MHSC SB44SS Installation, Operation And Maintenance Manual Download Page 30

SB44SS Outdoor Woodburning Fireplace

30

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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 problems 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 after 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.

You’ll need a minimum of three logs, preferably four, to make a good fire.  Add kindling and new 
logs as needed to rekindle a dying fire.  New logs should be added at the rear grate after raking 
the coals toward the front.  

do not overfire the fireplace

.  Overfire conditions may be created by 

large amounts of kindling, building scraps, or other improper fuels.
Ashes, important because they form a bed of glowing coals, should only be left to accumulate 
within an inch or two of the bottom of the grate.  Excess ashes can be used to check a flaming 
fire; or to  “bank” your fire, cover the logs with ashes.  A “banked” fire will hold glowing coals for 
8-10 hours, thereby saving a fire for later use.

WOOd vS. FOSSIL FueLS

Compared to fossil fuels, a full cord of dry hickory weighs about two tons and is approximately 
equal in heating value to a ton of hard coal.  On a pound basis, heavy hardwoods have about half 
the heating value of coal. The tabulation shows the relative densities and heat values of a variety 
of dry woods.  Varieties at the top of the list (Dogwood) burn longer and those near the bottom 
(White Pine) ignite and burn quicker.  A combination of both light and heavy wood is desired.

SpeCIeS 

deNSITy 

heaT vaLue

Dogwood 

.70-.79 

100-107

Hickory 

.70-.74 

100

Oak 

.60-.73  

86-99

Black Locust 

.69-.70 

95-98

Beech 

.64-.66 

89-91

Hard Maple 

.58-.65 

83-88

Birch 

.55-.64 

79-86

Apple 

.58-.6 

83-84

SpeCIeS 

deNSITy 

heaT vaLue

Ashes 

.57-.61 

81-8

Southern Pine 

.51-.60 

73-81

Elm 

.50-.59 

71-80

Cherry 

.50-.5 

70

Douglas Fir 

.45-.51 

64-69

Spruce 

.41-.44 

59

Redwood 

.33-.40 

47-54

White Pine 

.35-.37 

50

Summary of Contents for SB44SS

Page 1: ...or Fireplace Model SB44SS 539026 SB5400 cover Safety Notice If this appliance is not properly installed operated and main tained a house fire may result To reduce the risk of fire follow the installat...

Page 2: ...his or any other factory built fireplace properly can result in a house fire or other occurrences that could cause deaths injuries and property damages It is very important that the persons installing...

Page 3: ...t or other prod ucts not specified for use with this fireplace Warning Do not pack required air spaces with combustible material or insulation not specifically recommended for use in such areas Propos...

Page 4: ...fireplace is designed to sit directly on a combustible floor The fireplace must be installed with clearances to combustible building materials specified in this manual Only parts manufactured by MHSC...

Page 5: ...up to open or pulling down to close the damper When the fireplace is not in use the damper should be closed to prevent cold air form entering the chimney as well as preventing warm air in the room fro...

Page 6: ...356 456O 456O 856QE 27 1156QE 6 6 1 8 3556QE 52 6 10 6QE 8 6 11 6 155 6 O 539028 SB5400SS dims 11 ID Flue 13 OD Outer Pipe Gas Line Opening Outside Air Opening A B C FP1531 hearth dimensions 9 04 djt...

Page 7: ...stibles Flexible Duct Type FP 4 U Combustion Air Assembly FP2236 Nail to Framing Members Galvanized Metal Strip CAUTION Do not restirict side air inlet vents with sur round or trim materials Storm Col...

Page 8: ...igure 4 12 Max M1002 Mantel install 8 08 Mantel Installation Combustible Framing Members to Top of Spacers Combustible Mantel Top Edge of Fireplace 18 Min From Fireplace Opening to Bottom of Combustib...

Page 9: ...tral heat outlets or returns or other places where air movements may disturb the airflow around the fireplace Air turbulence near the fireplace may cause smoke to spill out of the fireplace opening 64...

Page 10: ...hanges in the roof shape nearby wall or embankments under or near trees or above the roof of a single story wing of a two story building Figure 10 All these conditions can cause turbulence or pressure...

Page 11: ...Spacer FP1883 Insulating Fireplace Enclosure for Cold Climates If you live in a cold climate it is not required but highly recommended that you insulate the fireplace enclosure to eliminate cold air...

Page 12: ...n it and insulating qualities equal to or better than the 1 2 covering provided by the H2068 Figure 12 Figure 13 Hearth Safety Strip is Required When Unit is Placed on a Combustible Floor or Platform...

Page 13: ...he crack from developing the hearth extension materials must be firmly fastened in place Wall ties should be screwed to the face of the fireplace and imbedded in the mortar joints of brick stone or ot...

Page 14: ...stallations RLTCF11L Extended chimney cap for contemporary installations 8 6 12 0 6 12 pitch flashing for contemporary installation 8 12 12 6 12 to 12 12 pitch flashing for contemporary installation F...

Page 15: ...require electrically grounding the fireplace and chimney Chimney Installation In order to assure safe and satisfactory performance of the fireplace it is very important to properly install the chimne...

Page 16: ...ress down until the snap locks engage Continue the process adding the chimney sections on top of each other until the chimney is at least six inches above the roof opening on all sided As the chimney...

Page 17: ...Securely to Lower pipes Before Fastening Support Straps FP1890 FP 548b SHR 5 11 99 djt Angle of Chimney at Ceiling Size of Chimney Vertical 30 11 CF 2 Wall FS2A 1756O x 1756O 445 x 445 mm FS6A 17 6 x...

Page 18: ...two inch minimum air space clearance to the chimney at the extremities of the offset It is recommended that enclosing material not follow the inclined portions of the chimney Offset Installation Sequ...

Page 19: ...ra tion above A Height of the chimney is measured from the hearth to the chimney exit Max 86 0 Min 0 Elbows 18 0 2 Elbows 24 0 4 Elbows 30 0 B Do not use more than 4 elbows per chim ney Attach the str...

Page 20: ...imney Enclosure Chimney Must Be Enclosed in Accessible Areas Firestop Spacer Diagonal Chimney Enclosure RISE Firestop Spacer 2 Air Space Clearance to Combustibles NOTE Four 4 elbows may be used when t...

Page 21: ...uct in place and slide the flashing over the chimney Adjust the chimney to assure that the proper minimum clearances are maintained 5 Nail the flashing securely in place with eight nails 6 Seal the cr...

Page 22: ...ould be at least 24 inches apart to help prevent smoke from a fireplace in use from being drawn down the chimney of a fireplace that is not in use Additional spacing between caps or staggering the hei...

Page 23: ...rting collar to left side of fire place with four 4 sheet metal screws provided NOTE The starting collar extends through the outer fireplace jacket and will seal against the firebox wall when secured...

Page 24: ...gasoline might be drawn into the fireplace 4 Combustion air can be drawn form the crawl space under a house when an adequate supply of air is provided by open ventilation 5 Do not take combustion air...

Page 25: ...st three inches beyond the face of the wall to which the AK 4 inlet air vent will be attached The duct may be cut with a standard pocket knife use FP 4 U duct for maximum efficiency and safety Do not...

Page 26: ...eplace When an approved ANSI Z21 11 2 unvented room heater is installed in this fireplace an H2853 CANOPY must also be installed Warning Do not operate an unvented gas log set in this fireplace with t...

Page 27: ...the supporting floor will further reduce the possibility of such a crack developing Wall ties should be fastened to the face of the fireplace with sheet metal screws and placed in the mortar joints of...

Page 28: ...any trim materials to extend closer than 3 8 inch to the vertical edges of the firebox opening if glass doors are to be installed Use Only Noncombustible Materials Below Top of Spacers Fireplace Face...

Page 29: ...wood is generally more expensive but a little combined with other wood goes a long way Start your fire with a mixture of softwood and hardwood then add some fruit or nut wood for nostalgic aroma Since...

Page 30: ...he 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 You ll need a minimum of three logs pr...

Page 31: ...ng the heating season to determine if a creosote buildup has occurred If creosote has accumulated it should be removed to reduce the risk of a chimney fire The chimney cap can be removed for inspectio...

Page 32: ...ial and parts for the installation of the fireplace 3 Do insulate the exterior walls surrounding the fireplace to prevent excessive heat loss from the fireplace 4 Do trim the face of the fireplace onl...

Page 33: ...flashing roof 14 Don t dry clothing or other articles near the fireplace 15 Don t store or place flammable liquids gases or pressurized containers near the fireplace 16 Don t neglect to instruct all r...

Page 34: ...t and accurate service please provide the following information when placing a repair part order Model number of your Appliance Part Name Part Number and Quantity of parts needed Technical Service Dep...

Page 35: ...this fireplace before you purchase it Blowers or fans which are warranted separately Heat loss due to the passage of heat or air through or around the fireplace Also under our five year coverage we do...

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

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