We are the premier North American manufacture of Industrial, Commercial and Residential Electric Resistance and Hydronic Heaters, Thermostats, and Electric Heating Cables. Since 1958, our heaters have been proudly made in Seattle, WA.

We do things a bit differently than most.

We build the best heaters in the world, right here at home, driven by customer feedback to create technology that simplifies your life, enhances comfort, and minimizes energy waste.