Electrowarmth makes electric warming pads for beds, massage tables and 12-volt RV and truck bunks, helping people sleep or work comfortably in cold conditions. Based in Danville, Ohio, the company’s mattress warmers stand out for their broad size selection, adjustable heat and single- or dual-control options, while its bunk pads are designed to warm a sleeper without idling the vehicle. Its massage-table warmers carry ETL approval and include automatic safety shutoff.
ETL Approved
ETL
Quality certification
WarmeeWarmee makes cuddly heated blankets, cozy throws, and heated mattress pads. Its products feature patented Invisiwire technology, Wi‑Fi connectivity, and phone, Google Assistant, or Alexa control.New York, NY
Electrolock IncFounded as a small Ohio business in 1957, Electrolock manufactures custom electrical and thermal insulation solutions for high-voltage equipment, batteries, wire and cable. Its engineers combine materials design, converting, and analytical and high-voltage testing to develop insulation that fits demanding applications, including protection against thermal runaway in electric-vehicle batteries. Electrolock operates from Ohio and South Carolina and serves customers worldwide.HIRAM, OH
Heat and Sensor TechnologyStarting in a Lebanon, Ohio garage in late 2002, Heat and Sensor Technology manufactures electric heaters and temperature sensors for customers ranging from small businesses to global OEMs. Its 40,000-square-foot facility supports stock orders alongside mass-customized designs, including the PanelMAX radiant heater line acquired from Watlow in 2016. The company’s products are made in the United States and serve customers across North America, Europe, Asia, and beyond.LEBANON, OH
Sta-Warm Electric CompanySince 1921, Ravenna-based Sta-Warm Electric Company has designed and built electrically heated industrial equipment for melting, holding, moving, and dispensing temperature-sensitive materials. Its custom-built tanks and accessories use low-wattage, evenly distributed heat to help prevent hot spots and material degradation, with systems made in the USA for customers across national and international markets.RAVENNA, OH