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Building a Fire 

(starting and maintaining a fire)

To start a fire, place several crumpled up balls of 

newspaper in the firebox.  Place small dry pieces 

of kindling on top of the paper, criss-crossing the 

kindling so that there are air spaces in between. 

Keep the fuel far back enough so that air can 

get underneath.  Open the air controls fully and 

light the newspaper. Once the newspaper and the 

kindling is well ignited, close the door.  Once the 

kindling fire is well established, cord wood can 

be added (see 

Primary Air Combustion Control 

section for proper operation of the air controls).
The unit will burn best with 2-3 pieces of cord 

wood spaced 1 to 2 inches apart and allowing air 

to get under the fuel.  Criss-crossing or arrang-

ing the fuel so that air can get underneath, will 

help the fire to get started easily. The unit should 

be operated with the air control fully open long 

enough to get the cord wood well ignited.

COMBUSTION CONTROLS

Primary Air and Air Boost Controls

There is no flue damper in the wood burning 

fireplace.  As is common with air tight stoves, 

the combustion air control sets the flow of air 

Figure 1

entering the firebox.  This allows for a more 

precise control of the fire.  The combustion air 

control is located below the door on the left side.  

The main source of air (primary air) entering 

the firebox can be diminished by moving the 

air combustion control from left to right. The 

primary air is fully opened when the air control 

is completely moved to the left. The air control 

device can also be used to add an extra boost of 

air especially during fire start up and reloading 

of the unit. 
Pulling the air combustion control will induce an 

air boost at the base of the fire allowing an easier 

fire start up. When the fire is well established, 

the control can be pushed in to shut down the 

air boost allowing for a longer burn time. The 

combustion air control should be in the closed 

position (primary air and air boost) when the 

fireplace is not in use.  This will minimize air 

leakage up the chimney.  The combustion air 

control should be opened before opening the 

door to minimize the possibility of back draft 

coming into the room.

Accelerated Combustion

The maximum heat output for the fireplace is 

achieved by burning with the door closed and 

the combustion air opened and pulled out.  By 

this method, the fireplace can produce up to 

55,000 BTU of heat per hour.  However, it will 

be necessary to reload with wood every one or 

two hours.  This is the least efficient method of 

burning the fireplace.
Use caution when firing with the combustion 

air control wide open.  Only burn cord wood 

in this manner.  Small dry pieces of softwood 

and construction scraps will burn very intensely 

using this method and may damage the firebox.

Medium Combustion

This is the recommended mode of operating 

the fireplace and should be the one normally 

used since it will deposit the least amount of 

creosote on the glass and in the chimney.  The 

combustion air control must be 3/4 closed and 

pushed in to close the air boost.  The precise 

       WARNING 

Be careful adding wood fuel to 

the fire or handling fireplace tools 

such as shovels, tongs or pokers.

       WARNING 

The bottom refractory can be 

cracked by excessive abuse such 

as tossing heavy logs onto the 

grate or gouging with fireplace 

tools. Exercise caution when 

adding wood to your fireplace.

setting will depend on many factors, including 

chimney length and the moisture content of 

the wood.
For instance, a long chimney will necessitate 

closing the damper more.  To obtain the proper 

combustion, close the damper completely, then 

open it about 1/4” to 1/2”.  Three medium size 

pieces of wood should be burning on a bed of 

hot coals. The heat output will be approximately 

30,000 BTU per hour and the loading time will 

be about every 3-4 hours.  Softwoods may be 

burned using this method but the time will be 

substantially reduced.

Slow Combustion

When the air combustion control is completely 

closed, the fireplace is in a slow combustion phase. 

If the hearth is hot enough, slow combustion will 

not extinguish the fire, but there will be a notice-

able change in the flame pattern. The flames will 

be slow and may appear dirty if the wood is too 

wet (moisture content of 20% and more). Do not 

allow the wood to burn without flame, since this 

will produce excessive creosote in the unit.

Creosote may accumulate on the glass door. 

This method of burning should be used only 

after operating the fireplace with the air control 

opened to produce a hot fire for about an hour 

or at medium pace for at least three (3) hours. 

Slow combustion can be used at night in order to 

reduce the heat output and to prolong the burn. 

The loading time will be between 6-8 hours.

REFUELING FOR BEST PERFORMANCE

The fireplace will operate best if attention is 

given to operating the unit with the damper 

fully opened after refueling in order to bring 

the firebox and the chimney system up to their 

optimum operating temperature.  Combustion 

efficiency is relative to firebox temperature. A 

temperature of 500º C (932º F)  and up, with 

a visible flame, in the upper part of the firebox 

indicates a maximum efficiency.  To obtain this 

temperature, the fireplace must be operated 

with the primary air and air boost controls fully 

opened during 10 to 20 minutes after reloading, 

depending on the heat and on the moisture 

content of the wood.  
Once you have reached the desired temperature, 

the air boost can be closed and the primary air 

set to a medium setting.  You know you have 

reached the desired temperature when, closing 

the primary air control, you can see a flame 

at the top of the firebox.  The benefit of this 

technique will be cleaner glass, less creosoting, 

greater efficiency and the most pleasing fire for 

your enjoyment. 

Push to Close 

Air Boost

Pull to Open 

Air Boost

Combustion Air Control

4

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Open

Close

Summary of Contents for WCT4920

Page 1: ...This installation manual will enable you to obtain a safe efficient and dependable installation of your fireplace system Please read and understand these instructions before beginning your installati...

Page 2: ...Air Intake Pipe 4 10 16 x 3 4 Tek Screws Safety Metal Strip Top standoff assembly loose on top of unit PARTS REQUIRED Fireplace Model 6 diameter chimney United States Model IHP Snap Pak including Chim...

Page 3: ...it is burning WARNING Always ensure that the air inlet to the fireplace is free from debris and any other obstructions that can block the entrance of air WARNING Neither the manufacturer nor the sell...

Page 4: ...ne normally used since it will deposit the least amount of creosote on the glass and in the chimney The combustion air control must be 3 4 closed and pushed in to close the air boost The precise WARNI...

Page 5: ...protectors metallic paper coal plastic waste beach wood Christmas tree sul phur and or oil will damage the fireplace G Donotburndriftwoodwhichhasbeeninthe ocean or salt water The salt will corrode th...

Page 6: ...seabrushthatwillscratchthestainless steel interior of the chimney C Do not expect chemical cleaners to keep your chimney clean The rain cap can be removed for inspection and or cleaning of the chimney...

Page 7: ...greenorfreshlycuthardwoods DONOTBURN Garbage Lawn clippings or yard waste Materials containing rubber including tires Materials containing plastic Wastepetroleumproducts paintsorpaintthinners or aspha...

Page 8: ...specifically designed for this fireplace The fireplace cannot be operated with out door Consult your dealer to select the correct replacement door Important Toassureproperalignment of glass doors Ins...

Page 9: ...the other half must extend on the floor over which the hearth extension will be built see Figure 8 The safety metal strip must cover the entire width of the fireplace The combustible floor in front of...

Page 10: ...t of the unit for the hearth extension and the mantel and taking into consideration the location of the hot air ducts optional outside air kit and chimney Ifpossible youshouldchoosealocationwhere thec...

Page 11: ...ny facing material installed on the front of thefireplace Ifthickermaterialisinstalled use the facade as a template and make sure it can be easily removed for servicing Outside Chase Zero Clearance fr...

Page 12: ...d in the same man ner using the same insulation as the rest of the building below the attic 7 Ft Min Attic Radiation Shield Roof Support Storm Collar Flashing Drywall or Any Rigid Material 2 x 4 Firep...

Page 13: ...stible Material Inches millimeters Drywall Facade Facade Facade Facade Drywall Drywall Jack Stud Jack Stud Jack Stud Jack Stud 32 1 2 826 32 1 2 826 31 1 2 826 22 3 8 569 28 3 8 721 28 3 8 721 Louvere...

Page 14: ...S SIDE NAILING FLANGES Side Nailing Flanges 2 places Figure 16A Only non combustible mate rial should be superposed or projecting over the front of the fireplace 56 1422mm Min Noncombustible Facing Dr...

Page 15: ...andirons from inside the firebox Figure 17A 4 Remove the bottom refractory panels pieces 1 and 2 Figure 6 Page 8 Remove the 14 Cap screws with a 5 32 Allen Key see Figure 17B 5 Unplug the blower Figur...

Page 16: ...e and the air inlets Carefully push the insulation and plastic cover back over the pipe Using aluminium tape fasten the plastic cover in place Figure 19A Outside Connection Figure 19B Aluminum Tape Al...

Page 17: ...A Fireplace HeatFlo Convection Kit Cat No Model Description F3790 EPA HEATFLO KIT EPA Heatflo Conv Kit Table 2 GENERAL INFORMATION If you encounter any problems need clarification of these instruction...

Page 18: ...1 280mm Min Duct Ring Duct Adaptor Tab It is recommended that the ducted flex kit duct system be installed in the following order 1 Plan and frame fireplace and outlet locations prior to ducted flex k...

Page 19: ...e outlet grill The minimum height from thebottomoftheunittothecenteroftheoutletis68 1 7m with the minimum distance from the center of outlet to the ceiling and for the center of the outlet to a side w...

Page 20: ...having the chimney supported by the supports The maximum chimney length that can be supported by the fireplace is nine 9 feet 2 75 m 6 The chimney must extend at least three 3 feet 915 mm above its po...

Page 21: ...er of equal size to the joist should be used Figure 26 FEMALE END MALE END BUTTON LOCK ATTACH FOR LOCK Figure 27 INSULATION SHIELD CAT NO SPIS NAIL FIRESTOP CAT NO SPFS Chimney Flue Diameter 6 A 12 7...

Page 22: ...ance to combustibles AT THIS POINT TIGHTEN CLAMPS 11 Slide IHP chimney pipe into top of tee Align male and female ends Push down on pipe sec tions until locked As sections are added it will be necessa...

Page 23: ...all the next SP chimney section through the roof See Figure 32 NOTE If your roof is already shingled be sure to slide the upper edge under the shingles to prevent leakage 3 Install a bead of caulk aro...

Page 24: ...verse wind conditions etc may create a need for a taller chimney should smoking occur Additional support is required above the roof if the chimney height exceeds four 4 feet Select the proper support...

Page 25: ...place is normally supplied with a chimney adaptor suitable for use with IHP SnapPak venting In Canada the use of Security Chimneys ASHT adaptor is required Security part number 6IHP1 or 6IHP2 One inch...

Page 26: ...chimney at 30 3 Increase the size of the hole until a 30 liner elbow can be easily slipped through 4 Slide the liner down from the top of the masonry chimney until you reach the hole level 5 Slip thr...

Page 27: ...ated flex x 10 long UZI UZI EPA Fireplace HeatFlo Convection Kit Mandatory for Clean Face Facade Installations EPA Heatflo Conv Kit EPA HEATFLO KIT F3790 OPTIONAL INSTALLATION ACCESSORIES Fireplace Ki...

Page 28: ...9 Top Standoff Header Shield Assy F4713 Damper Rod H8393 Damper Handle Extension F4784 Ash block Louvered Facades F4800 SPECIFICATIONS REPLACEMENT PARTS LIST Cat No Model No F4779 WCT4920WS Product Re...

Page 29: ...our Security Chimneys or DuraVent Distributor or Dealer for ordering information 450 973 9999 1 800 361 4909 USA 1 800 667 3387 Canada 1 800 835 4429 Security Chimneys 2125 Monterey Laval Quebec Canad...

Page 30: ...MEURER TOTALEMENT FERM E LORSQUE LE FOYER FONCTIONNE NE PAS UTILISER DE PO LE ENCASTRABLE OU D AUTRES PRODUITS NON SP CIFI S COMME TANT UTILISABLES AVEC CE PRODUIT CONTACTEZ LES RESPONSABLES DE VOTRE...

Page 31: ...l use with approved fuels listed in the Operation Manual provided with the product This includes burning such fireplace fuels as wood and natural or propane gas Fuel products with abnormal burning cha...

Page 32: ...ler for any questions or concerns REPLACEMENT PARTS See Page 28 for a complete replacement parts list Use only parts sup plied from the manufacturer Normally all parts should be ordered through your I...

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