Central Boiler manufactures outdoor wood and wood pellet furnaces. Established in 1984 the company's innovations, patents, and efficient, clean-burning technology have established them as the leader in the industry. Their Classic Edge HDX outdoor wood furnace models are among the top for efficiency of all stick-cord wood heating appliances EPA-certified in the USA. The Maxim M255 PE outdoor wood pellet furnace is among the top for efficiency for EPA-certified wood pellet heaters. Central Boiler's proprietary FireStar Combustion Controller features built-in wireless connectivity, giving you the ability to monitor your outdoor furnace in real-time on your smartphone. To learn more about Central Boiler products, visit CentralBoiler.com.

Otter Tail Power Company (OTP) is a full-service, investor-owned electric utility founded in 1909 that owns and operates generation, transmission, and distribution infrastructure. OTP provides electricity and energy services to 133,000+ residential, commercial, and industrial customers in 400+ communities across 70,000 square miles in Minnesota, North Dakota, and South Dakota. OTP is committed to transitioning to a lower-carbon energy future while maintaining delivery of dependable and least-cost electricity. OTP plans to own or purchase energy generation that is more than 55% renewable by 2030. OTP is a member of Midcontinent Independent System Operator (MISO), which oversees electric energy delivery to more than 45 million people by means of multiple utilities across the Central U.S. and the Canadian province of Manitoba.