Lennox Hearth LA41TCF, LA41CF Fireplace Specifications, Front, Left Side, Top View

Page 6

Note: Safety strips are not required when fire- place rests on a noncombustible surface.

Note: Install the hearth extension only as illus- trated.

The safety strips should extend from front of the fireplace at least 1 ¹⁄₂" and should extend to be at least flush with the sides. In the event a wooden support is used to elevate the fireplace above the floor, a “Z” type safety strip should be fabricated and used to protect the front surface of the wood support as well as the floor beneath the hearth extension (Figures 8 and 9 ). The safety strips should be tacked down to prevent possible movement.

Note: The “Z” type safety strip is not supplied.

1 ¹⁄₂"

Metal Safety Strips

FIREPLACE SPECIFICATIONS

15"

(381 mm)

7¹⁄₈"

(181 mm)

41 ¹⁄₄"

(1048 mm)

25"

4 ¹⁄₈"

 

 

(635 mm)

105 mm)

 

 

 

 

 

 

 

 

 

 

 

 

49 ¹⁄₂"

(1257 mm)

Front

Fireplace Top Spacer

20"

(508 mm)

52 ³⁄₄"

(1340 mm)

7³⁄₄"

(197 mm)

6

Figure 8

Blocking

Metal Safety Strips

Figure 9

Step 3. Refer to fireplace drawings and specifi- cations on pages 6 and 7 for framing dimensions and details. Frame appliance enclosure as illus- trated in Figures 11 through 14 on page 7.

IMPORTANT: UNDER NO CIRCUMSTANCES CAN THE FIREPLACE TOP SPACERS (FIGURE 10 ) BE REMOVED OR MODIFIED, NOR MAY YOU NOTCH THE HEADER TO FIT AROUND OR BE INSTALLED LOWER THAN THE SPACERS. THE HEADER MAY BE IN DIRECT CONTACT WITH THE TOP SPACERS BUT MAY NOT BE SUPPORTED BY THEM.

 

 

7 ¹⁄₂"

 

 

Combustion

(190 mm)

52 ³⁄₄"

 

Air Inlet

 

 

 

(1340 mm)

 

 

 

 

 

Gas Line

 

Gas Line

 

Access

 

Access

39 ⁷⁄₈"

 

 

 

(1013 mm)

 

 

 

22 ⁵⁄₈"

16 ¹⁄₄"

 

 

(575 mm)

 

 

 

(413 mm)

9 ³⁄₄"

 

 

 

(248 mm)

 

26 ⁵⁄₈"

26 ¹⁄₈"

 

 

(676 mm)

(664 mm)

 

Left Side

Right Side

31¹⁄₂"

(800 mm)

9⁵⁄₈"

(244 mm)

26 ⁵⁄₈" (676 mm)

Fireplace

Top Spacer

1"

 

 

 

 

49

¹⁄₂"

 

 

(25 mm)

 

 

(1257 mm)

 

 

 

 

 

51¹⁄₂"

(1308 mm)

Top View

Figure 10

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Image 6
Contents Retain These Instructions For Future Reference Wood Burning Fireplaces P/N 504,217M REV. E 04/2007WH Report No. J20017261-231 Table of Contents Introduction Typical InstallationPrecautions Clearances and Height RequirementsChase Enclosure Assembly OutlineChimney Height Before You StartInstalling the Fireplace Assembly StepsPRE-INSTALLATION Notes ClearancesFront Fireplace SpecificationsBlocking Metal Safety Strips Left SideFraming Specifications Installing the Chimney System Chimney 30 Offset Through Floor Or Ceiling8d Nail Or Equivalent FTF8-S4 Stabilizer Roof Pitch Model Flat to 6/1212 to 12/12 FTF10 Chimney Do Not Seal Flashing Spacers FTF10 FlashingUsing a FTF10-CT2 Chase Termination Using a FTF10-CTDT Chase TerminationUsing a FTF10-CT1 Chase Termination TEN Foot Rule SummaryMultiple Terminations Special Offset InstructionsOffset Calculations FTF10 Vertical Elevation Chart FTF10 Offset Elevation Chart Installing OffsetsOptional Equipment Considerations Fireplace Finishes Glass DoorsCold Climate Insulation Mantels and TrimUsing the r formula Minimum Value per Inch Hearth Extension DimensionsUsing the k formula Minimum Methods of Determining Hearth Extension and Wall ShieldCalculating Minimum Thickness if Multiple Materials are Used Value = 1/k = r x thickness of material usedInstallation Components Finish to Your TasteMin. Distance To Round Termination 63L423 504,217M REV. E 04/2007