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37

DM 54 Chimney System: Brick Ledge Installation

FIGURE 64

 

Consult local structural engineer for proper job-spe-

cific support structure design, sizing and load bearing specifi

-

cations.

 

 

If short lengths of steel rods are used be sure to properly 

lap and wire tie all splices in the rebar. As the reinforcing pro

-

gresses, completely fill the holes with grout. Suitable grout can 

be a pourable mixture of Portland cement and sand or Portland 

cement, sand and pea gravel. The rebar must be fully embedded in 

grout.

 

Leave enough of the #4 steel reinforcing rod exposed 

above the brickledge so that as the stacking of outer casing blocks 

continues to termination the reinforcing rods and grout can con-

tinue through the stack. Reinforcing shall continue to chimney 

termination.

 

All DM 54 chimneys that include the DM 54 brickledge 

must be reinforced as described above.

CAUTION:

 When using the Isokern brickledge it is required that 

the Standard firebox/smoke dome assembly include the placement 

of a 4” by  4” by 3/8” minimum steel angle across the firebox 

opening. (See page 41 for “Structural Information” for details 

regarding specification and placement of steel angles in Standard 

fireplaces.)

Lateral Support for Isokern Brickledge Chimneys:

 

Once the DM 54 chimney and brickledge are assembled 

and after the intended masonry veneer has been installed on the 

brickledge, be sure to brace the chimney following the guidelines 

on pages 31 & 32 of this manual for Lateral Support of DM 54 

chimneys.

Содержание STANDARD 36

Страница 1: ...s use and maintenance in structions for the STANDARD Series fireplace DM 54 chimney system and Fire Lite Application with the FTF 13 Chimney System This manual must become the property of and be revie...

Страница 2: ...Clearance to Combustible Trim Concrete Support DM Chimney System General Information Component List Dimensions Component Weights Installation Lateral Support Offset Block Brick Ledge Installation Bric...

Страница 3: ...casing block and an inner liner with a fourteen inch 14 di ameter flue hole The chimney components are field assembled using Earthcore Mortar to glue the components together The DM 54 chimney system a...

Страница 4: ...ebris or other highly flammable material tossing kicking or otherwise forcing logs into the firebox STANDARD fireplace and DM 54 chimney systems are conventional indoor or outdoor fireplaces designed...

Страница 5: ...ing process In the event the home is tightly sealed and has modern energy efficient features the optional combustion air supply kits may not provide all the air required to support combustion and the...

Страница 6: ...e suitable for use with solid fuel or listed gas appliances Refer to the manufacturer s installation manual for detailed description of clearances to combustibles and all other installation informatio...

Страница 7: ...W x 65 H x 26 3 4 D 1205 lbs 42 49 25 1 4 63 1 4 31 1 2 43 1 8 33 1 4 33 20 1 4 5 52 W x 65 H x 26 3 4 D 1325 lbs 46 53 25 1 4 63 1 4 31 1 2 47 1 8 37 1 4 43 20 1 4 5 56 W x 65 H x 26 3 4 D 1450 lbs T...

Страница 8: ...1 36 2 11 42 2 Smoke Dome Large Part No Model Qty No 13 46 2 SideWall Part No Model Qty No 20 36 6 20 42 6 20 46 6 BackWalls Part No Model Qty No 25 36 3 28 42 3 31 46 3 Model A 36 26 3 4 42 32 1 4 46...

Страница 9: ...tion and vapor barriers See page 20 Notes A The STANDARD Series fireplace is rated for installation on a combustible floor system when using the Fire Lite application only See pages 47 55 for Fire Lit...

Страница 10: ...n for depth C allows for the required 1 1 2 clearance at the back of the STANDARD fireplace The following chart of dimensions is intended to aid in the positioning of an STANDARD fireplace in a corner...

Страница 11: ...the face of the entire joint as a sign of complete and proper sealing of the joint On broader contact surfaces it is advisable to apply several additional 1 2 beads of the Earthcore Mortar to the are...

Страница 12: ...alculating raised hearth height be sure to allow for the three inch 3 thick base plate plus the one and one half inch 1 1 2 thick fire brick floor in addition to the height of the platform Whether a f...

Страница 13: ...d all gaps in the assembly as necessary with the approved mortar Step 6 The STANDARD comes with an eight inch 8 thick damper beam assembly a four piece component group that is to be assembled on top o...

Страница 14: ...smoke dome components and also fit into the haunches at the ends of the front and rear smoke dome components Mortar all contact surfaces thoroughly Note The smoke dome sloping sidewalls have a bev ele...

Страница 15: ...n The sleeve passes through the firebox wall and must be connected to metal pipe by other either flexible or rigid that leads to the source for outside combustion air as directly as possible from the...

Страница 16: ...joints of one quarter inch 1 4 to three eights inch 3 8 give a good appearance to the finished brickwork however this is just a suggestion and other face joint dimensions are also acceptable Step 1 We...

Страница 17: ...the firebox and smoke dome Figure 24 Drywall can be hung on the framing members and pass across the face of the smoke dome and in contact with it If necessary the drywall can be affixed to the face o...

Страница 18: ...ury or loss of life The manufacturer is not responsible for installation and use practices that are beyond the scope of the product as defined in the product listing and in the installation manual WAR...

Страница 19: ...d directly to the front face of the Isokern fireplace unit be sure that when the required noncombustible finished facing materials are applied that no gaps or voids are left behind the finished facing...

Страница 20: ...surfaces Figure 33 When STANDARD fireplace installations are surrounded by walls that are to be insulated the walls must have enough clearance to the Isokern unit in order to maintain the three inch...

Страница 21: ...firebox front This will aid in the overall fit and finish of the STANDARD fireplace front when the code required noncombustible finished facings are applied This alignment of fire brick application a...

Страница 22: ...nish facing material set across the top of the firebox opening Figure 35 WARNING Avoid false chimneys Important Failure to seal any gaps between the front face of the STANDARD damper plate and the bac...

Страница 23: ...23 Interior Masonry Veneer Fireplace Finishes Clearances FIGURE 38 FIGURE 36 FIGURE 37...

Страница 24: ...the STANDARD firebox opening Figures 36 38 By code requirement this steel L must have a mini mum four inch 4 end bearing This bearing surface area shall be provided in the veneer work Figure 39 It is...

Страница 25: ...m the face of the fireplace shall have additional clearance from the eight inches 8 equal to the projection Combustible projecting mantles up to twelve inches 12 of projection shall not be placed less...

Страница 26: ...multi floor and back to back installations proper weight computation on an individual basis is required Consult local structural engineer for load bearing requirements Important Foundations and footin...

Страница 27: ...ever a chimney passes between one zone of a building to another Ex When the chimney passes through the ceiling into the attic area there must be a sealed area around the chim ney so there isn t a chas...

Страница 28: ...25 211 2 OFFSET 11 3 BLOCK OFFSET CASING OUTER LINER INNER LEDGE BRICK CROWN CAP LARGE CROWN CAP SMALL 12 HIGH 6 HIGH STARTER INNER LINER OFFSET BLOCK 1 3 16 3 371 2 371 2 3 1 3 16 261 4 261 4 3 311...

Страница 29: ...reinforced concrete footing and slab area may need to be provided adjacent to or as a continuation of the primary support slab area for bearing the steel or masonry support required for an offset sequ...

Страница 30: ...aligns with the flue hole in the smoke dome lid Next set the DM 54 inner liner s six inch 6 tall starter piece Figure 48 inside the first outer casing block The factory version of the six inch 6 tall...

Страница 31: ...rap or equal Starting on one side of the DM 54 chimney at four foot 4 intervals up the structural wall adjoining the chim ney connect one 18 gauage strap tie to the structural wall with two three inch...

Страница 32: ...32 DM 54 Chimney System Lateral Support cont FIGURE 51 FIGURE 52...

Страница 33: ...e interior flue alignment as each offset block is set to avoid creating overhanging ledges on the inside of the flue Such internal overhangs will inhibit flue drafting Each offset block is to be set f...

Страница 34: ...his allows for the smoke dome to sit flush with the inside face of the 2 by 6 wall and the straight chimney to run up the outside of the wall Figure 56 For a wall thickness of 9 nominal 8 CMU plus 1 1...

Страница 35: ...nce will require When establishing the far face of the overhead obstruction be sure that the DM 54 chimney blocks can run straight to chimney termination without further overhead obstruction since a s...

Страница 36: ...sion along the length of the rafter where the chimney is to penetrate the roof line will increase above 34 relative to the pitch of the roof As the DM 54 outer casing and inner liner assembly approach...

Страница 37: ...o termination the reinforcing rods and grout can con tinue through the stack Reinforcing shall continue to chimney termination All DM 54 chimneys that include the DM 54 brickledge must be reinforced a...

Страница 38: ...asonry veneer work should govern weather proofing details and the placement of flashings A typical flashing detail would be to field fabricate an aluminum or galvanized sheet metal flashing approximat...

Страница 39: ...tured stone that do not require the installation of the Isokern brickledge The small crown cap is also suitable where DM 54 chimneys are to receive a stucco finish Other chimney terminations are possi...

Страница 40: ...but does not ensure smoke free operation of the fireplace Trees buildings adjoining roof lines adverse wind conditions etc may require a taller chimney for the fireplace to draft properly Chase Enclo...

Страница 41: ...front 4 inches of the firebox side wall components The vertical leg of the angle steel lintel should turn up and sit in front of the STANDARD damper plate component Figures 72 73 Important The applica...

Страница 42: ...s Due to owner preference and architectural design criteria other chimney terminations can be used alone or in conjunction with the crown caps Special design caps may be designed and constructed by ot...

Страница 43: ...le wall with solid pack insulation 3 A combination of double wall solid pack insulation and air space triple wall 4 Triple wall air space solid fuel chimney 5 Listed chimney liners conforming with the...

Страница 44: ...s complete it is necessary to place a steel angle minimum 4 x4 x3 8 across each face of the two sided opening before building the smoke dome assembly Notch the ends of each sidewall equal to the thick...

Страница 45: ...ts chimney to rise at a thirty degree 30 angle of offset maximum angle of offset as allowed by code and bypass to one side of the firebox in the upper location there are minimum required floor to floo...

Страница 46: ...wall for the upper unit s support slab D is the outside to outside dimension of the two eight inch 8 thick bearing walls underpinning the upper unit s support slab D is also the width of the upper un...

Страница 47: ...he same as stated on page 5 of this manual Do not scale drawings Illustrations in this manual are not to scale and are intended to show typical installations Nominal dimensions are given for design an...

Страница 48: ...paneling and wood flooring Sheathing materials such as plywood particle board and drywall may cover the smoke dome front at zero inch 0 clearance All combustible sheathing materials must be held eigh...

Страница 49: ...Lite Series can be estimated Total approximate Fire Lite Series weight estimates for each Model Model 36 FP 1205 lbs items 2 thru 5 690 1895 lbs Model 42 FP 1325 lbs items 2 thru 5 690 2015 lbs Model...

Страница 50: ...platform The safety strips must extend out from the front of the raised platform at least two inches 2 and must extend to at least two inches 2 beyond the ends of the raised platform Any overlaps in...

Страница 51: ...Fire Lite Application Raised Metal Platform cont FIGURE 93 Floor Joists 14GA Metal Chanel with a 3 Dia Hole Centered in each 12 Cavity 1 Thick Insboard onWood Sub Floor Air From Exterior Air From Roo...

Страница 52: ...can be placed directly in contact with the front of the firebox and smoke dome Figure 94 Drywall can be hung on the framing members and pass across the face of the smoke dome and in contact with it If...

Страница 53: ...um required clearances to combustible materials and do not violate any specific installation requirements WARNING Failure to use manufacture s provided parts variations in techniques and construction...

Страница 54: ...in the top plate The high temperature blanket is held between the anchor plate and the top plate as a gasket Figure 99 Attach Anchor Plate to the top plate with masonry attachment screws through holes...

Страница 55: ...55 FTF 13 Installation Components Round Termination FireStop Spacer Chimney Section Stabilizer Locking Band Anchor Plate Combination Offset Return Elbow FireStop Spacer 30 Offset Return Package 30...

Страница 56: ...the first fire The second fire should be the same as the first fire The second fire should burn for no more than thirty to sixty minutes and allowed to go out Do not refuel the fireplace during the s...

Страница 57: ...ting season in colder climates thoroughly inspect the Fire Lite fireplace and chimney system Chimneys must be installed so that access is provided for inspection and cleaning The chimney should be ins...

Страница 58: ...Notes 58...

Страница 59: ...hereof is not responsible for any labor costs or indirect costs incurred for the replacement of defective components ISOKERN is not responsible for misuse or mishandling of components Nothing in this...

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