Lennox Hearth RDI-36-H, HCI-36-H installation instructions Or Ceiling, For Canada Only

Note: If there is a room above ceiling level, firestop spacer must be installed on the bottom side of the ceiling. If an attic is above ceiling level, firestop spacer must be installed on top side of ceiling joist (Figures 21 and 22 ).

Room Above

Firestop Spacer

Figure 21

Attic Above

Firestop Spacer

Figure 22

CHIMNEY 30° OFFSET THROUGH FLOOR

OR CEILING

It may be necessary to assemble the chimney at 30° when passing through the floor or ceiling area. Use the F8FS30-2 firestop spacer as shown in Figures 23 and 24. Support the chimney at floor or ceiling penetration with a FTF8 stabi- lizer if distance of chimney below ceiling is 10' or more. Maintain 2" minimum air space to combustibles from chimney sections.

Attic Space
F8FS30-2	2" Min.
Firestop Spacer
	Air Space
2" Min.	FTF8-S4 Stabilizer
Air Space
10'
Max.	30° Firestop
	And Attic Above

Figure 23

Room Above
F8FS30-2	2" Min.
Firestop Spacer
	Air Space
2" Min.	FTF8-S4 Stabilizer
Air Space
10'	30° Firestop
Max.	And Room Above

Figure 24

For Canada Only

When installing the chimney system through an open attic space, the attic shield assembly- firestop spacer must be used (Figure 25 ). This installation is required only for use in Canada.

Open Attic Space

Figure 25

Note: For Canadian installations, all chimney installedoutsidethebuildingmustbeconstructed with galvalume (outer sections only) effective January 1, 1992. The appropriate model desig- nations are located in the back of this manual.

Step 4. Note: Chimney sections are con- structed with a unique locking tab design, which ensures an immediate, tight assembly between sections. Plan your chimney require- ments carefully before assembly as chimney is difficult to disassemble after installation. If disassembled, the tabs might become dam- aged. Be certain tabs are properly formed to ensure locking tabs engage properly.

The Security FTF8 chimney system is a two piece chimney, which snap together from the fireplace up. Start with the inner flue section with the lanced end up, snap lock it in to the matching collar on top of the fire- place. At all subsequent joints, the upper flue section fits into the preceding flue sec- tion. Each piece snaps together by means of locking tabs (9 locking tabs per joint). Check each piece by pulling up slightly from the top to ensure proper engagement before installing the next section.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

If the flue has been installed correctly, it will not separate when you test it. Also, the inner flue joint where each section is joined should be tight and flat without gaps (Figure 26 ).

Figure 26

Outer pipe section installs in just the opposite way; the lanced end goes down and each new section goes OVER the outside of the previous section installed (Figure 27 ).

Locking Tabs (Lances)

Figure 27

Note: Assemble one component of chimney at a time (inner section first, then outer section last) before proceeding with the next complete section.

Continue to assemble the chimney up through framed opening. Assemble just enough to pen- etrate the roof flashing openings (Figure 28 ). Always maintain 2" minimum air space to com- bustible materials and always check each chim- ney joint (inner and outer) to ensure proper engagement. Check vertical alignment of chim- ney so that it projects from the roof in true vertical position.

1"* Min. Air Space To Combustibles

Figure 28

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