On the Easy-Fire e28T-3 kiln (and School-Master SM28T-3) you will find the cone rating is limited by the KW of the kiln.
For all Easy-Load, Renaissance and Hercules kilns (except the EL3048): With the door all the way open the kiln will go through a 34-1/2" wide door.
When you first turn on a kiln and the elements are cold the
amperage is higher. Once the elements heat up the resistance changes by
The Vent-Sure is controlled with a manual on/off switch on the cord of the vent. You could also plug it into a switched circuit if you want to. It can be on the whole time the kiln is firing.
The Kiln Sitter Tube assembly should stick into the kiln about 1". This will allow air to circulate around the cone and allow it to have a more accurate representation of the kiln temperature.