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Vermont Castings  •  Aspen 1920 Owner's Manual_R32 • 08/17

Chimneys and Venting 

A. Draft

Draft is widely misunderstood. It is important that you, the 

stove operator, realize that draft is a variable 

effect

, not a 

given quantity. Stoves and chimneys do not 

have

 draft, yet 

draft is the key to your stove’s performance.
Draft is a 

force

, produced by an operating stove and the 

chimney to which it is attached. It is created by hot gases 

rising up the chimney, creating a pressure difference between 

the inside of your home and the outside air. It continually 

moves fresh combustion air into the stove, and hot exhaust 

gases out of the stove; without this constant flow, the fire 

will go out.
Other factors, such as barometric pressure, winds, the 

airtightness of the home, the total inside chimney volume, 

chimney height and the presence of venting devices such 

as exhaust fans also play a role in maintaining an adequate 

draft. Low barometric pressures, super insulated homes 

and exhaust fans can reduce draft; winds can play havoc 

with draft; and too large or too small a chimney volume can 

cause  reduced  draft  due  to  the  excessive  cooling  or  not 

enough room to vent exhaust gases. Introducing outside air 

directly to the stove may help remedy a low draft problem. 

Some signs of inadequate draft are smoking, odor, difficulty 

in maintaining the fire, and low heat output. Overdraft can be 

caused by a very tall chimney even if it is the recommended 

size, and can cause overfiring of your stove. Signs of an 

overdraft include rapid fuel consumption, inability to slow 

the fire, and parts of the stove or chimney connector glowing 

red. It is important that you follow the chimney guidelines in 

this manual, including size, type, and height to avoid draft 

problems.
When installed and operated according to this manual, the 

Aspen will produce enough hot gases to keep the chimney 

warm so that adequate draft is maintained throughout the 

burn cycle.

B. Chimney Connectors

In general, following these guidelines will ensure compliance 

with all national and provincial codes; prior to beginning your 

installation,  check  with  your  local  building  code  official  to 

check on additional local regulations which may influence 

the design and placement of your venting system.
The Vermont Castings Aspen may be installed with a 

minimum  (.6mm)  24  gauge  chimney  connector  pipe. The 

size of the connector should correspond to the size of the flue 

collar opening. Do not use makeshift compromises. No part 

of the chimney connector may pass through an attic or roof 

space, closet or other concealed space, or through a floor 

or ceiling. Whenever possible, avoid passing the connector 

through a combustible wall; if you must, use an approved 

wall pass-through, described later in this section.

The Chimney Connector Shall Not Pass Through an Attic or Roof 

Space, Closet or Similar Concealed Space, Floor or Ceiling.

Assemble the connector beginning at the flue collar, with the 

crimped ends pointing towards the stove (to keep debris or 

residue inside the system). Each joint, including the one to the 

stove’s flue collar and the one to the chimney itself should be 

secured with at least three sheet metal screws. Screws may 

be a maximum of 3 inches apart. A 1-1/4" (30mm) overlap is 

required at each joint, including the flue collar attachment. 

No more than two 90° elbows should be used, and the total 

length  of  connector  should  not  exceed  10  feet  (3m). All 

horizontal runs of connector must have a minimum upward 

slope of 1/4" (6mm) per foot (20mm per meter).

The chimney connector diameter should correspond to 

the  size  of  the  flue  collar  opening.  Do  not  use  makeshift 

compromises. No part of the chimney connector may pass 

through an attic or roof cemented in place with refractory 

cement.

C. Wall Pass-throughs

Depending on your local building codes, and the pertinent 

provincial or national codes, there are several choices for 

passing the chimney connector safely through a wall. Before 

beginning your installation, contact local officials, and also 

the chimney connector and chimney manufacturer for specific 

requirements.

Canada. 

Three methods are approved by the Canadian 

Standards Association. Figure 5.10 shows one method 

requiring an 18" (450mm) air space between the connector 

and the wall. It allows use of one or two covers as described 

in the diagram. The two other methods are described in detail 

in the current issue of CAN/CSA B365, the national standard.

United States 

In the U.S., the national code is NFPA 211. 

While many localities adopt this standard, be sure to check 

with local authorities before beginning your installation.

The  NFPA  (National  Fire  Protection Agency)  permits  four 

methods for passing through a combustible wall. A commonly 

used method to pass through a wall directly to a masonry 

chimney is to clear a minimum 12" (300mm) around the entire 

chimney connector, and fill it with brick masonry which is at 

least 3.5" (90mm) thick. A fireclay liner, minimum 3/8" (9mm) 

wall thickness must run through the brick wall to the chimney 

liner (but not beyond the inner surface of the liner). It must 

be cemented in place with refractory cement. For details on 

the other three options, refer to the most recent edition of 

the NFPA 211 code.

Содержание The Aspen 1920

Страница 1: ...N HOT WILL CAUSE BURNS DO NOT TOUCH GLASS UNTIL IT IS COOLED NEVER ALLOW CHILDREN TO TOUCH GLASS KEEP CHILDREN AWAY CAREFULLY SUPERVISE CHILDREN IN SAME ROOM AS FIREPLACE ALERT CHILDREN AND ADULTS TO...

Страница 2: ...hacombustiblewallorceiling Floor Protection U S With Vermont Castings Bottom Heat Shield Kit No 1895 use a noncombustible floor protector such as1 4 non asbestosmineralboardorequivalentor24gaugesheetm...

Страница 3: ...ction 13 5 Chimneys and Venting A Draft 14 B Chimney Connectors 14 C Wall Pass throughs 14 D The Chimney 15 6 Mobile Home US Only A Mobile Home Installation 20 7 Appliance Set Up A Un Pack Stove 21 B...

Страница 4: ...manner inconsistent with operating instructions in this manual Area Heated 400 1 200 Square feet Loading Front Chimney Connector 6 152 mm Flue Exit Position Reversible top or rear Primary Air Manually...

Страница 5: ...S ROOM HEATER IS NOT PROPERLY INSTALLED AHOUSEFIREMAYRESULT TOREDUCE THE RISK OF FIRE FOLLOW THE INSTALLATION INSTRUCTIONS CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION...

Страница 6: ...d clearances to combustibles Insulation must not touch the chimney You must maintain the designated air space around the chimney This space around a chimney is necessary to allow natural heat removal...

Страница 7: ...t all items for shipping damage Notify dealer of any missing or damaged goods 2 All safety warnings have been read and followed precisely 3 This Owner s Manual has been read in it s entirety 4 Floor p...

Страница 8: ...s Manual_R32 08 17 15 381 mm 24 610 mm Top Exit Flue Collar Height 16 406 mm 22 570 mm 7 184 mm 18 457 mm 23 584 mm C L 6 152 mm 7 191 mm 3069 Aspen Specs 2 15 00 djt 22 565 mm Figure 4 1 Aspen 1920 s...

Страница 9: ...Top Exit Rear H S Double Wall Connector Shields 1 3 Q 24 610 mm R 7 178 mm S 13 330 mm T 16 406 mm U 7 178 mm V 8 203 mm Chimney Connector Unprotected Surface Vertical Protected Surface Vertical No H...

Страница 10: ...all Stove in Corner Stove Installed Parallel to Wall Stove in Corner ST255 exit diagram 12 15 99 djt S B C C D E F J K NA NA O R N M Q A H I U P V T S G Top Exit No Heat Shields Rear Exit Rear Heat Sh...

Страница 11: ...hind connector Parallel installation with rear wall pass through two wall shields Figure 4 6 Reduced clearances for both rear and side walls Wall shields may meet at corner if desired Shielding for co...

Страница 12: ...of the stove and the decorative side trim on the fireplace face and the top of the stove and the mantel Maximum Mantel depth A Figure 4 8 of a combustible mantel is 9 230 mm At that depth the clearanc...

Страница 13: ...bottom plate of your Aspen The floor area directly under and around the stove will require protection from radiant heat as well as from stray sparks or embers that may escape the firebox Heat protecti...

Страница 14: ...connector may pass through an attic or roof space closet or other concealed space or through a floor or ceiling Whenever possible avoid passing the connector through a combustible wall if you must us...

Страница 15: ...SANDINSTALLATIONINSPECTION REQUIREMENTS IN YOUR AREA Before you begin an installation review your plans to be certain that Your stove and chimney connector will be far enough from combustible material...

Страница 16: ...lp assure safety use chimney components manufactured by a single source NOTE For installations using double wall connectors minimum clearances must conform to those listed in the clearance chart in Se...

Страница 17: ...e chimney Single wall Chimney Connectors Beginning at the flue collar of the stove assemble the chimney connector Insert the first crimped end into the stove s flue collar and keep each crimped end po...

Страница 18: ...d States for passing chimney connectors through combustible walls Many building code inspectors follow these guidelines Figure 5 6 shows one NFPA approved method All combustible material in the wall i...

Страница 19: ...ney Flue Sheet Steel Supports Min 2 51mm Non soluble refractory cement Solid insulated listed factory built chimney length set flush with flue Chimney Connector Masonry Chimney constructed to NFPA 211...

Страница 20: ...ding Heating Appliances UL 103 5 The chimney must be attached directly to the stove and must extend at least 3 914mm above the part of the roof through which it passes The top of the chimney must exte...

Страница 21: ...g brackets from the stove bottom DO NOT discard washers 2 Install two legs using the hex head bolts in the hardware pack along with the 3 8 washers that were used to hold the brackets in place The sho...

Страница 22: ...into the flue collar Using the holes in the collar as guides drill 1 8 3mm holes through the connector pipe Use the three 10 x 1 2 sheet metal screws provided to secure the chimney connection to the f...

Страница 23: ...you will ensure proper draft and gain maximum efficiency and enjoyment from your stove Do not alter the position of the andirons Building a fire too close to the glass may cause damage to the glass cr...

Страница 24: ...raws air into the stove for combustion A slow lazy fire with the stove s air inlets fully open indicates a weak draft A brisk fire supported only by air entering the stove through the normal inlets in...

Страница 25: ...flow will lower flue temperatures reduce draft strength and promote creosote development overall stove performance will suffer The effect is similar to that of a vacuum cleaner with a hole in the hos...

Страница 26: ...also depends on a sufficient supply of air to the stove The chimney cannot pull more air than is available Sluggish draft can be caused by a house that is tight enough to prevent the ready flow of air...

Страница 27: ...ward the back of the stove light them and close the door This should heat the chimney enough to initiate strong draft Once the draft is established open the front door and light the rest of the fuel b...

Страница 28: ...itintheclosedcontaineruntilallcindershavethoroughly cooled You can use wood ash as a garden fertilizer CAUTION Never use your household or shop vacuum cleaner to remove ash from the stove always remov...

Страница 29: ...ure the glass is completely cool Clean the glass with water or a cleaner made especially for this purpose Do not use abrasive cleaners Rinse the glass thoroughly Dry the glass completely Glass Replace...

Страница 30: ...and the stove has cooled Be sure to follow the standard safety procedure for working with dusty materials Wear safety goggles and a dust mask Step 1 Remove the existing gasket by grasping an end and p...

Страница 31: ...e system if necessary Failure to keep the chimney and connector system clean can result in a serious chimney fire When wood is burned slowly it produces tar organic vapors and moisture that combine to...

Страница 32: ...3 11 43 36 42 37 33 21 12 41 20 19 50 38 47 21 35 41 13 44 38 51 6 5 51 19 40 17 18 3 51 38 41 2 50 53 38 50 22 28 45 25 46 54 0369 Aspen 1920 parts 8 02 55 56 57 Vermont Castings reserves the right t...

Страница 33: ...ver 30000351 30006800 Front 30000348 30006801 Ashlip 30000352 30006808 Door 300003350 30006802 Leg Set of Four 30000502 30006810 Single Leg 30000360 30006807 Item Description Part number 30 Glass Gask...

Страница 34: ...occupancy of the dwelling or six months after the sale of the product by an independent authorized HHT dealer distributor whichever occurs earlier However the warranty shall commence no later than 24...

Страница 35: ...nce some changes in color of interior and exterior surface finishes may occur This is not a flaw and is not covered under warranty Damage to printed plated or enameled surfaces caused by fingerprints...

Страница 36: ...but not limited to improper chimney or venting installation LIMITATIONS OF LIABILITY The owner s exclusive remedy and HHT s sole obligation under this warranty under any other warranty express or imp...

Страница 37: ...37 Save These Instructions Vermont Castings Aspen 1920 Owner s Manual_R32 08 17...

Страница 38: ...38 Save These Instructions Vermont Castings Aspen 1920 Owner s Manual_R32 08 17 352 Mountain House Road Halifax PA 17032 www vermontcastings com...

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