Heat Treat Oven (LB, KO, KH & HT)
Installation & Operating Manual
March 2021
Page 3of 9
It is the user’s responsibility to be knowledgeable regarding any and all contaminants, produced by the ware during firing and take steps to properly
and legally contain and dispose of these contaminants.
It is the user’s responsibility to provide ventilation capable of removing all gases, fumes and other airborne contaminants produced by the ware
during firing safely from work the area and building structure.
Do not store flammable or combustible products near or in the same room as the oven such as gasoline, paint, aerosol cans, paper, curtains,
plastics, etc. Store these items in another separate structure designed for this purpose.
Position the power supply cables, power supply conduit, controller cables, pyrometer thermocouple leads and other kiln control or power
management items in such a way as not to create a tripping or tangling hazard.
The area around the oven should be free of obstructions that interfere with the proper and safe operation of the oven.
Never place anything under or above the oven for storage. Absolutely nothing should be propped against the oven.
Oven Use Safety
The surface of the oven is hot and burn injuries are possible. Keep all children and unsupervised personnel away. Always wear protective
clothing, gloves and eyewear when operating and handling a hot oven.
You must throw the oven’s power switch to the OFF position before accessing the oven chamber. Do not access the oven chamber if the
ovens power switch is at the ON position. Under no circumstances should you touch the heating elements with your body or any other
devises like tools or ware. Electrical shock may result in serious injury or death.
Use care when accessing or looking into a hot oven. High heat escapes quickly and burn injury may result. When accessing or looking into a
hot oven, approach slowly and wear protective clothing and gloves designed to withstand high heat and eyewear capable of filtering Infrared
and Ultraviolet light.
Protective clothing should be worn when operating the oven and includes, but is not limited to, cotton clothing, heat resistant gloves and eyewear
capable of filtering Infrared and Ultraviolet light.
Do not heat salts or cyanide. Gases produced are TOXIC. Serious injury or death my result.
Do not operate the oven over the maximum temperature rating printed on the nameplate.
Never fire an oven unattended beyond its anticipated firing time.
Do not operate the oven with the door open.
Never allow the power cord to touch the oven. If the power cord, plug or receptacle becomes damaged discontinue use and replace immediately.
It is recommended that a fire extinguisher, capable of dousing an electrical fire, be accessible in the event of fire. Smoke detectors within the oven
room are also recommended.
Keep the oven door closed when not in use.
It is the user’s responsibility to have knowledge of the material intended to be heat treated/fired. If you are unsure as to the safety of firing a
particular material contact your materials supplier for guidance before doing so. If you remain unsure as to the safety of firing a particular
material do not do it. Firing hazards include materials that explode or produce toxic gases. Finished ware hazards include materials
containing lead. Materials containing lead should not be used for articles intended for food use.
Fire all materials according to the material manufacturer’s instructions. Improper firing may result in damage to the oven or material.
Do not use the oven to prepare food, heat a living space, dry clothes or ice laden articles or use as a storage devise. The oven is designed for one
purpose and one purpose only: the heat treating of metals.
An oven will remain very hot long after the firing is complete. All safety recommendations should be followed, even with the oven unpowered, to
avoid any burn injuries. Keep children and other unauthorized personnel away.
When firing is complete, and during periods of non-use, remove power from the oven by unplugging or by throwing the disconnect or breakers to the
OFF position.
