Why King? Since 1958 King Manufacturing Company has been a leader in the heating industry, with several patents to our credit. In this age of conglomeration, big business, and a global economy, King is still proudly family-owned and continuously based out of Seattle, Washington. Our products are made right here in the good ol’ U.S.A. In our 55 years we have seen exciting changes in the comfort and convenience of heating homes and businesses. Technology has improved to create exciting new possibilities in established heating systems. King continues to emphasize research and development, product quality, and genuine pride to ensure that our customers enjoy the best heating options possible at any given time. Residential or commercial electric heat: at King we anticipate your needs and provide you with the best!