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33-1/2"

29-5/8"

(753mm)

2 x 4's

2 x 4

Header

2 x 4

2 x 4

14-1/2"

(368mm)

33-1/2"

MINIMUM FRAMING DIMENSIONS

FLUE SYSTEM

7” Coaxial Direct Vent System

SPECIFICATIONS:

• 7” O.D.
• 4” I.D.

MINIMUM CLEARANCE TO COMBUSTIBLE MATERIAL

a)  Vertical Side Wall Applications 

1” to All Sides

b)  Vertical thru the Roof Applications  1” to All Sides

MINIMUM COMBUSTIBLE WALL/FLOOR OPENINGS

MAXIMUM INSTALLATION LENGTHS

 

a)  Vertical Side Wall Applications 

 

 

36” (914 mm) Horizontal Vent Length with 90°

 

 

elbow installed directly on top of the unit 

  20

ʼ

 (6 m) Horizontal Vent Length with

  7.5

ʼ

 (2.29 m) vertical rise

*Refer to manual for alternative venting distance

*Maximum angular variation for Vertical Sidewall/Vertical 

Application in system is total of 270°

*Refer to installation manual for all venting restrictions 

with elbow use

TERMINATION CLEARANCES MINIMUM

a) Horizontal 

 

   12” (305 mm) above Grade Level

 

   18” (458 mm) to Ventilated Sof

fi

 t

 

   12” (305 mm) to Unventilated Sof

fi

 t

 

   12” (305 mm) under veranda, porch, 

 

         deck or balcony

b) Vertical 
 

   24” (610 mm) Above a Roof Surface and any other 

 

        obstruction within a horizontal distance 

 

        of 18” (458 mm)

33LDVT ANSI Z21.88 - 2005/CSA 2.33 2005
Vented Gas Fireplace Heaters

This gas appliance should be installed by quali

fi

 ed installers 

in accordance with local building codes and the current 
National Fuel Gas code ANSI Z223.1 or CSA B 149.1 
Installation code for Gas Burning Appliance and Equipment.

PRODUCT LISTING

            OPTIONAL ACCESSORIES (Continued):

              (Trim Kits continued from second page)

WALL FRAMING DIMENSIONS

Vent Opening for 
Combustible Wall

• Louver Kits

 - Additional Louver Kits ( To replace all louvers in 

desired color, 4 sets are required ) See Price List

• Filligree Louver Kits

 - See Price List

• Perimeter Trim Kits

 - See Price List

• Face Trim Kits

 - See Price List

Framing Detail

9

³⁄₈

"

(240 mm)

9

³⁄₈

"

(240 mm)

VO584-100

Fireplace Hearth

Rnd.

7

¹⁄₂

" Dia.

(190 mm)

Opening for Non-combustible Wall

a)  9 3/8” W x 9 3/8” H for Vertical Side Wall/Vertical 
      Applications

VERTICAL THRU THE ROOF APPLICATIONS

 

 

• 

8

ʼ

 (2.4 m) Minimum Vertical Rise

• 

40

ʼ

 (12 m) Maximum Vertical Rise

• 

2 sets of 45° Elbows can be used in Vertical 

   

rise with 8

ʼ

 maximum distance between elbows

• 

Two 90° elbows maximum for 10

ʼ

 (3 m)  

   Horizontal can be installed in Vertical Applications

*Refer to installation manual for more termination  
  restrictions

(851mm)

(851mm)

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