my 8x8x13 is gas. well kinda. I have (4) 75,000 BTU heaters under it.
http://www.grainger.com/Grainger/wwg...mId=1612528977
They are Naural Gas and NO open flame to worry about. This oven has been up and running for 10-15 years. NO problems at all. Use to use it for heat treating aluminum bumpers. Now used for powdercoating.
Heres a diagram of the electronics.
http://www.cecoatings.com/images/Equipment/diagram1.jpg
This is the oven
http://www.cecoatings.com/images/Equ...enandbooth.jpg
Its on a 1ft I beam. and the burners are under it. they its stitch welded on that. I can take more pic's if needed.
Im also in the middle of building one more oven
6x6x8 Im using (1) 100,000 BTU heater in this one.
http://www.grainger.com/Grainger/wwg...mId=1612528989
this one uses more ifficient mineral wool. so should be better.
Same kind of electronics, just a smaller oven.
I'm resizing and uploading new oven pic's later.