Lennox Hearth HCI-42-H, RDI-42-H Roof Pitch Model Flat to 6/12, 12 to 12/12

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Note: Do not apply excessive pressure to any subsequent chimney sections following the stabilizer when installing. Ensure each subse- quent chimney section is securely attached by testing as noted in Step 4.

Step 6. Select the proper Security roof flash- ing based on pitch of roof. Use chart below for selection:

Roof Pitch

Model

 

 

Flat to 6/12

F8F6

 

 

6/12 to 12/12

F8F12

 

 

Next, slide roof flashing over extended chimney section that previously has been installed above

Step 8. Slide the FTF8 storm collar (ordered separately) over outer chimney, rest on flash- ing spacers and align with top surface of flash- ing. Insert tab in slot, pull tight and bend tab back over slot. Seal storm collar to outer chim- ney with roof caulking or mastic around entire circumference of pipe. Also add extra roof caulking to the tab/slot area to seal completely against water penetration (Figure 31 ). Check all joints very carefully to ensure no water intrusion can take place.

Locking Band

Waterproof

Step 10. Using a FTF8-CTD Round Termination:

1.Hold the FTF8-CTD over top of last chimney section (Figure 33 ).

2.Center inner slip section in inner flue pipe- slip down.

3.Center outer locking section over outer flue pipe. Push down until locking tabs are firmly engaged.

CTD

the roof opening in Step 4. FTF8 flashings require flashing spacers. Slide flashing all the way down until the flashing base rests flat on the roof (Figure 29 ). Again, check the vertical position of the chimney and the 2" minimum air space to combustibles.

Caulk

Termination

Figure 33

Chimney

10

FTF8 Chimney

Do Not Seal

Flashing Spacers

FTF8 Flashing

Figure 29

Note: Do not caulk or seal the ventilating open- ings.

Step 7. Secure flashing by nailing along the perimeter into roof using 8d nails or equivalent. If shingled roof, slide upper end and sides of roof flashing under shingles (trim if neces- sary), seal the top and both sides of the flashing to the roof with roof caulking. Cover nail heads with roof caulking (Figure 30 ).

Figure 30

Figure 31

Step 9. Security Chimneys locking bands, Model FLB, may be required if the chimney extends too high above the roof flashing. As a general rule, if the chimney extends more than 6' above the roof flashing, the use of locking bands is advisable to strengthen the chimney assembly. Align the locking band at the chim- ney joint. Locking bands wrap around pipe joints equally covering the joints of both pipe sections. Use the nut provided and TIGHTEN snugly. Do not overtighten as this might dam- age the chimney section (refer to Figure 31 ).

Note: If chimney extends more than 8' above roof surface, guy wires are also recommended. Use three (3) guy wires, attach to locking band assembly, extend and secure to roof in a trian- gular pattern (Figure 32 ). Guy wires are not supplied by the manufacturer.

Roof Ridge

120°

Figure 32

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

4.Pull up slightly on CTD to ensure locking joint has firmly engaged.

Using a FTF8-CTDT Chase Termination:

Refer to specific installation instructions in- cluded with the FTF8-CTDT chase termination for clearance and installation details.

Using a FTF8-CT1 Chase Termination:

Refer to specific installation instructions in- cluded with FTF8-CT1 chase terminations for clearance and installation details.

Using a FTF8-CT2 Chase Termination:

Refer to specific installation instructions in- cluded with FTF8-CT2 chase terminations for clearance and installation details.

Using a FTF8-CTT Chase Termination:

Refer to specific installation instructions in- cluded with FTF8-CTT chase terminations for clearance and installation details.

Using a FTF8-ATT Chase Termination:

Refer to specific installation instructions in- cluded with FTF8-ATT chase terminations for clearance and installation details.

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Contents Wood Burning Fireplaces P/N 850,047M REV. B 12/2008 Omni Report No -F-52-2Table of Contents Introduction Typical InstallationPrecautions Clearances and Height RequirementsChase Enclosure Assembly OutlineChimney Height Before You StartInstalling the Fireplace Assembly StepsPRE-INSTALLATION Notes ClearancesLeft Side Fireplace SpecificationsFront Right SideFraming Specifications 8d Nail Or Equivalent Installing the Chimney SystemFor Canadian Installations Proceed with Steps 5 through Chimney Duct Duct Collar Front Cover Plate a Plate BOpen Attic Space Or CeilingFor Canada Only FTF8-S4 StabilizerUsing a FTF8-CT1 Chase Termination Using a FTF8-CTD Round TerminationUsing a FTF8-CTDT Chase Termination Using a FTF8-CT2 Chase TerminationFTF8 Chimney Component Calculations TEN Foot Rule SummaryMultiple Terminations Special Offset InstructionsChimney Only FTF8 Vertical Elevation ChartOffset Calculations Number Of FTF8Stabilizer Offset Elevation ChartOffset HeightReturn Elbow Assembly Installing OffsetsOffset Elbow Assembly Optional Equipment ConsiderationsGas Line Connection Combustion Air KitsVent Free Appliances Fireplace Finishes Glass DoorsCold Climate Insulation Mantels and TrimTL = minimum thickness of listed material Hearth Extension DimensionsMethods of Determining Hearth Extension and Wall Shield Inches =Value = 1/k = r x thickness of material used Finish to Your TasteSum of all R values is .70 + .10 + + .10 = RM = rM x TS = 0.05 x 3/4 =Shipping Weight Installation Components188 lbs Orange, CA 850,047M REV. a 12/2008Not Provided

RDI-42-H, HCI-42-H, RDI-42, HCI-42 specifications

The Lennox Hearth series includes some of the most impressive gas fireplaces available, such as the HCI-42, RDI-42-H, HCI-42-H, and RDI-42. These models are designed to blend efficiency, style, and comfort, making them ideal for modern homes.

One of the standout features of these fireplaces is their versatile design. They come in various sizes to fit a range of spaces while offering customization options that allow homeowners to tailor their aesthetic, including various trim finishes and decorative options. The HCI-42 and RDI-42-H models are particularly noted for their seamless integration into both traditional and contemporary home decor.

The technology behind Lennox Hearth fireplaces ensures high performance and efficiency. Utilizing advanced burner technology, these models provide realistic flame patterns and a beautiful glowing ember bed, creating a captivating visual experience. The direct vent system allows for efficient heating while minimizing heat loss, making these fireplaces ideal for energy-conscious consumers. With a focus on environmentally friendly operation, these units produce fewer emissions compared to traditional wood-burning fireplaces.

User convenience is also a top priority with Lennox Hearth. Many models feature remote control functionality, allowing users to adjust heat and flame settings effortlessly. The easy-to-use thermostatic controls enable homeowners to maintain their desired comfort level without the hassle of manual adjustments. Additionally, the lightweight construction and simplified installation process make it easier for homeowners and contractors alike to set up these fireplaces.

Safety features are integral to Lennox Hearth products. These include sealed combustion systems that prevent outdoor air from entering the home and built-in safety shut-off systems to ensure peace of mind. The HCI-42 and its counterparts have been rigorously tested for safety and performance, adhering to strict industry standards.

In summary, the Lennox Hearth HCI-42, RDI-42-H, HCI-42-H, and RDI-42 bring together cutting-edge technology, beautiful design, and ease of use to offer homeowners a top-tier fireplace experience. With their efficient heating capabilities, customizable aesthetics, and emphasis on safety, these models stand out as exceptional choices for modern living spaces. Whether you are looking to enhance your home’s ambiance or increase energy efficiency, Lennox Hearth fireplaces are a smart investment for any homeowner.