Which voltage and/or phase should I select?

When you’re preparing to install a kiln, one of the most important things to confirm is the type of electrical service available in your space. In the United States, the vast majority of homes rely on 240-volt single-phase power. This is the standard for residential electric dryers, ovens, and most studio kilns — which makes it compatible for many small and midsize ceramic setups.

While 208 volts does exist in the U.S., it’s not typical in residential neighborhoods. You’ll most often find 208-volt service in commercial buildings, schools, universities, and large industrial facilities — places designed to support higher and more complex electrical loads. Three-phase power falls into this same category. Unless a home was intentionally converted for commercial use, it’s extremely unlikely to have three-phase service.

Because voltage affects how safely and efficiently your kiln operates, it’s essential to verify what you actually have rather than assuming. The easiest and safest way to confirm is to:

• Consult a licensed electrician, who can take a reading and verify your configuration, or

• Check with your local utility provider for official documentation on the service entering your home or studio.

Accurate voltage information ensures you select the right kiln model, the right controller, and the correct wiring setup — giving you reliable firings and peace of mind from the start.