Orton packages small cones in pairs to minimize breakage during shipping. This video shows how to Separate a pair of conjoined Small Orton Cones. Watch the PRODUCT VIDEO below to learn how to separate them. Pyrometric cones measure heat-work (the effect of time and temperature). They are slender pyramids made from about 100 carefully controlled compositions. Each cone number is unique in measuring temperature within a small temperature range (less than 30°C). Cones measure the amount of heat absorbed over time. As the cone nears its maturing range, it softens and the tip begins to bend, drawn down by the influence of gravity.Junior cones are designed to be used in a KilnSitter. Warning! Do not view cones above earthenware temperature with the naked eye as this may cause cataracts. View through welders goggles - sunglasses are not suitable as they filter out UV, but not the infra-red, which is the damaging wavelength in this case! [click on the image thumbnails below to open/download the PDF for each] Download SDS Sheet for Orton Cones

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Pyrometric cones measure heat-work (the effect of time and temperature). They are slender pyramids made from about 100 carefully controlled compositions. Each cone number is unique in measuring temperature within a small temperature range (less than 30°C). Cones measure the amount of heat absorbed over time. As the cone nears its maturing range, it softens and the tip begins to bend, drawn down by the influence of gravity.Standard, or Large cones are used as witness cones to monitor the firing and verify temperature uniformity. A cone pack is necessary to support the cones during firing. If you have a kiln sitter on your kiln, you should use Junior cones. Warning! Do not view cones above earthenware temperature with the naked eye as this may cause cataracts. View through welders goggles - sunglasses are not suitable as they filter out UV, but not the infra-red, which is the damaging wavelength in this case! [click on the image thumbnails below to open/download the PDF for each] Download SDS Sheet for Orton Cones

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Pyrometric cones measure heat-work (the effect of time and temperature). They are slender pyramids made from about 100 carefully controlled compositions. Each cone number is unique in measuring temperature within a small temperature range (less than 30°C). Cones measure the amount of heat absorbed over time. As the cone nears its maturing range, it softens and the tip begins to bend, drawn down by the influence of gravity.Standard, or Large cones are used as witness cones to monitor the firing and verify temperature uniformity. A cone pack is necessary to support the cones during firing. If you have a kiln sitter on your kiln, you should use Junior cones. Warning! Do not view cones above earthenware temperature with the naked eye as this may cause cataracts. View through welders goggles - sunglasses are not suitable as they filter out UV, but not the infra-red, which is the damaging wavelength in this case! [click on the image thumbnails below to open/download the PDF for each] Download SDS Sheet for Orton Cones

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

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