Thermodisc Switch | 110°F High-Speed Fan Limit Control for Jensen & US Stove Furnaces | TDF110-20F / 80389

Thermodisc Switch – 110°F High-Speed Fan Limit Control (TDF110-20F / 80389) for Jensen & US Stove Furnaces Control your distribution fan with precision using this high-speed Thermodisc switch (TDF110-20F / 80389). Designed to energize the fan when the firebox temperature reaches 110°F, this snap-disc switch ensures that your distribution blower only operates when your furnace is aggressively fired—cutting off at 130°F for added safety. Commonly used in Jensen and US Stove wood furnaces, this component plays a vital role in maintaining optimal heating and airflow. Key Features: • High-Speed Blower Activation – Triggers distribution fan at 110°F for rapid air movement • Open on Rise – Cuts off power when temperatures exceed 130°F (20°F differential) • Efficient Heat Distribution – Supports up to 1300 CFM airflow during high-demand heating • OEM-Quality Construction – Designed to match the specifications of your original switch Specifications: • Part Numbers: 80389, TDF110-20F, 60T11-610044 • Function: High-speed fan limit control • Close (Cut-In) Temperature: 110°F • Open (Cut-Out) Temperature: 130°F • Differential: 20°F • Contact Type: SPST, Normally Closed – Open on Rise • Application: Distribution blower fan controller • Terminals: Male spade connectors • OEM Status: Genuine US Stove replacement part Compatible Models: Jensen Wood Furnaces: 24AF, 24AG, 24AZ US Stove Models: Including 24A and compatible Jensen units Pairs well with: US Stove Company Parts This 110°F high-speed snap-disc is critical for safe and efficient operation of your furnace’s distribution fan. It ensures that your blower activates only when needed, enhancing comfort and protecting your stove from overheating.