Hyprotherm Furnace and Boiler Company offers simple products. There are no circuit boards or other complicated devices. We sell over 40 different top loaders along with forced air furnaces and standard boilers. Hyprotherm Manufacturing LLC 1116 Hwy 62 West, Salem, Arkansas 72576 870-895-2688 https://www.hyprothermboiler.com/ Facebook Twitter Vimeo