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18

STR/CVR Series Woodburning Fireplaces

7412961

Example of Determining Hearth Extension 
Equivalents

To determine the thickness required for any 

new

 mate-

rial:

COMMON MATERIALS AND FACTORS

MATERIAL

K*

R

MINIMUM

THICKNESS

EH2416 

Common Brick

0.458

5.0

1.09    

0.50 in.** 

       

0.10    5.46 in.**       

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   R Value is for 

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 inch.

 * Units of K = BTU/SQ FT/HR/˚F/IN

** Thickness of Listed Material

FP533ADD

Addendum

6/1/99   djt

8/4/99 changed .2 to .1

one inch to 1/2 inch  djt

FP533AD

Fig. 25  

Hearth extension material factors.

FP719

STR/CVR finish wall treatments
5/28/98

Wall Covering

Noncombustible

Decorative

Facing

Noncombustible

Decorative

Covering

Seal all cracks 

between fireplace 

surround and wall 

materials with 

noncombustible 

material.

Seal crack 

between fireplace 

and hearth extension

with noncombustible 

material.

2x4" Header - 

Do not notch at

standoffs.

2x4"

 Stud

Safety Strips -

Must be overlapped

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" minimum.

Hearth Extension

Insulation

Side View

NOTE: 

/

"

air space

between 

Outer Dome

and 

combustible 

materials

/

"

/

"

Outer Dome

FP719

Fig. 26

  Finish wall treatments and gap sealing.

NEW 

  K of new material (per inch) 

  thickness

required  = 

  X   of listed

thickness    K of listed material (per inch)    material

Example for Common Brick

T (new) = 5.0 / 0.458 x 0.50 in. = 

5.46 in.

 (new required 

thickness).

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Majestic Safety 

Strips Must be 

Overlapped 1/2" 

Min. 

Minimum Insulation 

Value R-0.94

1/4" Min. Thickness

Combustible 

Floor

Noncombustible 

Material 7

¹⁄₂

Max. Thickness

Seal Cracks Between Fireplace and Hearth 

Extension with Noncombustible Material

Noncombustible 

Material

Lower Surround

Fireplace 

Hearth

FP1170

Fig. 27

  Hearth extension dimensions.

2”

(51 mm)

2”

(51 mm)

Maximum

14”

(356 mm)

Maximum

10”

(254 mm)

A

A

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Minimum

33”

(838 mm)

Minimum

36” (914 mm)

6”

(152 mm)

Minimum

Minimum .030 Thick Stain-

less Steel Plate

Insulation with Minimum R 

Value of 2.75

Minimum .030 

Thick Stainless 

Steel Plate

View A

NOTE:

 If noncombustible material is not used between the 

stainless steel plate and fireplace opening, the steel must 
be attached to the front of the unit a minimum of four (4) 
places on each piece with sheet metal screws no longer 
than 1/2".

NOTE: The size of the insulation and stainless steel 
plate must be within limits stated above and covers all 
combustible framing material.

Fig. 28

  Recessed installation.

FP1608

Hearth 

Extension

Hearth Extension

Noncombustible 

Material 

(if desired)

Insulation 

with Minimum 

R Value 

of 2.75

Recessed Installation - STR33/36, CVR36 Only

Содержание CVR36

Страница 1: ...replace For Models STR33 STR36 STR42 CVR36 CVR42 For use in U S Canada Underwriter s Laboratories Report No MH6018 DO NOT DISCARD THIS MANUAL Retain for future use 7412961 3 06 Rev 15 Homeowner s Inst...

Страница 2: ...eplaces replace system notwithstanding any independent testing laboratory or other third party approval of such component parts or accessory Any such action may possibly cause a re hazard Consult loca...

Страница 3: ...3 470mm 508mm 584mm D 49 49 53 1267mm 1267mm 1368mm E 52 52 56 1340mm 1340mm 1442mm F 11 11 13 279mm 279mm 343mm G 8 8 11 203mm 203mm 279mm J 26 29 35 680mm 741mm 894mm Fig 2 CVR Series speci cations...

Страница 4: ...r Standoffs Flue Damper Control Inside Flue Damper Flue Collar Outer Collar Screen Gas Line Knock out Both Sides Brick liner on Sides and Hearth Air Inlet Hearth Wood Grate Firebox Metal Safety Strips...

Страница 5: ...ace and chase parts identi cation FP704 STR from FP528 7 28 98 Termination Cap Storm Collar Pan Flashing Draftstop Finish Wall Batt Insulation cut out around restop Firestop Ceiling Level Outer Dome R...

Страница 6: ...imney exit CVR STR Series Maximum 90 0 Minimum Without Elbows 15 6 With 2 Elbows 17 6 With 4 Elbows 21 0 B Do not use more than 4 elbows per chimney Attach the straps of the return top elbow to a stru...

Страница 7: ...from the chimney to the peak of the roof is 10 3m or less the top of the chimney must be at least 2 610mm above the peak of the roof but never less than 3 914mm in height above the highest point where...

Страница 8: ...ON WHEN INSTALLING A FIREPLACE IN AN INSULATED ENCLOSURE BE SURE ALL REQUIRED AIR SPACES ARE MAINTAINED Page 14 Fig 20 Installation Chimney Supports The chimney system is supported by the replace for...

Страница 9: ...on SK8 2 wall chimney systems STR CVR42 Fireplaces use only model 11CF chimney system Straight Up Chimney Installation To locate the centerline of the ue put the replace in nal position and place a pl...

Страница 10: ...evel The following table gives restop spacer model num bers The inside dimension of the frame must be the same as the hole size selected from Figure 12 in order to provide the required air space 1 38m...

Страница 11: ...lace are noncombustible Eight 8 nailing anges are supplied with the replace found on the replace hearth To level the box and secure it rmly in place remove the nailing anges from the hearth and instal...

Страница 12: ...ngled restop spac ers provide minimum required air space to chimney pipe for ceiling thickness up to 8 203mm When combined thickness of ceiling material ceiling joists and ooring material exceeds 8 20...

Страница 13: ...In Canada an attic insulation shield is required to pre vent attic insulation from contacting the chimney sec tion Framing dimensions for the chimney hole should measure 14 x 14 368 x 368mm SK8 An att...

Страница 14: ...required in addition to Firestop Spacers Finishing CAUTION All joints between the nished wall and the replace surround top sides must be sealed with non combustible material to prevent cold air leaka...

Страница 15: ...2 12 305mm Min 12 305mm Max 6 159mm Min FP721 Fig 21 Fireplace surround ush with nished wall Mantel Clearance No Noncombustible Facing Material Finished Wall Standoff 2 x 4 Stud Noncombustible Mate r...

Страница 16: ...26 K 27 1 2 inches thick 2 CFM Corporation EH2416 K 458 1 inch thick required FP723 Fig 23 Minimum rebox dimensions from combustible materials FP723 STR CVR Side Wall clearances 6 21 98 A A B B C C C...

Страница 17: ...Fig 24 Secure the hearth extension to the oor to prevent shifting using trim molding or other similar means at three 3 outer edges Seal crack between the replace hearth and hearth extension with a non...

Страница 18: ...X of listed thickness K of listed material per inch material Example for Common Brick T new 5 0 0 458 x 0 50 in 5 46 in new required thickness Majestic Safety Strips Must be Overlapped 1 2 Min Minimum...

Страница 19: ...NOTE When installing an ANSI Z21 11 2 ventless ap pliance the fninshing material used for the mantel must be rated at 250 F or greater BTU input of a gas appliance installed in replace should be rate...

Страница 20: ...y End 7554342 7554342 5a Screen Assembly Side four per replace 7554338 7554340 5b Screen Assembly End 7554340 7554340 6 Screen Pulls four per replace 5584139 5584139 7a Firebrick Hearth 3102103 310110...

Страница 21: ...Rod Assembly two per replace 3049122 3030126 3032112 5 Screen Assembly four per replace 7554338 7554338 7554340 6 Screen Pulls four per replace 5584139 5584139 5584139 7a Firebrick Hearth 3100103 310...

Страница 22: ...ing accessories for this appliance are available from your local Majestic Fireplaces distributor Should you need additional information beyond what your distributor can furnish contact CFM Corporation...

Страница 23: ...of a square cap Adaptor required Square Termination Top housing with simulated brick pattern T20B Red Tan or Black Proper adapter must be used Includes ashing Adapter Required adapters for T20B top ho...

Страница 24: ...ical SKCS8 SK8 height and 6 of angled chimney run 11CS 11CF U S Chimney Components cont d Model Number Description Component Attic Insulation Shield Used to prevent insulation from coming in AIS SK SK...

Страница 25: ...25 STR CVR Series Woodburning Fireplaces 7412961...

Страница 26: ...26 STR CVR Series Woodburning Fireplaces 7412961...

Страница 27: ...anty is extended only to a Fireplace installed in the continental United States the state of Alaska and Canada only if and so long as the Fireplace is installed according to the installation instructi...

Страница 28: ...2695 Meadowvale Blvd Mississauga Ontario Canada L5N 8A3 800 668 5323 www cfmcorp com CFM Corporation...

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