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

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

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. Order now and restore reliable blower performance to your heating system!