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OWNER’S MANUAL                                                                                  MODEL:  8745 TUCSON Vent-Free HEATER

 

 

 

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holes that will slide over the two posts in the bottom 
of the firebox  The rear tabs on the Middle Log 
should touch the front of the Rear Log, and the log 
should be centered as best as possible. 

 

5) Place the Ember Screen (3) on the front burner 
tube with the long side of the Screen to the front, and 
the tabs should be facing down.

 

 

6) Gently place the Front Log (4) in the firebox 
against the front of the burner tube. Center as best as 
possible. 
 
7) Spread evenly across the Ember Screen, the 2 
ounces of Charcoal Embers (5). 
 
8) Gently place the Top Log (6) in the firebox on top 
of the Middle Log. The Middle log has 2 posts which 
slide into the 2 holes on the underside of the Top Log. 
The “leg” on the Top Log points towards the front. 
 
9) With the 1/8" allen wrench fasten the door to the 
firebox. Make sure the door is properly secured to the 
firebox before turning the unit on.  Be careful not to 
chip the enamel when fastening the door. 
 

 

Removal of Log Set

 

 
CAUTION: Log set and charcoal embers retain heat 
and can be very hot! Allow 2 to 3 hours after pilot 
light is turned off before handling. 
 
 
CAUTION: Fragile!  Handle log set and charcoal 
embers with care. 
 
Open door using the 5/32 allen wrench. Loosen the 
screw that secures the door to the  firebox by turning 
it counterclockwise.  Pull the door open by grabbing 
the top edge of door frame. Take care not to chip the 
enamel or to damage the log set when removing the 
log set from the firebox. The log set assembly will 
be in four pieces along with the charcoal embers as 
shown in 

Figure 6

.  First, remove the Top Log(6) by 

pulling it up off the Middle Log(2) and out of the 
firebox. Next remove the charcoal embers. Then lift  
upwards and pull the Front Log(4) out of the 
firebox. Next remove the ember screen(3) from the 
burner tube. Grip the Middle Log(2) and lift upward, 
off the burner tube holder, and out of the firebox. 
The Rear Log(1) can then be removed from the 
firebox. Place the logs and charcoal embers  in a 
safe area where they will not be damaged. 

 

 

 

 

BEFORE THE STOVE IS LIT

 

CAUTION:  Lighting the Tucson for the first 
time and adjustments to the unit should be 
performed by qualified service personnel. 

 

WARNING:

 If you do not follow these instructions 

exactly, a fire or explosion may result causing 
property damage, personal injury or loss of life. 

 
 
 
Initial Adjustments 
 

Once the Tucson has been set in place and 
connected as described in the Gas Supply & 
Connections and Electrical Connections sections of 
this manual, the unit is ready to be lit for the first 
time.  The manufacturer tests each unit prior to 

shipment, so ignition should take place without 
failure.  However, a number of small adjustments 
may be necessary to compensate for variations in 
gas pressure, altitude, and other factors particular to 
each installation.

 

 
 
 
Smoke and Fumes Warning

 

 
When lit for the first time, the unit will emit some 
smoke and fumes.  This is normal “off-gassing” of 
the paints and oils used in the manufacturing and 
assembly of the unit.  Open windows to vent the 
room if necessary.  The off-gassing and fumes will 
subside after the first 10 to 20 minutes of operation. 
 

 

Summary of Contents for TUCSON 8745

Page 1: ...erformed by a qualified installer service agency or the gas supplier This is an un vented gas fired heater It uses air oxygen from the room in which it is installed Provisions for adequate combustion...

Page 2: ...___ __________________________________ ____ _________________ _______________ __________________________________ ____ _________________ _______________ __________________________________ ____ ________...

Page 3: ...he heat output along with the flame height to suit personal needs Heat output can be reduced during the Fall and Spring when the need for heat is reduced and increased during Winter months when the ne...

Page 4: ...ill be operating The installation must conform with local codes or in the absences of local codes the current National Fuel Gas Code ANSI Z223 1 NFPA 54 DO NOT INSTALL THIS HEATER IN A BEDROOM OR BATH...

Page 5: ...tric spark generator as described in the How To Turn the Unit On Off section of this manual Never attempt to light the pilot or main burners by hand with a match or lighter After repeated attempts if...

Page 6: ...stibles Minimum alcove height 22 above stove top HEARTH REQUIREMENTS FLOOR PROTECTION The Tucson can be installed on wood flooring or a non combustible surface For installation of the Tucson on carpet...

Page 7: ...s to be installed meets the following criteria it is considered to be an unconfined space The room in which the heater is to be installed has an air volume of at least 50 cubic feet cubic feet length...

Page 8: ...f the number from III is smaller than the number calculated in II the space should be considered an unconfined space If the number from III is larger than II the space should be considered a confined...

Page 9: ...d space needs to have two permanent openings one commencing within 12 inches 30 cm of the top and one commencing within 12 inches 30 cm of the bottom of the enclosure The openings shall communicate fr...

Page 10: ...the top three stones and grill Use the protective wrapping material to temporarily protect the stones from chipping or damage while the unit is inspected and installed With the top stones and grill r...

Page 11: ...ly behind or too close to the unit otherwise heat from the unit will immediately satisfy the thermostat and turn the unit off Violet Black Yellow On Off T stat Figure 4 Wiring diagram Thermostat Wirin...

Page 12: ...line should be diameter or appropriately sized to provide a sufficient gas supply to meet the maximum demand of the unit without undue loss of pressure We recommend a flexible line to avoid undue mec...

Page 13: ...use however they will break if subjected to rough or improper handling Broken or cracked logs should be replaced When removing and replacing the log set from the unit during routine cleaning or servic...

Page 14: ...m the firebox The log set assembly will be in four pieces along with the charcoal embers as shown in Figure 6 First remove the Top Log 6 by pulling it up off the Middle Log 2 and out of the firebox Ne...

Page 15: ...o its lowest setting or OFF position If the gas control knob is not in the OFF position turn the knob fully clockwise to OFF Locate the variable output and turn it fully clockwise to the highest setti...

Page 16: ...en turned to the ON position the main burners are lit by selecting ON of the On Off T stat switch or if T STAT was selected by moving the thermostat to a high setting so that it calls for heat i e tur...

Page 17: ...ly the thermocouple as well located next to the pilot but not so large as to create excessive noise or consume excessive gas However it can be adjusted by means of the pilot light adjustment screw loc...

Page 18: ...accumulation of dust lint and other debris To clean the firebox set the thermostat to the OFF position and turn off the gas at the gas control valve When the unit is cool u nfasten the front door and...

Page 19: ...x 6 1741 352 top center stone 8e x 3e 7211 554 rear log 7211 559 middle log 7211 556 front log 7211 557 top log 7211 558 charcoal ember 2 oz 5320 070 ember screen 5710 119 light shield 5710 120 back l...

Page 20: ...TER 20 Natural Gas LP Input rating Btu hr 20 000 20 000 Minimum input rating Btu hr 13 500 16 000 Orifice size DMS 44 55 Man pressure HI setting in w c kPa 3 5 10 0 Man Pressure Lo setting in w c kPa...

Page 21: ...oltage between valve body and solder connection on the rear of the valve where the blue wire connects It should be no less than 7mV C1 Ensure that the thermocouple connection at the gas valve is tight...

Page 22: ...input underrated C Valve leak if flashback occurs with burner valve in off position D Improper gas pipe size A Incorrect air to fuel ratio A1 Primary air incorrect A2 Burner ports plugged B Pilot not...

Page 23: ...d orifices against breakage cracking or burn through Ceramic logs and embers against breakage cracking or burn through This warranty expires on the fifth 5th anniversary of the Purchase Date LIMITED T...

Page 24: ...RRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY TO THE SUBJECT STOVE SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS SO THE ABOVE LIMITATION MAY...

Page 25: ...ts related to shipping Stove parts to and from HearthStone or a Dealer as the case may be Shipping cost for the Stove Within the first 1st year after the Purchase Date if the Original Purchaser is ins...

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