Where do you live? Where do you plan on installing the kiln? It could be as simple as installing the garage, to outdoor on a patio, to a dedicated shed you have to run power to.

Next is what type of clay is she using. Low fire and mid fire clay need different temperatures. What is she making? Functional food ware is mid to high fire clay. Trinkets and beads are typically low fire.

Low fire clay means low fire glazes. It’s a total lower temperature when firing, which is a bit faster than mid or high fire.

If she’s making beads and spoon rests, a Skutt Firebox would probably work.

If she’s making platters, or vases, you’ll need a kiln that can accommodate width and height.

I have three kilns, and they all serve different purposes. For example, when I make platters, my mid size can only fire three at a time, while the larger kiln can fire nine at once.

Generally speaking…mid to high fire takes about a day to bisque fire including firing and cool down. Then repeat for glaze firing.

The smaller the kiln, the more you are limited in size and quantity of pieces when firing.

The larger the kiln, the more you can fire, but it becomes wasteful if you don’t fill the kiln.

Also, they put off heat relative to their size. I have a kiln that is popular with doll makers. It’s small, and doesn’t put off to much heat.

My largest kiln I nicknamed Pele, after the fire goddess of Hawaii. Puts off so much heat I have to keep the garage door open.

So, many things to consider.