Lennox Hearth C42 - Manual (Page 3)

3
CONGRATULATIONS ON THE PURCHASE OF YOUR NEW
GAS APPLIANCE MANUFACTURED BY LENNOX HEARTH
PRODUCTS.
When you purchased your new gas fireplace, you joined the ranks of
thousands of individuals whose answer to their home heating needs
reflects their concern for efficiency and our environment. We extend
our continued support to help you achieve the maximum benefit and
enjoyment available from your new gas fireplace. It is our goal at Lennox
Hearth Products to provide you, our valued customer, with an appliance
that will ensure years of trouble-free warmth and pleasure.
Thank you for selecting a Lennox Hearth Products gas fireplace as the
answer to your supplemental home heating needs.
Sincerely, All of us at Lennox Hearth Products
TABLE OF CONTENTS
Cautions and Safety ........................................................ 
Orifice Size/Altitude Adjustment .......................................... 4
Codes and Approvals ....................................................... 5
New York City, New York (MEA) .......................................... 5
Commonwealth of Massachusetts Requirements ...................... 5
Pre-Installation............................................................ 6-7
Features ............................................................ 6
Venting .............................................................. 6
Fuel.................................................................. 6
Packaging List ..................................................... 6
Specifications ...................................................... 6
Preparing your Fireplace for Installation ......................... 7
Clearances to Combustibles ..................................... 7
Installation ............................................................... 8-13
Framing Dimensions ............................................. 8
Fireplace Dimensions ............................................ 9
Raised Installations ............................................. 10
Hearth Extension Considerations .............................. 10
Facing Installation Considerations ............................ 11
Face Installation ................................................. 13
Vent Installation ....................................................... 14-0
Application ........................................................ 14
Vent Parts List .................................................... 15
Vent Considerations ............................................. 16
Horizontal Vent Installation ..................................... 17
Vertical Vent Installation ........................................ 17
Flue Restrictors .................................................. 18
Vertical Vent Termination Clearances ........................ 18
Horizontal Terminations ......................................... 19
Vertical Terminations ............................................ 19
Horizontal Vent Termination Clearances ..................... 0
Brick Panel and Log Set Installation .................................... 1
Electrical Connections .................................................... 
Gas Line Installation ...................................................... 3
Gas Pressure Requirements .................................... 3
LP and Natural Gas Supplies ................................... 3
Increasing Efficiency And Hot Air Movement .......................... 4
Forced Air Heating Installation ...................................... 5-8
Operating Instructions ................................................ 9-3
Pre-Lighting Checklist ........................................... 9
Lighting Instructions ............................................. 9
Flame Color and Behavior ...................................... 30
Air Shutter Adjustment .......................................... 31
Paint Curing ....................................................... 31
Quiet Operation ................................................... 31
Blower Operation ................................................. 31
Optional Wall Thermostat ....................................... 31
Operating Options ................................................ 3
Millivolt Control System ........................................ 3
Maintenance and Servicing .......................................... 33-34
Maintenance Checklist .......................................... 33
Vent Pipe Maintenance .......................................... 33
Opening and Removing Door ................................... 34
Glass/Door Maintenance ........................................ 34
Blower Removal .................................................. 34
Fuel Conversion .................................................. 34
Troubleshooting ............................................................ 35
Replacement Parts ........................................................ 36
Accessories ............................................................. 36-37
Fireplace Labels ....................................................... 38-39
Product Reference Information .......................................... 40
USING THIS MANUAL
Please read and carefully follow all of the instructions found in this
manual. Please pay special attention to the safety instructions provided
in this manual.
PRODUCT IS SUBJECT TO CHANGE WITHOUT NOTICE