The Williams Millivolt Wall Thermostat Kit provides a simple, reliable way to control your home's heat without complex programming or electronics. Designed specifically for Williams heaters and furnaces, this manual thermostat kit offers dependable operation with a smooth slide lever that adjusts temperature control from 50°F to 90°F. Its straightforward design makes it ideal for both residential and light commercial settings, allowing you to maintain consistent comfort through a trusted HVAC thermostat solution. Each kit includes 14 feet of wire, nuts, and mounting hardware for quick installation and secure connection. Because it operates through a millivolt thermostat system, no external power is required, making it perfect for homes that need a simple yet effective heater thermostat. Built by Williams Comfort Products, a company known for American-made quality since 1916, this heating accessory reflects more than a century of craftsmanship in every detail. Whether used to replace an older control or to finish a new heating setup, it ensures accurate, lasting performance in your home improvement projects.