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B36LA8 & B36RA8 Woodburning Fireplaces

FIREPLACE OPERATION

A Few Words of Caution

Beware  of  burning  certain  material  in  your  fireplace.  
Among  these  are  plastics,  poison  ivy  twigs  and  stems, 
and  chemically  treated  woods  such  as  discarded  poles 
and railroad ties.  These not only create air pollution, but 
can induce extreme irritation for some individuals.
Use hemlock, spruce, juniper and other resinous woods 
with caution.  They contain moisture pockets which, upon 
heating, “pop” with considerable vigor.
Always use a fire screen.  And always “bank” a fire, or at 
least push all unburned fuel to the rear of the grate before 
leaving a fire unattended.  Do not use this fireplace as an 
incinerator.
Because  the  termination  of  the  chimney  above  the  roof 
is  exposed  to  wind  and  cold  and  the  pressure  changes 
these and other environmental conditions may cause, a 
sufficient chimney draft may be hard to establish at times.  
At  other  times  the  draft  may  be  sufficiently  disrupted  to 
cause smoke to spill from the fireplace opening.  If prob-
lems  with  chimney  draft  occur,  help  start  chimney  draft 
before you build a fire by holding a piece of burning paper 
near the flue opening at the top of the firebox to preheat 
the chimney.  If smoke spills from the fireplace opening af-
ter the fire is burning, open a window on the up wind side 
of the house that is far enough away form the fireplace 
that the wind will not blow across the fireplace opening, 
push the burning wood as near the back of the fireplace 
as  possible,  and  if  the  fireplace  is  equipped  with  glass 
doors, close them.
DO NOT LEAVE CHILDREN OR PHYSICALLY OR 
MENTALLY HANDICAPPED, OR SENILE PERSONS 
ALONE WITH A BURNING FIREPLACE.

Fuel Storage

Wood  can  be  dried  sufficiently  for  burning  within  a  few 
weeks if protected form rain in a low humidity area.  It is 
far better to cut wood and allow it to dry for a year.  In all 
cases, the wood should be stacked so that both ends of 
the sticks are exposed to the air and protected from rain.  
The drier the wood, the more usable heat produced by the 
fire and less likely rapid accumulation of soot and creo-
sote within the chimney is to occur.  See the section of this 
manual concerning chimney maintenance for information 
concerning the hazards of soot a creosote accumulation.  
Small quantities of wood required for fire tending must be 
kept at least 30 inches from the fireplace.

Disposal Of Ashes

Ashes should be placed in a metal container with a tight 
fitting lid.  The closed container of ashes should be placed 
on  a  noncombustible  floor  or  on  the  ground  well  away 
from all combustible materials pending final disposal.  If 
the  ashes  are  disposed  of  by  burial  in  soil  or  otherwise 
locally  dispersed,  they  should  be  retained  in  the  closed 

container  until  all  cinder  has  thoroughly  cooled.   Ashes 
should  never  be  placed  in  a  container  with  combustible 
materials.

Chimney Maintenance

Creosote, Formation and Need for Removal:  When wood 
is burned slowly, it produces tar and other organic vapors, 
which combine with expelled moisture to form creosote.  
The creosote vapors condense in the relatively cool chim-
ney flue of a slow-burning fire.  As a result, creosote resi-
due  accumulates  on  the  flue  lining.    When  ignited,  this 
creosote makes an extremely hot fire.
The  chimney  should  be  inspected  at  least  twice  a  year 
during  the  heating  season  to  determine  if  a  creosote 
buildup has occurred.
If creosote has accumulated it should be removed to re-
duce the risk of a chimney fire.
The chimney cap can be removed for inspection, main-
tenance and cleaning by removing three screws from the 
support legs and lifting upward.
When the fireplace is first  in use, inspect the chimney fre-
quently and clean the chimney any time an accumulation 
is observed on the flue walls.  The frequency of these in-
spections can be increased or reduced appropriately after 
a pattern of accumulation has been established.  Please 
note, however, that changes in the outside environmental 
conditions such as temperature and humidity or changes 
in the operation of the fireplace can lead to rapid buildup 
of soot and/or creosote.
To  clean  the  chimney,  obtain  the  services  of  a  qualified 
and reputable chimney sweep, or remove the accumula-
tion with brushes on wooden or fiberglass poles.  Do not 
use metal pipes, chains, wires, etc., to clean the chimney 
because such items can scratch the surface of the stain-
less steel flue which can shorten the life of the flue and 
provide a rough surface for soot particles to attach to.
Be  sure  to  cover  nearby  furnishing  and  arrange  some 
method of catching soot and creosote particles that may 
fall during the chimney cleaning process.  If glass doors 
are installed on the fireplace, they should be closed.  Extra 
caution must be used to avoid damage to the flue damper 
during the cleaning process.
In  addition  to  checking  and  cleaning  the  chimney  on  a 
regular basis, be sure to inspect the chimney before start-
ing a fire at the beginning of each heating season.  Make 
sure the chimney is clear from any accumulation of soot, 
creosote or any other debris, and that all joints are intact.
MHSC does not recommend chemical cleaners because 
some may contain elements that corrode the metal parts 
of the chimney or fireplace.

Содержание B36LA8

Страница 1: ...r Residential Installation 36 Built in Wood Burning Corner Fireplace with Optional Outside Air and Glass Doors WARNING This fireplace has not been tested with an unvented gas log set To reduce risk of...

Страница 2: ...installation you should check with local building officials to obtain required permits and assure compliance with local regulations and coded If you encounter problems with code requirements contact...

Страница 3: ...ed for supplemental heating only and is not intended for use as a primary heating system The fireplace is designed to sit directly on a combustible floor The fireplace must be installed with clearance...

Страница 4: ...the precautions and recommendations in the section of this manual pertaining to outside combustion air assembly The fireplace is also equipped with a flue damper which must be open when the fireplace...

Страница 5: ...provides for the installation of the model LF FS 2 firestop spacer in a residential installation Since the pitch of the roof influences the opening size required at the roof level table 1 should be u...

Страница 6: ...himney 1Z x Min Air space Clear ance to Combustibles Chimney Section SK81 1 ft pipe SK818 18 pipe SK83 3 ft pipe SK84 4 ft pipe Top Spacer Zero Clearance to Combustibles at Side Spacers Glass Doors Mo...

Страница 7: ...Model I658 Clearance from Fireplace Opening to Sidewall When Wall Shield is not Used B36RA8 Hearth Extension Model I627 Hearth Extension Model I658 Minimum Clearance from Fireplace Opening to Sidewal...

Страница 8: ...hearth extension and the face of the fireplace To help prevent the crack from developing the hearth extension materials must be firmly fastened in place Wall ties should be screwed to the face of the...

Страница 9: ...yramid style chimney cap used to terminate chimney through a chase Includes adapter Flashing not included CF8CA Adapter kit Unites square termination with chimney pipe 202036 Housing extensions Extend...

Страница 10: ...3 Min Storm Collar Flashing Roof Joist Shields Attic Space Refer to Table 1 for Roof Opening Size FS Firestop Spacer 14Z x x 14Z x Framed Opening 1Z x Clearance to Com bustibles with Firestop SK8 Seri...

Страница 11: ...tional for cold climate not a requirement for unit op eration Termination Cap Storm Collar Pan Flashing Draftstop Top Spacer Surround Screen Firebox Metal Safety Strips 1 2 or 3 pieces Nailing Flange...

Страница 12: ...oist 1Z x Clear ance to Combus tibles When Using Firestop Max Installation Height 86 14Z x Square Hole in Joist 1Z x Min Air Space Clear ance Between Chimney and combustibles Firestop Spacer Firestop...

Страница 13: ...arances as specified by this in struction manual 3 Set the fireplace in the desired location and be sure it is securely supported and leveled Install metal safety strip for hearth extension as shown b...

Страница 14: ...eplace Model C36RMA B36RA8 with RLK Louver kit WB36LR Glass Door and OAC6 Combustion Air Model C36LMA not shown same as above except uses LLK Louver Kit on the B36LA8 fireplace Cool Air Inlet WB36LR G...

Страница 15: ...ge to the chimney 4 Install firestop spacers at each ceiling level 5 Install the proper chimney cap or chimney housing on the chimney to prevent the entry of rain and debris into the chimney and to as...

Страница 16: ...to the chimney exit B36LA8 B36RA8 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 t...

Страница 17: ...lace may be used 6 A guy wire stabilizer is required for chimneys extend ing more than 6 1 8 m above a roof line The Ten Foot Rule Major U S building codes specify a minimum chimney height above the r...

Страница 18: ...hase it is also a good idea to install a firestop at the first ceiling level above the fireplace and enclose the chase with sheeting material Insulation may then be installed above sheet ing material...

Страница 19: ...size of the hole in ceiling will vary with the angle at which the chimney passes through ceiling Drive a nail up through ceiling at marked chimney center point Go to floor above and see where hole wil...

Страница 20: ...is used to keep pipe spaced properly and required for safety Nail the firestop spacer at each corner to the framing members of the ceiling hole Note A firestop spacer is not required at the roof Hole...

Страница 21: ...chimney termina tion installed Refer to installation instructions provided with the chimney termination to find correct size of roof hole There must be an air space 1 38 mm with SK8 between outermost...

Страница 22: ...E Firestop Spacer 14Z x x 14Z x Maximum four 4 elbows Per Fire place Offset Max 10 Support Straps Diagonal Chimney Enclosure Vertical Chimney Enclosure Recommended Diagonal Chimney Enclosure Acceptabl...

Страница 23: ...an exterior location which is not likely to be accidentally blocked in any manner The assembly should be located above the snow line to prevent blockage by snow accumulation 3 The combustion air inlet...

Страница 24: ...e fireplace with the four 4 sheet metal screws provided Figure 24 3 Cut a 6 diameter opening for model OAC4 in the out side wall covering where the model OAC4 outside grille is to be located Figure 26...

Страница 25: ...sions on the fireplace The following instructions only apply to passing the gas line through the fireplace wall Follow the instructions provided by the appliance for the gas line testing and ad justin...

Страница 26: ...is manual Page 13 Figure 10 Combustible mantels and trim must be installed in accordance with the National Fire Protection Association ANSI NFPA 211 Standard Section 7 2 3 3 Glass Door Installation Th...

Страница 27: ...rer Recommendation Top Edge of Fireplace Opening Mantel Installation Do Not Install Combustible Facing Material Below Top Edge of Fireplace Air Inlet Opening CAUTION Never block bottom air inlet openi...

Страница 28: ...blems If your fireplace is equipped with an outside combustion air assembly open the combustion air inlet by pushing upward on the lever located above the firebrick on the left side of the firebox NEV...

Страница 29: ...ced on a noncombustible floor or on the ground well away from all combustible materials pending final disposal If the ashes are disposed of by burial in soil or otherwise locally dispersed they should...

Страница 30: ...the chimney 9 Do install firestop spacers at each ceiling level when the chimney is installed in a multistory building 10 Do install the proper chimney cap or chimney housing on the chimney to preven...

Страница 31: ...larly 21 Don t operate the fireplace with the glass fire screen doors partially open The doors should always be fully open or fully closed 22 Don t use gasoline kerosene engine oil or charcoal lighte...

Страница 32: ...Y 40361 www mhsc com Item Description Qty B36RA8 B36LA8 1 Retainer Side Brick 1 020270 020270 2 Retainer 2 Z19901 Z19901 3a Firebrick Side Assy Right 1 014012 3b Firebrick Side Assy Left 1 021663 4 Ro...

Страница 33: ...87D0176 33 B36LA8 B36RA8 Woodburning Fireplaces...

Страница 34: ...34 87D0176 B36LA8 B36RA8 Woodburning Fireplaces...

Страница 35: ...your local building code contains restrictions on the use of this fireplace before you purchase it Blowers or fans which are warranted separately Heat loss due to the passage of heat or air through o...

Страница 36: ...MHSC 149 Cleveland Drive Paris Kentucky 40361 www mhsc com...

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