is this manufactured in the usa?

DELPHI...3380 E. Jolly RD.Lansing MI 48910

We would not recommend this kiln going over 1600 degrees.

What kind of electrical outlet is needed?

Hello, This is a standard 3 prong 120v. I hope this helps. Thanks in advance and have a great day.

Can this product be used for ceramics, clay firing?

Yes, but make sure you have a good venting system in place. Per Delphi website: Thanks to unique heating elements, the Delphi EZ-Pro Deluxe can switch between fusing glass, enameling beads and firing ceramics and silver metal clay. Fully customizable firing schedules for ceramics, glass and metal clay will give you the freedom you've been looking for. This kiln includes a Kiln Accessory Pack which provides everything you need to get started: stand, posts, kiln shelf and shelf wash. Firing chamber measures 15" x 6-1/2" deep. See below for full product details. Pre-Set Firing Programs: 32 Pre-Set Ceramic Cones and 3 Speeds 4 Custom Ceramic Programs 8 Glass Firing Programs for 90 and 96 COE glass 3 batch Annealing Programs 5 Metal Clay Program Up to 22 Custom Programs for Glass and Metal Clay Use!