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ONYX2 Owner's Manual 

RSF Woodburning Fireplaces 

FIRST FIRES 

You will experience a slow start-up during the first few fires. The refractory bricks lining the firebox contain 
moisture from manufacturing and require a few hot fires to evaporate the moisture. While there is still moisture in 
the bricks, they will be black with smoke deposits. When the moisture has dissipated, the bricks will turn white. 
Unlike cast iron stoves, there is no need to cure the fireplace itself by starting with small fires and progressively 
larger ones. Feel free to light a large fire from the very start.  

You will experience a slight odor during the first few fires. This odor comes from curing paint and oil burning off 
the metal. The odor may be strong enough to set off your smoke detector. Open the doors and windows to allow 
the room to properly ventilate.  

Before the first fire, be absolutely sure to use regular dish soap and water to wipe off all fingerprints and 
debris from the gold plating if you have chosen this option. The plating cures during this first fire, the 
acid from your finger prints will permanently etch the gold plating. 

LIGHTING 

Ensure that the combustion air control lever is all the way in the open position. You will want as much air as 
possible for the lighting process. 

Start by laying your fire starter and kindling. Traditional fire starter is crumpled newspaper; make sure to use 
enough to light the kindling (5-6 pieces should do). Next lay the kindling crisscrossed over the newspaper. Using 
plenty of kindling ensures that the chimney will heat up quickly and establish a strong draft, 

never use any 

flammable liquids

. Light the paper and close the door most of the way, but don’t shut it completely. If the door is 

positioned correctly you will see air rushing into the fireplace, this will help the lighting process. 

Once the kindling is lit and sustaining fire, you can add some small pieces of seasoned cordwood. Use the 
andirons in front to help position the cordwood so as not to flatten and smother the fire you’ve just created. 
Always add at least 3 pieces of cordwood. Position your cordwood in a manner that the fire will hit several pieces 
as it rises and has air gaps to flow through. Continue to leave the door slightly open until the cordwood is lit. Close 
the door completely when the fire is established, if the fire goes out you’ve shut the door too early. 

To get maximum efficiency out of your fireplace you will want to adjust the amount of air entering the firebox at the 
appropriate times. Gauge how much to close the combustion air by how the fire reacts once the combustion air 
control lever has been moved. If the fire goes out and begins to smolder, there’s too little combustion air entering 
the firebox. If there’s no change to the burn pattern, you can continue to close the combustion air further. 
Eventually you should be able to close the combustion air all or most of the way. There should always be visible 
fire inside the firebox at every step of the process. 

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 WARNING: DO NOT USE A GRATE OR ELEVATE THE FIRE. 

REFUELING 

The door should be opened slowly to keep smoke from spilling into your room. If you have a problem with smoke 
spillage, check to see that all kitchen and bathroom fans have been shut off. They can cause negative pressure in 
the house which pulls smoke out of the fireplace. 

Š

 NOTE

: The central heat and internal blowers, if installed, should be shut off during refuelling to prevent smoke 

from spilling out of the fireplace. 

TROUBLESHOOTING PROBLEMS 

If smoke comes into the house when the door is opened: 

 

You may have opened the door too quickly and created a suction of air into the room, this can be avoided by 
opening the door more slowly. 

 

Ensure your chimney is clean and your chimney cap is not plugged. Chimney caps with screens are more 
likely to become clogged with creosote buildup. 

 

Make sure you have adequate chimney height for your system. Refer to the Chimney section of this booklet 
and make sure to take altitude, and number of elbows into consideration. 

Summary of Contents for ONYX2

Page 1: ...RSF IIN2_2010 04 Owner s Manual Residential Factory Built Fireplace Operation Maintenance Installation ONYX2 Keep these instructions for future use...

Page 2: ...RST 3 DO S AND DONT S 3 CREOSOTE FORMATION AND REMOVAL 3 GENERAL SPECIFICATIONS 4 THE COMBUSTION CONTROL SYSTEM 4 OPTIONS 4 UNIT DIMENSIONS AND CLEARANCES 5 OPERATION 7 AIR CONTROLS 7 BURN TIME VS HEA...

Page 3: ...all combustible materials furniture firewood etc at least 4 away from the front of the fireplace 8 DO NOT use a fireplace grate or other products not specified for use with this fireplace NOTE We stro...

Page 4: ...non combustible materials such as ceramic tile or sliced brick we have designed a rock retainer kit It is not designed or required for full brick or stone With a Louvered ONYX2 you can choose to leav...

Page 5: ...to a basement room when the fireplace is on the main floor but it can also be used to send warm air upstairs To remove accumulated ashes from the firebox simply shovel them into a metal container If y...

Page 6: ...earances A Distance of combustible material from side back and top standoffs 0 0 0 mm B Minimum distance of side wall to the side of the firebox opening this does not allow to fully open the door To b...

Page 7: ...surized house If the fireplace is installed in a mobile home the outside air has to be used as combustion air BURN TIME VS HEAT OUTPUT The faster your fireplace burns the more heat it will create howe...

Page 8: ...seasoned cordwood Use the andirons in front to help position the cordwood so as not to flatten and smother the fire you ve just created Always add at least 3 pieces of cordwood Position your cordwood...

Page 9: ...ed from the door but you will have to replace the window gasket GLASS CLEANING In a controlled combustion firebox temperatures are not always high enough to keep the glass perfectly clean A good hot f...

Page 10: ...e when it is closed 3 Continue by retightening all the hinge screws on the door 4 Verify the alignment of the door with the firebox opening and the latch opening 5 If necessary slightly loosen the scr...

Page 11: ...in many different ways see Figure 6 without any special floor reinforcement We recommend that you take the time to plan your entire installation fireplace chimney and options before beginning the act...

Page 12: ...on Shield with a Storm Collar in the Attic Ceiling Radiation Shield Hearth Extension and Beneath Hearth Extension refer to text for particulars Electrical Knock outs on both sides of the fireplace Out...

Page 13: ...to text for particulars Electrical Knock outs on both sides of the fireplace Outside Air Inlet refer to text for particulars Intake Grill part of Clean Facing Option FO F2 Gravity Vent Option FO V2 u...

Page 14: ...onnecting sleeves are provided with the fireplace 1 Find a convenient location for the combustion air duct and outside air inlet The outside air inlet can be above or below floor level 2 Make a 4 5 if...

Page 15: ...ithin 10 of it If the chimney is higher than 5 above the roof it must be secured using a roof brace 4 Put the roof flashing into place Seal the joint between the roof and the flashing with roofing tar...

Page 16: ...w Turn it in the desired direction and fasten it to the other section with 3 metal screws at the joints 2 Install enough lengths to obtain the desired offset Secure each joint with 3 metal screws 3 Us...

Page 17: ...d liner that will run up inside the masonry chimney see Figure 14 The stainless steel liner should be fitted inside the clay liner all the way to the top of the masonry chimney It is not meant to repl...

Page 18: ...masonry hammer and drill slowly enlarge the hole to the size required Remember to work from the center out Be especially careful with the clay liner behind the brick because three sides of it must st...

Page 19: ...angle spark guard is necessary The sides of the right angle spark guard should be at least 2 x 2 and must be covered with non combustible material Any custom made spark guard must have the minimum wid...

Page 20: ...rick 11 9 N These refractory have been designed specifically for the ONYX2 and no modifications are required to ensure a proper fit GAS LOG INSTALLATION The ONYX2 can be converted into a gas fireplace...

Page 21: ...he fireplace and then remove the metal plate covering the gas line hole 4 You will need to drill or break a hole through the firebrick to allow the gas line through once you put the firebrick back in...

Page 22: ...ONYX2 Owner s Manual 22 RSF Woodburning Fireplaces LISTING LABEL...

Page 23: ...wer Central Heat 9 FO FDHC4 Thermostat Kit 9 FO FDHC6 Central Heat Control 9 FO FDHC6 1 Back Draft Damper FO FDHCZ1 Zone Heat Control 9 FO FDHCZ2 Zone Damper Kit 9 FO FDM7 Masonry Chimney Adapter 7 FO...

Page 24: ...y Vent Damper FO D Blower internal fan FO FDHB5 N Thermostat kit FO FDHC4 Louvered ONYX2 Required Optional Not available Onyx Louvers Black or FO ONLB Onyx Louvers Gold or FO ONLG Onyx Louvers Pewter...

Page 25: ...ONYX2 Owner s Manual 25 RSF Woodburning Fireplaces REPLACEMENT PARTS...

Page 26: ...ONYX2 Owner s Manual 26 RSF Woodburning Fireplaces...

Page 27: ...ked refractory components Repairs or replacements necessitated by vandalism neglect abuse over firing improper fuel or fuel loads or failure to adequately service the unit as stated in the owner s man...

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