Note: The framed depth, 28 ¹⁄₈" (714 mm) from a framed wall, must always be measured from a finished surface. If a wall covering such as drywall is to be attached to the rear wall, then the framed depth must be measured from the drywall surface. It is important that this dimen- sion be exact.

If the appliance is to be elevated above floor level, a solid continuous platform must be constructed.

The header may rest on the top metal spacers, but must not be notched to fit around them.

Consult all local codes.

FRAMING SPECIFICATIONS

Framing Dimensions

 

Model LA41

 

 

 

A

50 ¹⁄₂"

1283 mm

 

 

 

B

53"

1346 mm

 

 

 

C

34 ⁵⁄₁₆"

873 mm

 

 

 

D

19 ¹⁄₈"

486 mm

 

 

 

E

90 ¹⁄₄"

2292 mm

 

 

 

F

45 ¹⁄₈"

1146 mm

 

 

 

G

28 ¹⁄₈"

714 mm

 

 

 

H

48 ³⁄₈"

1228 mm

 

 

 

J

26 ¹⁄₈"

664 mm

 

 

 

K

63 ¹¹⁄₁₆"

1622 mm

 

 

 

Back Wall of Chase/Enclosure

FOAK

Including Finising Materials

Combustion

if any

Air Kit - Optional

H

G

 

A

 

Rough

Framing Face

Outside Chase

(Unfinished Shown)

Figure 13

 

Back Wall of

FOAK Combustion

Chase/Enclosure

Air Kit - Optional

Including Finising

Materials

 

if any

 

 

D

Note: All framing dimensions calculated for 1/2" dry wall at the fireplace face. If sheathing the chase or finishing with other thickness materials, calculations will need to be made. False header

KF

Header

should be constructed of 2 x material only.

Rough

A

E

False

Header

B

H

A

Fireplace Framing

Figure 11

Framing Dimensions for Ceiling

Flue Type

A

B

 

 

 

FTF10 Vertical

19"

19"

 

(483 mm)

(483 mm)

 

 

 

FTF10

19"

29"

Offset 30°

(483 mm)

(737 mm)

 

 

 

Framing Dimensions for Roof

Framing Face (Unfinished Shown)

Figure 14

B

Figure 15

Corner Installation

A

Ceiling Framing

Back Wall of Chase/Enclosure

Including Finising Materials if any

A

Inside Chase

Figure 12

FOAK

Combustion

Air Kit

G

Rough

Framing Face

(Unfinished

Shown)

Pitch

C

D*

 

 

 

0/12

19"

19"

 

(483 mm)

(483 mm)

 

 

 

6/12

19"

22"

 

(483 mm)

(559 mm)

 

 

 

12/12

19"

27"

 

(483 mm)

(686 mm)

 

 

 

* Perpendicular to roof ridge

D

C

Roof Framing

Figure 16

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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Lennox Hearth LA41CF, LA41TCF installation instructions Framing Specifications