Lifetime Warranty.......................... 5
1 Listing and Code Approvals
A. Appliance Certication ............................7
B. Tempered Glass Specications ..................... 7
C. BTU Specications...............................7
D. High Altitude Installations ..........................7
E. Non-Combustible Materials Specication. . . . . . . . . . . . . . 7
F. Combustible Materials Specication ................. 7
G. Electrical Codes .................................7
H. California ......................................7
I. Requirements for the Commonwealth of Massachusetts.. 8
User Guide
2 Operating Instructions
A. Gas Fireplace Safety ............................. 9
B. Your Fireplace ..................................9
C. Clear Space ...................................10
D. Decorative Doors and Fronts ......................10
E. Fixed Glass Assembly ...........................10
F. Remote Controls, Wall Controls and Wall Switches..... 10
G. Before Lighting Fireplace .........................10
H. Lighting Instructions (IPI) ......................... 11
I. After Fireplace is Lit .............................12
J. Frequently Asked Questions ......................12
3 Maintenance and Service
A. Maintenance Tasks-Homeowner ...................13
B. Maintenance Tasks-Qualied Service Technician ......14
Installer Guide
4 Getting Started
A. Typical Appliance System. . . . . . . . . . . . . . . . . . . . . . . . . 16
B. Design and Installation Considerations ..............17
C. Tools and Supplies Needed .......................17
D. Inspect Appliance and Components................. 17
5 Framing and Clearances
A. Selecting Appliance Location ......................18
B. Constructing the Appliance Chase ..................19
C. Clearances .................................... 19
D. Mantel and Wall Projections and Non Combustible Zone 20
6 Termination Locations
A. Vent Termination Minimum Clearances ..............21
B. Continue Adding Vent Components .................23
C. Install Support Brackets ..........................23
7 Vent Information and Diagrams
A. Approved Pipe .................................24
B. Vent Table Key .................................24
C. Use of Elbows .................................24
D. Measuring Standards ............................24
E. Use of Flex Vent ................................25
F. Vent Diagrams .................................26
8 Vent Clearances and Framing
A. Pipe Clearances to Combustibles .................. 31
B. Wall Penetration Framing......................... 31
C. Install the Ceiling Firestop ........................32
D. Install Attic Insulation Shield....................... 32
9 Appliance Preparation
A. Securing and Leveling the Appliance ................33
10 Installing Vent Pipe
A. Assemble Vent Sections. . . . . . . . . . . . . . . . . . . . . . . . . . 34
B. Assemble Slip Sections .......................... 35
C. Secure the Vent Sections.........................35
D. Disassemble Vent Sections ....................... 36
E. Install Metal Roof Flashing........................36
F. Assemble and Install Storm Collar ..................37
G. Install Vertical Termination Cap ....................37
H. Heat Shield Requirements for Horizontal Termination ...38
I. Install Horizontal Termination Cap ..................38
11 Gas Information
A. Fuel Conversion ................................39
B. Gas Pressure ..................................39
C. Gas Connection ................................39
D. High Altitude Installations .........................39
12 Electrical Information
A. Wiring Requirements ............................ 40
B. IntelliFire®Ignition System Wiring ..................40
C. Optional Accessories Requirements ................40
D. Electrical Service and Repair ......................40
E. Junction Box Installation. . . . . . . . . . . . . . . . . . . . . . . . . . 42
Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Used to address practices not related to personal injury.
Note: The term “recommend” or “recommended” does not indicate a requirement. It is a best practice suggested by Hearth
& Home Technologies®. Failure to perform the recommended task will not result in a safety concern.