Vermont Casting 2550CE User Manual

Encore
Woodburning Stove
Model 2550CE
Homeowner’s Installation and Operating Manual
For use in Europe
SAFETY NOTICE: IF THIS APPLIANCE IS NOT PROPERLY INSTALLED, OPERATED AND MAIN­TAINED, A HOUSE FIRE MAY RESULT. TO REDUCE THE RISK OF FIRE, FOLLOW THE INSTALLATION INSTRUCTIONS. FAILURE TO FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY OR EVEN DEATH. CONTACT LOCAL BUILDING OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION REQUIREMENTS IN YOUR AREA.
Do Not Discard This Manual: Retain for Future Use
Encore Woodburning Stove
Welcome
Congratulations on your choice of a Vermont Castings Encore. With this purchase you have made a commitment to make the hearth a place of warmth, beauty, and comfort in your home. At CFM Corporation, we share that joy and appreciation for the hearth. You may be assured that your cast-iron Vermont Castings stove has been made with the utmost care and will provide you with many years of service.
As you become acquainted with your new stove or fireplace, you will find that its visual appearance is matched by its functionality, due to cast iron’s unique capability to absorb and radiate heat.
Also, CFM Corporation units are among the cleanest-burning wood stoves and fireplaces available today. As an owner of a Vermont Castings stove, you make a strong statement for pollution-free energy. Clean burning, however, depends on both the manufacturer and the operator. Please read this manual carefully to understand how to properly operate and maintain your stove or fireplace.
At CFM Corporation, we are equally committed to your satisfaction as a customer. That is why we maintain an exclu­sive network of the finest dealers in the industry. Our dealers are chosen for their expertise and dedication to custom­er service. They are factory-trained and knowledgeable about every CFM Corporation product. Feel free to contact your Authorized Vermont Castings Dealer anytime you have a particular question about your stove or its performance.
This manual contains valuable instructions on the installation and operation of your Vermont Castings stove. It also contains useful information on maintenance and assembly of this product. We urge you to read the manual thoroughly and to keep it as a reference.
Sincerely,
All of us at CFM Corporation
This manual describes the installation, operation, and maintenance of the Vermont Castings Encore Model 2550CE catalytic-equipped wood burning heater. This heater meets the U.S. Environmental Protection Agen­cy’s emission limits for wood heaters sold on or after July 1, 1990. Under specific test conditions this heater has been shown to deliver heat up to 10.1 kW (34,500 BTU/hr).
The Encore Model #2550CE has been tested to cur­rent standards. The test standards are UL-1482 and ANUL-737 for the United States, and EN13240:2001 + A2:2004 for Europe. The Encore is listed for burning wood. Do not burn other fuels. The Encore is listed and approved for use in mobile homes in the United States only when installed with Vermont Castings Mo­bile Home Kit #3251.
We recommend that you hire a professional installer install your stove, or to advise you on the installation should you attempt to install it yourself.
Please read this entire manual before you install and use your new stove. Failure to follow instructions may result in property damage, bodily injury, or even death.
Table of Contents
Specifications ....................................... 3
Installation ............................................ 4
Assembly ............................................ 12
Operation ............................................ 13
Draft Management .............................. 19
Maintenance ....................................... 21
Appendix: Catalytic Combustor .......... 27
Replacement Parts ............................. 28
Warranty .............................................
Accessories
Warming Shelves #1560 Classic Black #1562 Sand #1555 Biscuit #1565 Bordeaux #1556 Chestnut Brown #1566 Forest Green #1557 Ebony #1567 Midnight Blue #1558 Vt. Classic Green #1568 Suede Brown # 0164 Bottom Heat Shield # 0173 Rear Heat Shield # 3257 Outside Air Adapter # 3251 Mobile Home Kit # 0191 Heat shields for the chimney connector
- Matching porcelain stovepipe
31
2
30003842
Specifications
51 mm
(2")
640 mm
(25")
Top exit
flue collar
height
685 mm (27”)
660 mm
(25")
470 mm
(18")
190 mm
(7")
685 mm (27")
570 mm (22")
390 mm
(15")
130 mm
(5")
75 mm (2")
595 mm
(23")
135 mm
(5")
380 mm
(15")
610 mm
(24")
83 mm
(3")
690 mm (27")
545 mm
(21")
460 mm (18")
Encore Model 2550CE
Nominal heat out put ............10.1 kW (34,500 BTU/hr)
Minimum flue draught ......................12 Pa (0.048” WG)
Mean flue gas temp ..............................339° C (642° F)
Efficiency (Space heating) ......................................75%
Area heated ................... Up to 175 sq. m (1900 sq. ft.)
Fuel size/type .................... 457-510 mm (18-20”) wood
Flue mass gas flow .............................................8.3 g/s
CO Emissions (@ 13% O2) ...........................1600 ppm
Loading .....................................................Front and top
Chimney connector:
for 8” flue collar ....................... 203 mm (8”) diameter
for 6” flue collar ....................... 152 mm (6”) diameter
Chimney flue size:
for 8” flue collar .......................203 mm (8”) minimum
for 6” flue collar .......................152 mm (6”) minimum
Flue exit position ....................... Reversible, top or rear
Primary air ... Manually set, thermostatically maintained
Secondary air .........................................Self-regulating
Ash handling system .....................Removable ash pan
Glass panel ......................... High-temperature ceramic
Encore Woodburning Stove
1
1
Weight ................................................159 kg (350 lbs.)
Width (leg-to-leg) ..................................... 685 mm (27”)
Depth (leg-to-leg) .................................... 380 mm (15”)
Height to top of flue collar, 152 or 203 mm (6” or 8”)
Top exit .............................................. 640 mm (25¹⁄₄”)
Rear exit ............................................ 675 mm (26¹⁄₂”)
1. This value can vary depending on how the stove is operated, the type and moisture content of the fuel used, as well as the design, construction and climatic location of your home. Figures shown are based on nominal fuel consumption obtained under laboratory conditions and on average efficiencies.
Fig. 1 Encore dimensions.
30003842
Drawings Not to Scale
3
Encore Woodburning Stove
30
25
20
15
0 2000 4000 6000 8000 10000 12000
Height
Altitude
Installation
SAFETY NOTICE: IF YOUR ENCORE IS NOT PROP­ERLY INSTALLED, A HOUSE FIRE MAY RESULT. TO REDUCE THE RISK OF FIRE, FOLLOW THE INSTALLATION INSTRUCTIONS. CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRIC­TIONS AND INSTALLATION INSPECTION REQUIRE­MENTS IN YOUR AREA.
Before you begin an installation, be sure that:
Your stove and chimney connector will be far
enough from combustible materials to meet all clearance requirements.
The floor protector is large enough and is con-
structed properly to meet all requirements.
You have all necessary permits from local au-
thorities. Your local building official is the final authority for ap­proving your installation as safe and determining that it meets local and state codes. The metal label permanently attached to the back of every Vermont Castings’ stove indicates the stove has been tested to current standards. The test standard is EN13240:2001 + A2:2004 for Europe. Clearance and installation information also is printed on the label. When the stove is installed according to the information both on the label and in this manual, local authorities in most cases will accept the label as evidence that the installation meets codes and can be approved.
However, codes vary in different countries. Before starting the installation, review your plans with the local building authority. Your local dealer can provide any ad­ditional information needed.
IMPORTANT: FAILURE TO FOLLOW THESE IN­STALLATION INSTRUCTIONS MAY RESULT IN A DANGEROUS SITUATION, INCLUDING A CHIMNEY OR HOUSE FIRE. FOLLOW ALL INSTRUCTIONS EXACTLY, AND DO NOT ALLOW MAKESHIFT COM­PROMISES TO ENDANGER PROPERTY AND PER­SONAL SAFETY.
Outside Air
In some modern, super-insulated homes, there is inadequate air for combustion because of insufficient air infiltration into the building. Such air enters a home through unsealed cracks and openings. Exhaust fans for kitchen or bath can compete with the stove for avail­able air and compound the problem.
When poor draft is caused by a low infiltration rate, opening a ground floor window on the windward side of the house and in the vicinity of the stove will usually alleviate the problem.
For appliances with power outputs above 5 kW, a permanently open air vent is required by Section 2 of Document J. Air inlet grilles should be positioned so that they will not be blocked. Refer to local and national codes for recommended configurations.
Pressure variations within the house do not affect a stove equipped with an outside air supply, and im­proved stove performance often results. An Outside Air Adapter Kit for the Encore is available from your local Vermont Castings dealer.
Chimney Height
Altitude affects chimney performance. When using a 6” flue collar on the Encore, refer to Figure 2 for sug­gested chimney heights at various altitudes. Chimney height should be measured from the flue collar to the top of the chimney. The recommended minimum chim­ney height is 4.9 m (16’).
All local regulations, including those referring to national and European standards, need to be com­plied with when installing this stove.
4
ST491
Fig. 2 Chimney height requirements for Encore when equipped with a 152 mm (6”) chimney.
30003842
Encore Woodburning Stove
What Kind of Chimney to Use
You must connect the Encore to a code-approved masonry chimney with a flue liner, to a relined masonry chimney that meets local codes, or to a prefabricated metal chimney. (Fig. 3) The chimney and chimney con­nector must be in good condition and kept clean. If you use an existing masonry chimney, it must be inspected to ensure it is in a safe condition before the stove is installed. Your local professional chimney sweep, building inspector, or fire department official will be able to inspect the chimney or provide a referral to someone who can.
The flue and chimney design must meet requirement J2, Part J of the building regulations 2000 (Combustion Appliances and Fuel Storage Systems).
A prefabricated double­wall insulated chimney
A tile-lined masonry chimney
ST241
Fig. 3 Approved chimney types.
Masonry Chimneys
An inspection of the chimney must confirm that it has a lining. Do not use an unlined chimney. The chimney should have no cracks, loose mortar, other signs of deterioration, and blockage. Repair any defects before the chimney is used with your stove.
Unused openings in an existing masonry chimney must be sealed with masonry to the thickness of the chimney wall, and the chimney liner should be repaired. Open­ings sealed with pie plates or wallpaper are a hazard and should be sealed with mortar or refractory cement. In the event of a chimney fire, flames and smoke may be forced out of these unused thimbles.
The chimney should be thoroughly cleaned before use.
A newly-built masonry chimney must conform to the standards of your local building code or, in the absence of a local code, to a recognized national code. Masonry chimneys must be lined, either with code-approved masonry or pre-cast refractory tiles, stainless steel pipe, or a code-approved, “poured-in-place” liner. The chimney’s clean-out door must seal tightly.
Prefabricated Chimneys
These should be an internal diameter of 150 mm (6”) and be of the twin wall insulated construction that has been approved for solid fuel use (e.g. Rite Vent ICS of ICID Lite Chimney Systems). Diameters over 200 mm (8”) are not recommended due to the large cross-sec­tion causing excessive cooling of the flue gases.
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
Chimney Size
An Encore with an 203 mm (8”) flue collar is approved for venting into a masonry chimney with a nominal flue size of 203 x 203 mm (8” x 8”) or 203 x 305 mm ( 8” x 12”), and into a round flue with nominal flue size of 203 mm (8”). An Encore with a 152 mm (6”) flue collar is approved for venting into a masonry chimney with a nominal flue size of 203 x 203 mm (8” x 8”), and into a round flue with nominal flue of 152 mm (6”).
NOTE: When installed with a 6” flue collar, the Encore may not be operated with the front doors open.
Whatever the flue collar size, an Encore may be vented into larger chimneys as well. However, chimneys with liners larger than 203 x 305 mm (8” x 12”) may experience rapid cooling of smoke and reduction in draft, especially if the chimneys are located outside the home. These large chimneys may need to be insulated or have their flues relined for proper stove performance.
Accessories to help make the connection between stainless steel chimney liners and your Encore are available through your local dealer.
Chimney Connector Guidelines
A chimney connector is the double-wall or single-wall pipe that connects the stove to the chimney. The chim­ney itself is the masonry or prefabricated structure that encloses the flue. Chimney connectors are used only to connect the stove to the chimney, as in Figure 5.
Connecting Flue Pipes
Connector pipes should meet the requirements of the building regulations. This can be achieved by the use connecting fluepipes included in the following catego­ries:
a) Vitreous enamelled steel pipe complying with BS 6999: 1989 (1996); b) Pipes made from stainless steel as descirbed in BS EN 1008-1:1995 grades 1.4401, 1.4404, 1.4432 or
1.4436 with flue wall thickness of at least 1 mm; c) Mild steel fluepipes complying with BS 1449: Part 1: 1991, with a flue wall thickness of at least 3 mm; d) Cast iron fluepipes complying with BS 41: 1973 (1998).
30003842
5
Encore Woodburning Stove
Flue Pipes with a spigot and socket joint should be fitted with the socket facing upwards, to contain con­densates and moisture within the flue. Joints should be made gas tight using proprietary jointing accessories, or, where appropriate, by packing joint with noncombus­tible rope and fire cement.
Double-wall connectors must be tested and listed for use with solid-fuel burning appliances. Single-wall con­nectors should be made of 24 gauge or heavier steel. Do not use galvanized connector; it cannot withstand the high temperatures that can be reached by smoke and exhaust gases, and may release toxic fumes under high heat. The connector may be 152 mm (6”) or 203 mm (8”) in diameter.
If possible, do not pass the chimney connector through a combustible wall or ceiling. If passage through a com­bustible wall is unavoidable, refer to the section on Wall Pass-Throughs. Do not pass the connector through an attic, a closet or similar concealed space. The whole connector should be exposed and accessible for in­spection and cleaning.
In horizontal runs of chimney connector, maintain a dis­tance of 610 mm (24”) from the ceiling. Keep it as short and direct as possible, with no more than two 90° turns. Slope horizontal runs of connector upward 6 mm per metere (1/4” per foot) going from the stove toward the chimney. The recommended maximum length of a hori­zontal run is 914 mm (36”), and the total length should be no longer than 2.4 m (8’). In cathedral ceiling instal­lations, extend the prefabricated chimney downward to within 2.4 m (8’) of the stove.
Wear gloves and protective eyewear when drilling, cutting or joining sections of chimney connector.
Double-wall Chimney Connectors
Single-wall Chimney Connectors
Begin assembly at the flue collar of the stove. Insert
the first crimped end into the stove’s flue collar, and keep each crimped end pointing toward the stove. (Fig. 4) Using the holes in the flue collar as guides, drill 3 mm (1/8”) holes in the bottom of the first sec­tion of chimney connector and secure it to the flue collar with three #10 x 1/2” sheet metal screws.
Secure each joint between sections of chimney
connector, including telescoping joints, with at least three (3) sheet metal screws. The pre-drilled holes in the top of each section of chimney con­nector serve as guides when you drill 3 mm (1/8) holes in the bottom of the next section.
Secure the chimney con-
nector to the chimney. Instructions for various installations follow.
Fig. 4 the crimped end of the connector points toward stove.
Be sure the installed stove
and chimney connector are correct distances from nearby combustible materials.
NOTE: Special slip pipes and thimble sleeves that form telescoping joints between sections of chimney con­nector are available to simplify installations. They often eliminate the need to cut individual connector sections. Consult your local dealer about these special pieces.
Securing the Single-wall Connector to a
Prefabricated Chimney
Information on assembling and installing double-wall connectors is provided by the manufacturer of the double-wall pipe. Follow the manufacturer’s instructions exactly as you assemble the connector and attach it to the stove and chimney. Using chimneys and connectors from the same manufacturer makes the assembly and installation straightforward.
NOTE: For installations using double-wall connectors, minimum clearances must conform to the listed clear­ances in the clearance chart on Page 14.
If the Encore is equipped with the 203 mm (8”) flue collar, an oval-to-round adapter will be needed. Double­wall oval-to-round adapters are available from some manufacturers. Your local dealer can help you select the right connector.
6
Follow the installation instructions of the chimney manufacturer exactly as you install the chimney. The manufacturer of the chimney will supply the acces­sories to support the chimney, either from the roof of the house, at the ceiling of the room where the stove is installed, or from an exterior wall.
Special adapters are available from your local dealer to make the connection between the prefabricated chimney and the chimney connector. The top of such adapters attaches directly to the chimney or to the chimney’s ceiling support package, while the bottom of the adapter is screwed to the chimney connector.
These adapters are designed so the top end will fit outside the inner wall of the chimney, and the bottom end will fit inside the first section of chimney connector. When assembled in this way, any soot or creosote fall­ing from the inner walls of the chimney will stay inside the chimney connector.
30003842
Encore Woodburning Stove
Chimney
Elbow
Slip Pipe
Standard Connector
Oval to Round Adapter
Flue Collar
Fig. 5 Chimney connection in a freestanding masonry instal­lation.
Flue
Flue Liner
Thimble
ST492
Securing the Single-wall Connector to a
Masonry Chimney
Both freestanding masonry chimneys and fireplace masonry chimneys may be used for your installation.
Freestanding Installations
If the chimney connector must pass through a combus­tible wall to reach the chimney, follow the recommenda­tions in the Wall Pass-Through section that follows.
The opening through the chimney wall to the flue (the “breech”) must be lined with either a ceramic or metal cylinder, called the “thimble”, which is cemented securely in place. Most chimney breeches incorporate thimbles, but the fit must be snug and the joint between the thimble and the chimney wall must be cemented firmly.
A special piece called the “thimble sleeve,” slightly smaller in diameter than standard connectors and most thimbles, will facilitate the removal of the chimney connector system for inspection and cleaning. Thimble sleeves should be available from your local dealer.
To install a thimble sleeve, slide it into the breech until it is flush with the inner flue wall. Do not extend it into the actual flue passage, as this could interfere with the draft.
Thimble Sleeve
Chimney Connector
Fig. 6 The thimble, made of either ceramic or metal, must be cemented securely in place.
Flue
Keep sleeve end flush with flue tile
ST243
The thimble sleeve should protrude 1-2” (25-50mm) into the room. (Fig. 6) Use furnace cement and thin gasket­ing to seal the sleeve in place in the thimble. Secure the chimney connector to the outer end of the sleeve with sheet metal screws.
Without a thimble, a suitable length of chimney con­nector can be extended through the breech to the inner face of the flue liner, and cemented securely in place. Additional pieces of connector are then attached with sheet metal screws.
Fireplace Installations
The chimney connector may be connected to the chimney above the fireplace opening or through the fireplace.
Above the Fireplace
The Encore may be connected to a chimney above a fireplace opening. (Fig. 7) In such installations, the stove is positioned on the hearth in front of the fireplace and the chimney connector rises from the stove top and then angles ninety degrees back into the chimney. The chimney liner should extend to the point at which the chimney connector enters the chimney.
If the chimney connector from your installation enters the chimney above a fireplace, follow all the guidelines mentioned above for freestanding installations. In addi­tion, give special consideration to the following points:
Check the clearance between the stove and the
chimney connector, and any combustible trim or the mantel. Use the necessary combination of mantel, trim, and connector heat shields to achieve the required clearances.
Check the clearance between the chimney con-
nector and the ceiling. If no heat shields are used, the clearance should be at least 610 mm (24”). To find out how much this clearance may be reduced with heat shields, refer to the clearance chart on Page 12.
30003842
7
Encore Woodburning Stove
*
*
T
The fireplace damper must be sealed to prevent
room air from escaping up the flue. However, it must be possible to re-open the damper to inspect or clean the chimney.
Chimney Connector Shields
Flexible Connector
Mantel Shield
Fireplace Adapter Kit “Positive Con­nection”
* Check These Clear­ances
ST244
Fig. 7 In this installation, the chimney connector is attached to the chimney above the fireplace opening.
Mantel
Seal this off
Through the Fireplace
If your fireplace opening height is at least 675 mm (26¹⁄₂"), you may install an Encore through the opening using a “positive connection” kit, available from your local dealer. These positive connection kits ensure a tight fit between the stove flue collar and the chimney flue. (Fig. 8)
Fireplace installations, whether connected to the flue above or through the fireplace opening, have special clearance requirements to adjacent trim and the mantel. You’ll find the required safe clearances for Encore fire­place installations on Page 11.
Floor protection requirements also apply to fireplace installations. This information is on Page 9.
ST245
Fig. 8 In this installation, the chimney connector enters the firepalce opening and then connects to the chimney.
Figure 9 shows one method of passing a connector through a wall. All combustible material in the wall is cut away to provide the required 457 mm (18”) clearance for the connector. The resulting space must remain empty. A flush-mounted sheet metal cover may be used on one side only. If covers must be used on both sides, each cover must be mounted on noncombustible spac­ers at least 25 mm (1”) clear of the wall.
Your local dealer or your local building inspector can provide details for other approved methods of passing a chimney connector through a combustible wall in your area.
DO NOT CONNECT AN ENCORE TO ANY AIR DIS­TRIBUTION DUCT OR SYSTEM.
457 mm (18”) clear space all around the pipe
Wall Pass-Throughs
Whenever possible, design your installation so the con­nector does not pass through a combustible wall. If you are considering a wall pass-through in your installation, check with your building inspector before you begin. Also, check with the chimney connector manufacturer for any specific requirements.
Accessories are available for use as wall pass­throughs. If using one of these, make sure it has been tested and listed for use as a wall pass-through.
8
ST494
Fig. 9 An approved wall pass-through.
30003842
Hearths
This appliance must be installed on to hearth that meets the requirements of Part J of the Building Regu­lations 2000 (Combustion Appliances and Fuel Storage Systems). This can be achieved by ensuring that the hearth is constructed and sized in accordance with the guidelines included in section 2 of approved document ‘J’. The size and clearances of the hearth are as fol­lows:
The constructed hearth should be constructed in ac­cordance with the recommendations in document J, and should be of minimum width 840 mm and minimum depth 840 mm (if a free standing hearth b) above) or a minimum projection of 150 mm from the jamb (if a recessed hearth a) above).
Unless the stove hearth is completely noncombustible, the bottom heat shield should be installed to provide radiant protec­tion for framing which may be below the hearth. (Fig. 11)
Appliance
Doors
Costructional Hearth Dimensions as below
Encore Woodburning Stove
Wood framing requires pro­tection from radiant heat
Fig. 11 Combustible supporting timbers may lie beneath fireplace hearths, requiring additional floor protection.
At least 150 mm or to a suitable heat resistant wall
Appliance
Doors
ST247e
At least 150 mm
Perimeter should be clearly marked e.g. edge of superimposed hearth
a) Fireplace recess b) Free standing
Fig. 10 Noncombustible hearth surface dimensions.
Floor Protection for Fireplace Installations
Do not assume that your fireplace hearth is completely noncombustible.
Many fireplace hearths do not meet the “completely noncombustible” requirement because the brick or concrete in front of the fireplace opening is supported by heavy wood framing. (Fig. 11) Because heat passes through brick or concrete readily, it can easily pass through to the wood. As a result, such fireplace hearths can be a fire hazard and are considered a combustible floor.
Keep in mind, also, that many raised hearths will extend less than the required clearance from the front of the heater when it is installed. In such cases, sufficient floor protection as described above must be added in front of the hearth to satisfy the minimum floor protector requirement from the front of the stove: 406 mm (16”) from the front.
Hearth Surface Free of Com­bustible Material
Perimeter should be clearly marked e.g.
At least 300 mm
edge of superimposed hearth
ST912
Hearth rugs do not satisfy the requirements for floor protection.
Keep the Stove a Safe Distance
from Surrounding Materials
Both a stove and its chimney connector radiate heat in all directions when operating, and dangerous overheat­ing of nearby combustible materials can occur if they are too close to the heat. A safe installation requires that adequate clearance be maintained between the hot stove and its connector and nearby combustibles.
Clearance is the distance between either your stove (measured from the bottom edge of the stove’s top plate) or chimney connector, and nearby walls, floors, the ceiling, and any other fixed combustible surface. Your stove has special clearance requirements that have been established after careful research and test­ing to both US and European standards. These clear-
30003842
9
Encore Woodburning Stove
A
B
ance requirements must be strictly observed.
In addition, furnishings and other combustible materials must be kept away from the stove as well. In general, a distance of 1219 mm (48”) must be maintained between the stove and moveable combustible items such as dry­ing clothes, furniture, newspapers, firewood, etc. Keep­ing those clearance areas empty assures that nearby surfaces and objects will not overheat.
Safe Ways to Reduce Clearances
Clearances
As with any solid fuel heating stove, extremely high surface temperatures can occur, particularly in the event of uncontrolled operation, e.g. if the doors are inadvertently left open. It is crucial that suf­ficient clearances are allowed to any combustible surfaces, e.g. wooden mantels or lintels, and to timber framed (studded) walls even if they are faced with noncombustible board. Detailed information on fireplace and hearth construction is provided in section 2 of Document J, all installations must comply with these requirements or with the relevant National or local building standards.
Clearances to timber framed (studded) walls are in­cluded below. There are no specific minimum clearanc­es to solid noncombustible surfaces (e.g. the sides and rear of Inglenook fire openings constructed from solid masonry) other than to allow safe access to the controls of the stove. For this reason minimum side clearances of 125 mm, and a minimum rear clearance of 50 mm are recommended.
Minimum side clearance from combustible walls 610 mm (24”) measured from the side edge of the stove top. (Fig. 12, A)
Minimum distance from stove to movable combus­tible materials (e.g. furniture, drying clothes, etc.) 1220 mm (48”).
ST486a
Fig. 12 Minimum clearances.
Connecting Flue Pipe - Clearances
Single wall connecting fluepipes can reach extremely high temperatures; therefore, clearances from the con­necting fluepipe (chimney connector) must comply with the requirements of Part J of Building Regulations 2000 (Combustion Appliances and Fuel Storage Systems). This can be achieved by following the recommenda­tions of Approved Document ‘J’. These are as shown in Figure 13.
Summary of Clearances
Minimum recommended side clearances to non­combustible surfaces 125 mm (5”).
Minimum recommended rear clearance to noncom­bustible surfaces 50 mm (2”).
NOTE: The minimum thickness of solid noncombustible
materials is specified in section 2 of Document ‘J’, in relation to the clearance of the appliance from the sur­face. As a general rule, the thickness of solid noncom­bustible material forming the recess of a fireplace is a minimum of 200 mm.
Minimum rear clearance from combustible walls (e.g. timber framed or studded walls) 1000 mm (39³⁄₈”) measured from the rear edge of the stove top. (Fig. 12, B)
10
30003842
Loading...
+ 22 hidden pages