A Critical component in the longevity of your kiln! The Vent-Sure automatic kiln vent helps prevent corrosion on the inside and outside of your kiln. It ensures that your kiln gets the longest possible life from your elements and electrical components. This is so important that, if you do not have a Vent-Sure installed on your kiln, the pro-rated element warranty is in a different category. Vent Blower The vent blower motor is normally mounted with the 12" outlet protruding through the wall. This keeps the heat of the kiln away from the motor (for long motor life) and keeps the motor vibration away from the kiln (which can cause ware to move, damage to the kiln, and misfiring of cones on a Kiln Sitter - if you have one). Vacuum is safer than pressure The vent tubing is kept under vacuum instead of pressure. This insures that any leak in the tubing does not blow noxious fumes into your room. External Venting is Better External venting is safer and surer than venting to the inside of your kiln room (even with a filter). Large Capacity The blower vents up to 130 CFM (cubic feet per minute). This will handle up to a 20 cubic foot kiln (and usually larger). More than one vent can be attached to a kiln. Minimal Electrical Power Needed The motor only pulls 1.37 amps. Six Foot Power cord with On/Off Switch The blower motor features a 6 foot long 120 volt 15 amp power cord. An On/Off switch is located on the cord. 240 volt models are available. Adjustable Vent Control A vacuum bypass on the kiln bypass/collection box adjusts the amount of venting from the system. Don’t waste heat and energy by venting more than you need. Adjust vent to kiln size. 15 feet of flexible aluminum duct 15 feet of flexible expandable aluminum 3" diameter duct is included along with necessary hose clamps. Longer lengths or lengths of 3" stove pipe can be used as well. Length can be as great as 60 feet horizontal or vertical with up to four 90 degree bends. Three Year Limited Warranty Because of our unique wall-mount fan we rarely replace fan motors. MET Listed to UL499 Standards The VENT-SURE Model VS-1 is c-MET-us listed for use with all c-MET-us listed L&L kilns. It is MET-us listed for all MET-us listed L&L kilns. Optional Multi-Mounting Bracket A special Multi-mounting bracket (M-V-MULT/00) is available to mount the vent motor on the floor or point the outlet vertically for ceiling installations. Optional Vent Doubler You can get a Vent Doubler option (M-V-VENT/DB) which allow you to vent two kilns that are each up to 10 cubic feet. Optional Vent Controller to turn vent on and off with DynaTrol The Vent Control will allow you to program the vent motor to turn on and off during the firing cycle. NOTE: Vents made by manufacturers other than L&L may not be listed to UL499 standards if used with an L&L kiln. The same is true in reverse - the L&L Vent-Sure is listed to UL499 standards only with L&L listed kilns. If you have any question please contact the manufacturer of your non-L&L vent system. Video, Specification Sheet and Instructions (PDFs downloadable through the L&L website)  

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VENT 2 KILNS W/ 1 MOTORNow you can vent 2 Kilns with one vent. The new 140 CFM Motor allows you to vent 2 kilns up to 12 Cubic Feet each, or one kiln between 12 and 24 Cubic Feet, with one Envirovent 2 Motor. WALL MOUNTED MEANS NO HEAT AND NO VIBRATIONThe new design is wall mounted. This moves the vent motor away from under the kiln so the motor is no longer exposed to the heat and can no longer transfer any vibration into the kiln. SPRING LOADED PLENUM CUP RETAINS SEAL THROUGHOUT FIRINGAs your kiln heats up the brick expands. When it expands the hot face of the kiln floor, the inside, expands more than the cold face or underside. This causes the slab to cup, or become slightly concave on the bottom. The result is that the center of the kiln floor moves upward at higher temperatures. The spring loaded cup follows the floor ensuring a tight seal throughout the firing process. NEGATIVE PRESSURE MEANS NO LEAKINGSince the vent is wall mounted it pulls the air through the duct work instead of pushing it. This means if you were to ever form a leak in your duct work the fumes would not be pushed into the room. ABILITY TO CONTROL WITH KILNMASTER OR GLASS MASTER CONTROLLERNow with the purchase of the new Skutt EnviroLink you can control exactly when the Envirovent 2 turns on and off during a firing on a GlassMaster or KilnMaster kiln. SAME QUALITY VENTINGThe EnviroVent 2 is a Downdraft Ventilation System designed to extract fumes from your electric kiln and vent them outdoors before they have a chance to enter the room. Because it is a DownDraft Ventilation System the EnviroVent 2 also improves the firing atmosphere in the kiln while it is protecting you from the odorous fumes that can be emitted from certain clay bodies and glazes when they are fired. Download/view a PDF of the EnviroVent2 Installation Manual. A helpful installation video is also available in the Product Videos tab. Here's How It Works A designated number of holes are drilled in the lid and floor of the kiln either in the factory or on location. A spring loaded plenum cup (see diagram) is placed under the kiln and tensioned between the floor of the kiln and the floor under the kiln. The holes in the floor of the kiln are drilled in a tight pattern so the plenum cup can cover them all. The other end of the cup is connected by 3" ducting to a fan which is generally mounted on the wall. On the opposite end of the fan the air is ducted through the wall to the outside air. The plenum cup has 3 additional holes from which it draws room temperature air to mix with the heated air from the kiln. This serves 2 purposes. Since the kiln air is mixed with cooler room air the air coming out of the end of the vent is never hotter than an average hair dryer. Secondly, the holes in the plenum cup are sized to reduce the vacuum on the kiln chamber so only a small amount of air is moving through the kiln. This ensures the firing time is not affected and the ware is not at risk. Better Heat Uniformity Most people are aware of the fact that heat rises. The EnviroVent 2 helps compensate for this rising heat by creating a flow of air moving back down the kiln chamber. As the air moves in a downward direction it is also deflected by ware and shelves causing turbulence. This turbulence helps move heat to cooler areas of the kiln like the center. Better Kiln Atmosphere When you are firing in an electric kiln you are firing in an Oxidation atmosphere. The EnviroVent 2 helps bring in more oxygen and flush out fumes which can form a reduction atmosphere. A reduction atmosphere can be desirable in a gas or wood fired kiln however it only causes problems in an electric kiln. Your elements will last longer, your glazes will be clearer and brighter and you will help prevent glazes migrating between pieces. Better Working Environment Prior to the introduction of venting systems it was still necessary to vent the kiln. This was done by propping the lid open with a wedge of brick until the kiln reached 1000°F (538 °C). Not only was this inconvenient, it also radiated the fumes right into the room. A Better Vent A new benefit of the EnviroVent 2 is that it is now a Negative Pressure System. This means that since the motor is pulling the air instead of pushing the air, if there is ever a hole in the ducting the fumes will not escape into the room. Also since the motor is now mounted away from the kiln, the motor is not affected by heat from the kiln nor does the vibrations from the motor affect the ware in the kiln. KILN VENTING FAQs Why is room air venting important to people?Kiln manufacturers have always recommended that firing areas have adequate ventilation. There are many reasons why kiln venting stressed more now. Today's environmental consciousness has created more awareness of potential health hazards. Studies have shown that carbon monoxide emissions can exceed OSHA Threshold Limit Values during bisque firing of electric kilns. Formaldehyde and sulfur dioxide also may be present in lower concentrations. Because of these concerns, kiln venting is required by building code in most areas. Why is internal kiln venting important to my ware?Ceramic and glass fusing materials, including greenware, glazes and lusters, contain organic compounds. The first phase of the firing process removes these gases or vapors from the ware before the higher temperature changes take place. These contaminants need to be removed from the kiln, and replaced with fresh air. This is especially important with red, orange, yellow and brown glazes and lusters, because they need oxygen for good results. How does it work? It is unique because it creates a downdraft venting effect, immediately mixing fumes with cooling air in a closed plenum chamber at the bottom of the kiln. The venting requires a few very small holes to be drilled in the lid and floor of the kiln . The fan motor mounts to the wall and vents the fumes to the outside much like a household dryer. Some specific problems related to poor venting include: Grayish inner areas (black core) when bisque firing earthenware. Unburned carbon in bisque ware that causes crazing, pinholes or blisters during glaze firing. Dulled surfaces and cloudy colors caused by sulfur gases. Weak colors in red-orange-yellow glazes. Color migration caused by glaze fumes depositing on nearby ware. Cones which fall improperly due to inadequate oxygen. If your firing chamber is not properly vented, your work is likely to suffer. Can you describe my kiln venting options? There are several options, ranked here in order of sophistication: Natural ventilation from open doors and windows. Room ventilation fans. Convection canopy collection hoods. Mechanical fan collection hoods. Mechanical downdraft vent systems. What is The EnviroLink?The EnviroLink is an accessory item that can be ordered for the EnviroVent and Envirovent 2 that works in conjunction with the Skutt KilnMaster or GlassMaster controller. It allows you to program the controller to automatically turn the vent on and off throughout a firing program. You simply enter an on/off setting for each segment of a Ramp and Hold program while you are programming the kiln. There are preset “vent programs” that can be run in conjunction with a ConeFire Mode or GlassFire Mode program as well. What are the main differences between venting systems? Window ventilation and convection hoods are passive—the warm fumes rise, and hopefully, are diluted or escape. This requires very large volumes of fresh air, which is costly in the winter. Collection hoods with electric fans do a better job of removing fumes, but fumes still enter the room air before they are collected. There is usually still a significant odor. External hoods do not help internal kiln performance. Mechanical downdraft systems, such as the Skutt EnviroVent, were developed to address both needs: Improved kiln firing chamber heat distribution and circulation for more consistent firing results; and Removal of fumes directly from the firing chamber before they can post a health hazard. Little or no odor can be detected. How much does heat distribution vary?A one-cone difference is common from top to bottom of an unvented kiln. You can observe this difference with cone groups set at different levels. The difference can grow great with larger electric kilns, especially when firing to low temperatures. For example, cone 03 has bent on a top shelf when only cone 05 has bent on a bottom shelf. Tests have shown a 30° difference top to bottom on high fires and 80° difference when low firing. How much does the EnviroVent help heat distribution?Heat naturally rises therefore the bottom of the kiln can fire cooler than the top, especially at lower temperature ranges. On tests conducted on a 10 cu. ft. kiln with pyrometers at six levels, it was found that the EnviroVent can cut temperature differences to about half of normal. The top-to-bottom differential was cut from 79° to 45°. Some users have reported even greater improvement in heat distribution. Does this require major Modifications to my kiln? No. You can use the twist drills we provide to bore though the soft firebrick by hand. The holes are quite small, shown here at actual size. As an example, the Skutt 1018 needs only two 15/64” holes in the floor and lid. We can pre-drill the kiln in the factory at the time it is ordered. Be sure to tell your distributor when ordering your new kiln that you want it drilled. Is installation difficult? No. You drill the few holes needed for your kiln, place the EnviroVent 2 spring loaded plenum cup under your kiln and mount the motor to the wall. We supply the aluminum drier ducting that is used between the plenum cup and the motor. Skutt even supplies the stainless sleeve that is needed to pass through the wall. It runs on 115V household current. If you install the EnviroVent on a kiln with a metal floor plate, you will need an electric drill. Must I always turn on the EnviroVent when I fire? Yes. The airflow is necessary to cool the EnviroVent's electric motor. However, you will want to use the EnviroVent for all types of firings in any case. Can I do burn-out firings?The EnviroVent was designed for conventional pottery techniques. A large load of burn-out pieces may momentarily overload the EnviroVent. We recommend smaller loads of burn-out pieces. Can I rearrange my kiln area easily? Certainly, The vented air is cool enough to allow you to use flexible ducting away from the kiln. There are no overhead brackets or pulleys to restrict -your locations. Does the EnviroVent change firing times? There may be a slight increase of 10 to 15 minutes to shut-off in an 8 hour firing. However, your total kiln firing cycle will probably be shorter because the EnviroVent removes heat from the kiln after shut-off without causing thermal shock. What does the UL listing of a kiln vent system mean?It means that the manufacturer has submitted the vent unit, properly installed on specific kiln models, to Underwriters' Laboratories for rigorous testing under actual high-heat firing conditions. When installed on Skutt UL kilns, the EnviroVent is the only UL listed downdraft vent system. Some kiln vents use an electric motor which may have been UL listed for general room temperature use. This does not make their vents UL listed.

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Orton received the Original patent in 1988 for Downdraft venting of Electric Kilns. Today Orton offers their most advanced Venting System “VentMaster” that is easy to install, prevents fumes from entering the workspace, makes sure there is enough oxygen in the kiln for colors to fully develop, improves the temperature uniformity inside the kiln and helps increase the life of the heating elements. Includes: Motor and Housing 4 ft. length of 2” diameter high temperature hose cast aluminum collection cup with spring loaded and threaded pedestal gasket instruction manual kiln safety manual ¼” drill bit vent cap samples of Orton Self-supporting pyrometric cones Cones and Firing pamphlet Motor Specs 115 Volt, 60 Hz, 1.1 amp household current, 73 CFM, shipping weight 10 lbs. CE Certified /ETL listed. Able to vent two kilns simultaneously with the addition of the Orton Expansion Kit. In 1988, Orton received a patent for downdraft venting of electric kilns. Since that time, downdraft venting has become the standard method used to vent fumes from electric kilns. With downdraft venting, gases are pulled out of the kiln near the bottom of the kiln and then mixed with room air and exhausted to the outside through a duct. Downdraft venting systems are considered better than hoods because they improve firing conditions in the kiln while removing essentially all fumes from the kiln room. VentMaster is capable of venting two kilns at once and is easy to install! The motor / blower is built from a non-corrosive, lightweight plastic that allows you keep it on the floor, or mount VentMaster to the wall! Why Vent My Kiln? All products fired in electric kilns contain organic materials that make carbon monoxide and other fumes when they are burned. Fumes released may contain sulfur oxides, hydrogen fluoride and metal vapors, depending on the products fired. Carbon monoxide and other fumes can affect the color and properties of the fired product if they are not removed from the kiln earlier in the firing. Red, green, gold and similar products are particularly affected by carbon monoxide at temperatures where the color develops. Removing released fumes from your work environment is very important, since these are unhealthy to breathe on a regular basis. Carbon monoxide can cause headaches and nausea and other potentially serious health problems. Why VentMaster? During operation, the KilnVent system keeps the kiln under a slight negative pressure. This pulls the fumes out of the kiln and pulls in a small amount of fresh air. Firing times are essentially the same. The fumes are exhausted directly into a duct system and removed from the kiln room. Improved air flow in the kiln results in more uniform temperatures, reducing hot and cold spots. Temperature Uniformity During several test firings without VentMaster, total temperature variances of 77° were produced due to the lack of air circulation. While firing with VentMaster, the temperature variance is reduced to 30°, over 38% more uniform. With the use of VentMaster, the hot air typically at the top of the kiln, is pulled to the bottom. The variance can be seen above for both scenarios. The firing cones (circled) can be visually compared to determine the approximate variance from top to bottom. Health and Safety Issues OSHA has set standards for carbon monoxide exposure of 35 ppm (parts per million) for long- term exposure and 200 PPM for short-term exposure. Independent testing has shown that fumes near the kiln can exceed 200 PPM near the kiln during the firing of greenware. This can cause headaches, fatigue, sore throats and nausea. When properly installed and operated, a downdraft vent removes ALL harmful fumes and provides a safer working environment. Regulations Most states and localities have set venting requirements for firing kilns in public places. Your local and state health board should have this information. The Uniform Mechanical Code lists accepted venting methods. The downdraft system made by Orton is listed in the 1992 approved Code. Orton downdraft vents have been certified by ETL (Intertek Testing Services NA, Inc.), an Internationally Recognized Testing Laboratory). VentMaster has earned the right to bear the ETL mark in the US, CETL in Canada and CE in European Markets.

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The EnviroVent 2 has the capability of venting 2 large kilns (up to 12 cu/ft chambers) if you purchase the optional Dual Intake Kit. The kit is easy to install and comes with everything you need. It includes the ducting Y, the additional ducting and the collection cup. It also necessary to purchase this kit if you are venting a kiln over 12 Cu/Ft like the KM1627-3 PK because of the need to extract more fumes. KILN VENTING FAQs Q.Why is room air venting important to people? A. Kiln manufacturers have always recommended that firing areas have adequate ventilation. There are many reasons why kiln venting stressed more now. Today's environmental consciousness has created more awareness of potential health hazards. Studies have shown that carbon monoxide emissions can exceed OSHA Threshold Limit Values during bisque firing of electric kilns. Formaldehyde and sulfur dioxide also may be present in lower concentrations. Because of these concerns, kiln venting is required by building code in most areas. Q.Why is internal kiln venting important to my ware? A. Ceramic and glass fusing materials, including greenware, glazes and lusters, contain organic compounds. The first phase of the firing process removes these gases or vapors from the ware before the higher temperature changes take place. These contaminants need to be removed from the kiln, and replaced with fresh air. This is especially important with red, orange, yellow and brown glazes and lusters, because they need oxygen for good results. Some specific problems related to poor venting include: Grayish inner areas (black core) when bisque firing earthenware. Unburned carbon in bisque ware that causes crazing, pinholes or blisters during glaze firing. Dulled surfaces and cloudy colors caused by sulfur gases. Weak colors in red-orange-yellow glazes. Color migration caused by glaze fumes depositing on nearby ware. Cones which fall improperly due to inadequate oxygen. If your firing chamber is not properly vented, your work is likely to suffer. Q.Can you describe my kiln venting options? A. There are several options, ranked here in order of sophistication: Natural ventilation from open doors and windows. Room ventilation fans. Convection canopy collection hoods. Mechanical fan collection hoods. Mechanical downdraft vent systems. Q.What are the main differences between venting systems? A. Window ventilation and convection hoods are passive—the warm fumes rise, and hopefully, are diluted or escape. This requires very large volumes of fresh air, which is costly in the winter. Collection hoods with electric fans do a better job of removing fumes, but fumes still enter the room air before they are collected. There is usually still a significant odor. External hoods do not help internal kiln performance. Mechanical downdraft systems, such as the Skutt EnviroVent, were developed to address both needs: Improved kiln firing chamber heat distribution and circulation for more consistent firing results; and Removal of fumes directly from the firing chamber before they can post a health hazard. Little or no odor can be detected. Q. How much does heat distribution vary? A. A one-cone difference is common from top to bottom of an unvented kiln. You can observe this difference with cone groups set at different levels. The difference can grow great with larger electric kilns, especially when firing to low temperatures. For example, cone 03 has bent on a top shelf when only cone 05 has bent on a bottom shelf. Tests have shown a 30° difference top to bottom on high fires and 80° difference when low firing. Q. How much does the EnviroVent help heat distribution? A. Heat naturally rises therefore the bottom of the kiln can fire cooler than the top, especially at lower temperature ranges. On tests conducted on a 10 cu. ft. kiln with pyrometers at six levels, it was found that the EnviroVent can cut temperature differences to about half of normal. The top-to-bottom differential was cut from 79° to 45°. Some users have reported even greater improvement in heat distribution. Q. How does it work? A. Developed jointly with the Edward Orton Jr. Ceramic Foundation, the EnviroVent is protected under U.S. patent 4,863,374. It is unique because it creates a downdraft venting effect, immediately mixing fumes with cooling air in a closed plenum chamber at the bottom of the kiln. The venting requires a few very small holes to be drilled in the lid and floor of the kiln . The fan motor mounts to the wall and vents the fumes to the outside much like a household dryer. Q. Does this require major Modifications to my kiln? A. No. You can use the twist drills we provide to bore though the soft firebrick by hand. The holes are quite small, shown here at actual size. As an example, the Skutt 1018 needs only two 15/64” holes in the floor and lid. We can pre-drill the kiln in the factory at the time it is ordered. Be sure to tell your distributor when ordering your new kiln that you want it drilled. Q. Is installation difficult? A. No. You drill the few holes needed for your kiln, place the EnviroVent 2 spring loaded plenum cup under your kiln and mount the motor to the wall. We supply the aluminum drier ducting that is used between the plenum cup and the motor. Skutt even supplies the stainless sleeve that is needed to pass through the wall. It runs on 115V household current. If you install the EnviroVent on a kiln with a metal floor plate, you will need an electric drill. Q. Must I always turn on the EnviroVent when I fire? A. Yes. The airflow is necessary to cool the EnviroVent's electric motor. However, you will want to use the EnviroVent for all types of firings in any case. Q. Can I do burn-out firings? A. The EnviroVent was designed for conventional pottery techniques. A large load of burn-out pieces may momentarily overload the EnviroVent. We recommend smaller loads of burn-out pieces. Q. Can I rearrange my kiln area easily? A. Certainly, The vented air is cool enough to allow you to use flexible ducting away from the kiln. There are no overhead brackets or pulleys to restrict -your locations. Q. Does the EnviroVent change firing times? A. There may be a slight increase of 10 to 15 minutes to shut-off in an 8 hour firing. However, your total kiln firing cycle will probably be shorter because the EnviroVent removes heat from the kiln after shut-off without causing thermal shock. Q. What does the UL listing of a kiln vent system mean? A. It means that the manufacturer has submitted the vent unit, properly installed on specific kiln models, to Underwriters' Laboratories for rigorous testing under actual high-heat firing conditions. When installed on Skutt UL kilns, the EnviroVent is the only UL listed downdraft vent system. Some kiln vents use an electric motor which may have been UL listed for general room temperature use. This does not make their vents UL listed. Q. What is The EnviroLink? A. The EnviroLink is an accessory item that can be ordered for the EnviroVent and Envirovent 2 that works in conjunction with the Skutt KilnMaster or GlassMaster controller. It allows you to program the controller to automatically turn the vent on and off throughout a firing program. You simply enter an on/off setting for each segment of a Ramp and Hold program while you are programming the kiln. There are preset “vent programs” that can be run in conjunction with a ConeFire Mode or GlassFire Mode program as well.

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Envirolink The EnviroLink allows your controller to turn your EnviroVent 2 on or off based on how you program the kiln. Often times people will forget to turn on or off their vent. With the EnviroLink the controller does it for you. It is very easy to install. Simply plug your vent into the EnviroLink and connect the control wire from the EnviroLink into output 4 of your KilnMaster Controller. If you have a Kilnmaster kiln with a LinkBoard it is even easier, just plug the control wire into the socket on the side of the kiln.There are 3 different settings on your kilnmaster you can set to control the envirolink which located in configurations section of programming menu.Option A – In ConeFire Mode the Vent will turn on when you press start and will turn off when the kiln reaches 150 F (65 C). In Ramp/Hold Mode the controller will ask you if you want the vent on or off for each segment programmed. This is the same for all 3 options. Option B – During a ConeFire Program the vent is on up to 1450 F (788 C) and then turns the vent back on during the cooling cycle at 1000 F (538 C) and stays on until the kiln reaches 150F (65 C). This setting for those people firing Crystal Glazes. Option C – During ConeFire Mode the Vent stays off throughout the entire firing.

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Have a Rolling Stand? Have an EnviroVent2? You may want to purchase the new EV2 Rolling Stand Adapter. The new adapter is a bracket that is designed to fit in between the cross supports of your Skutt Rolling Kiln Stand. The EnviroVent2 collection cup is spring loaded so it can move up and down with the bottom of the kiln as the brick expands and contracts. With the new bracket, the foot of the collection cup is spring loaded against the bracket instead of the floor. This way, when you roll your kiln, the cup goes with it. Now obviously you can't roll it very far because it it is attached with ducting to the motor, but it does allow you to move it for cleaning without having to reposition the cup. KILN VENTING FAQs Q.Why is room air venting important to people?A. Kiln manufacturers have always recommended that firing areas have adequate ventilation. There are many reasons why kiln venting stressed more now. Today's environmental consciousness has created more awareness of potential health hazards. Studies have shown that carbon monoxide emissions can exceed OSHA Threshold Limit Values during bisque firing of electric kilns. Formaldehyde and sulfur dioxide also may be present in lower concentrations. Because of these concerns, kiln venting is required by building code in most areas. Q.Why is internal kiln venting important to my ware?A. Ceramic and glass fusing materials, including greenware, glazes and lusters, contain organic compounds. The first phase of the firing process removes these gases or vapors from the ware before the higher temperature changes take place. These contaminants need to be removed from the kiln, and replaced with fresh air. This is especially important with red, orange, yellow and brown glazes and lusters, because they need oxygen for good results. Some specific problems related to poor venting include: Grayish inner areas (black core) when bisque firing earthenware. Unburned carbon in bisque ware that causes crazing, pinholes or blisters during glaze firing. Dulled surfaces and cloudy colors caused by sulfur gases. Weak colors in red-orange-yellow glazes. Color migration caused by glaze fumes depositing on nearby ware. Cones which fall improperly due to inadequate oxygen. If your firing chamber is not properly vented, your work is likely to suffer. Q.Can you describe my kiln venting options? A. There are several options, ranked here in order of sophistication: Natural ventilation from open doors and windows. Room ventilation fans. Convection canopy collection hoods. Mechanical fan collection hoods. Mechanical downdraft vent systems. Q.What are the main differences between venting systems? A. Window ventilation and convection hoods are passive—the warm fumes rise, and hopefully, are diluted or escape. This requires very large volumes of fresh air, which is costly in the winter. Collection hoods with electric fans do a better job of removing fumes, but fumes still enter the room air before they are collected. There is usually still a significant odor. External hoods do not help internal kiln performance. Mechanical downdraft systems, such as the Skutt EnviroVent, were developed to address both needs: Improved kiln firing chamber heat distribution and circulation for more consistent firing results; and Removal of fumes directly from the firing chamber before they can post a health hazard. Little or no odor can be detected. Q. How much does heat distribution vary?A. A one-cone difference is common from top to bottom of an unvented kiln. You can observe this difference with cone groups set at different levels. The difference can grow great with larger electric kilns, especially when firing to low temperatures. For example, cone 03 has bent on a top shelf when only cone 05 has bent on a bottom shelf. Tests have shown a 30° difference top to bottom on high fires and 80° difference when low firing. Q. How much does the EnviroVent help heat distribution? A. Heat naturally rises therefore the bottom of the kiln can fire cooler than the top, especially at lower temperature ranges. On tests conducted on a 10 cu. ft. kiln with pyrometers at six levels, it was found that the EnviroVent can cut temperature differences to about half of normal. The top-to-bottom differential was cut from 79° to 45°. Some users have reported even greater improvement in heat distribution. Q. How does it work? A. Developed jointly with the Edward Orton Jr. Ceramic Foundation, the EnviroVent is protected under U.S. patent 4,863,374. It is unique because it creates a downdraft venting effect, immediately mixing fumes with cooling air in a closed plenum chamber at the bottom of the kiln. The venting requires a few very small holes to be drilled in the lid and floor of the kiln . The fan motor mounts to the wall and vents the fumes to the outside much like a household dryer. Q. Does this require major Modifications to my kiln? A. No. You can use the twist drills we provide to bore though the soft firebrick by hand. The holes are quite small, shown here at actual size. As an example, the Skutt 1018 needs only two 15/64” holes in the floor and lid. We can pre-drill the kiln in the factory at the time it is ordered. Be sure to tell your distributor when ordering your new kiln that you want it drilled. Q. Is installation difficult? A. No. You drill the few holes needed for your kiln, place the EnviroVent 2 spring loaded plenum cup under your kiln and mount the motor to the wall. We supply the aluminum drier ducting that is used between the plenum cup and the motor. Skutt even supplies the stainless sleeve that is needed to pass through the wall. It runs on 115V household current. If you install the EnviroVent on a kiln with a metal floor plate, you will need an electric drill. Q. Must I always turn on the EnviroVent when I fire? A. Yes. The airflow is necessary to cool the EnviroVent's electric motor. However, you will want to use the EnviroVent for all types of firings in any case. Q. Can I do burn-out firings? A. The EnviroVent was designed for conventional pottery techniques. A large load of burn-out pieces may momentarily overload the EnviroVent. We recommend smaller loads of burn-out pieces. Q. Can I rearrange my kiln area easily? A. Certainly, The vented air is cool enough to allow you to use flexible ducting away from the kiln. There are no overhead brackets or pulleys to restrict -your locations. Q. Does the EnviroVent change firing times? A. There may be a slight increase of 10 to 15 minutes to shut-off in an 8 hour firing. However, your total kiln firing cycle will probably be shorter because the EnviroVent removes heat from the kiln after shut-off without causing thermal shock. Q. What does the UL listing of a kiln vent system mean?A. It means that the manufacturer has submitted the vent unit, properly installed on specific kiln models, to Underwriters' Laboratories for rigorous testing under actual high-heat firing conditions. When installed on Skutt UL kilns, the EnviroVent is the only UL listed downdraft vent system. Some kiln vents use an electric motor which may have been UL listed for general room temperature use. This does not make their vents UL listed. Q. What is The EnviroLink?A. The EnviroLink is an accessory item that can be ordered for the EnviroVent and Envirovent 2 that works in conjunction with the Skutt KilnMaster or GlassMaster controller. It allows you to program the controller to automatically turn the vent on and off throughout a firing program. You simply enter an on/off setting for each segment of a Ramp and Hold program while you are programming the kiln. There are preset “vent programs” that can be run in conjunction with a ConeFire Mode or GlassFire Mode program as well.

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Vent Doubler for venting two kilns with one vent This accessory allows you to connect two kilns to a Vent-Sure vent system. It can be added to an existing vent system or can be ordered with a new vent. In some cases you may be able to fire two kilns at once. The Vent-Sure has enough force to vent at least 20 cubic feet of kiln. That means, for instance, that two e28T-3 kilns could be vented while firing at the same time. The "T" duct fitting attaches to the inlet of the fan motor. There are two dampers on it to allow you to both control the flow and to shut off one or the other kiln. Flexible aluminum dryer duct goes between the ends of this "T" duct and the two fittings that attach to the kiln stands. WHAT THE OPTIONAL “VENT-DOUBLER” INCLUDES One 3" galvanized "T" duct fitting with dampers with self-drilling screws to attach it to the motor assembly One extra Collection Box with slide damper One extra 15' Flexible Aluminum Duct (one is normally included with the Vent-Sure). There are two clamps per Flexible Duct Assembly One Floor/Wall bracket. NOTE ABOUT PHOTO The photo above shows an entire installation to illustrate how the system is put together. The Vent Doubling System does not include stands or the Multi-Mounting Bracket. It only includes what is mentioned above. (Consider buying a Multi-Mounting Bracket if you need to install the system like the photograph shows).

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Compatible with the Orton VentMaster. Includes collector cup and hose to vent a 2nd kiln

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Wedge brick to prop open your lid for venting.

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Orton received the Original patent in 1988 for Downdraft venting of Electric Kilns. Today Orton offers their most advanced Venting System “VentMaster” that is easy to install, prevents fumes from entering the workspace, makes sure there is enough oxygen in the kiln for colors to fully develop, improves the temperature uniformity inside the kiln and helps increase the life of the heating elements. This item is manufacturer-installed option and only available when ordered with a new Cone Art kiln. Why Vent My Kiln? All products fired in electric kilns contain organic materials that make carbon monoxide and other fumes when they are burned. Fumes released may contain sulfur oxides, hydrogen fluoride and metal vapors, depending on the products fired. Carbon monoxide and other fumes can affect the color and properties of the fired product if they are not removed from the kiln earlier in the firing. Red, green, gold and similar products are particularly affected by carbon monoxide at temperatures where the color develops. Removing released fumes from your work environment is very important, since these are unhealthy to breathe on a regular basis. Carbon monoxide can cause headaches and nausea and other potentially serious health problems. Why VentMaster? During operation, the KilnVent system keeps the kiln under a slight negative pressure. This pulls the fumes out of the kiln and pulls in a small amount of fresh air. Firing times are essentially the same. The fumes are exhausted directly into a duct system and removed from the kiln room. Improved air flow in the kiln results in more uniform temperatures, reducing hot and cold spots. Temperature Uniformity During several test firings without VentMaster, total temperature variances of 77° were produced due to the lack of air circulation. While firing with VentMaster, the temperature variance is reduced to 30°, over 38% more uniform. With the use of VentMaster, the hot air typically at the top of the kiln, is pulled to the bottom. The variance can be seen above for both scenarios. The firing cones (circled) can be visually compared to determine the approximate variance from top to bottom. Health and Safety Issues OSHA has set standards for carbon monoxide exposure of 35 ppm (parts per million) for long- term exposure and 200 PPM for short-term exposure. Independent testing has shown that fumes near the kiln can exceed 200 PPM near the kiln during the firing of greenware. This can cause headaches, fatigue, sore throats and nausea. When properly installed and operated, a downdraft vent removes ALL harmful fumes and provides a safer working environment. Regulations Most states and localities have set venting requirements for firing kilns in public places. Your local and state health board should have this information. The Uniform Mechanical Code lists accepted venting methods. The downdraft system made by Orton is listed in the 1992 approved Code. Orton downdraft vents have been certified by ETL (Intertek Testing Services NA, Inc.), an Internationally Recognized Testing Laboratory). VentMaster has earned the right to bear the ETL mark in the US, CETL in Canada and CE in European Markets.

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Almost every kiln that Skutt sells comes with a stand but most of them are designed to stay put. Trying to move them with the kiln setting on them could result in a broken stand or even worse a broken kiln, or even worse, a broken you. Often times you may want to move your kiln to clean under it or just get it out of the way when it is not being used. Think how nice it would be to get that car in the garage every once in a while. Our rolling stands are constructed out of heavy duty, welded square tubing and fitted with high quality, locking steel castors ont models designed for large kilns. Steel castors will not develop flat spots if they sit too long in one spot unlike rubber or plastic wheels. They provide the recommended clearances from the kiln to the floor and many are adjustable in order to raise the loading level to a height that is comfortable for you. This stand will position your kiln base 8" above the floor and is NOT adjustable.

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Almost every kiln that Skutt sells comes with a stand but most of them are designed to stay put. Trying to move them with the kiln setting on them could result in a broken stand or even worse a broken kiln, or even worse, a broken you. Often times you may want to move your kiln to clean under it or just get it out of the way when it is not being used. Think how nice it would be to get that car in the garage every once in a while. Our rolling stands are constructed out of heavy duty, welded square tubing and fitted with high quality, locking steel castors ont models designed for large kilns. Steel castors will not develop flat spots if they sit too long in one spot unlike rubber or plastic wheels. They provide the recommended clearances from the kiln to the floor and many are adjustable in order to raise the loading level to a height that is comfortable for you. This stand will position your kiln base 8" above the floor and is NOT adjustable.

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Almost every kiln that Skutt sells comes with a stand but most of them are designed to stay put. Trying to move them with the kiln setting on them could result in a broken stand or even worse a broken kiln, or even worse, a broken you. Often times you may want to move your kiln to clean under it or just get it out of the way when it is not being used. Think how nice it would be to get that car in the garage every once in a while. Our rolling stands are constructed out of heavy duty, welded square tubing and fitted with high quality, locking steel castors ont models designed for large kilns. Steel castors will not develop flat spots if they sit too long in one spot unlike rubber or plastic wheels. They provide the recommended clearances from the kiln to the floor and many are adjustable in order to raise the loading level to a height that is comfortable for you. This stand will position your kiln base 8" above the floor and is NOT adjustable.

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Almost every kiln that Skutt sells comes with a stand but most of them are designed to stay put. Trying to move them with the kiln setting on them could result in a broken stand or even worse a broken kiln, or even worse, a broken you. Often times you may want to move your kiln to clean under it or just get it out of the way when it is not being used. Think how nice it would be to get that car in the garage every once in a while. Our rolling stands are constructed out of heavy duty, welded square tubing and fitted with high quality, locking steel castors ont models designed for large kilns. Steel castors will not develop flat spots if they sit too long in one spot unlike rubber or plastic wheels. They provide the recommended clearances from the kiln to the floor and many are adjustable in order to raise the loading level to a height that is comfortable for you.

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Almost every kiln that Skutt sells comes with a stand but most of them are designed to stay put. Trying to move them with the kiln setting on them could result in a broken stand or even worse a broken kiln, or even worse, a broken you. Often times you may want to move your kiln to clean under it or just get it out of the way when it is not being used. Think how nice it would be to get that car in the garage every once in a while. Our rolling stands are constructed out of heavy duty, welded square tubing and fitted with high quality, locking steel castors ont models designed for large kilns. Steel castors will not develop flat spots if they sit too long in one spot unlike rubber or plastic wheels. They provide the recommended clearances from the kiln to the floor and many are adjustable in order to raise the loading level to a height that is comfortable for you. This stand will position your kiln base 8" above the floor and is NOT adjustable.

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