St. Croix Low Limit Fan Switch (80P20038-R / 20159) 110F Proof of Fire Snap Disc for Pellet & Corn Stoves
Also works on Apache Units
Ensure safe and reliable operation of your stove with the St. Croix Low Limit Fan Switch (80P20038-R / NBK 20159), also known as a Proof of Fire (P.O.F.) switch. This flush-mount, normally open snap disc switch closes when temperatures reach 110F, triggering the blower system. It reopens at 90F, preventing the blower from running when the stove is not producing adequate heat. Commonly mounted on the combustion blower housing, this switch is a critical safety and efficiency component in St. Croix pellet and corn stoves.
Key Features:
- Proof of Fire Functionality Confirms ignition before enabling blower operation
- Low Limit Temperature Activation Closes at 110F, reopens at 90F
- Flush Mount Snap Disc Compact design for secure, space-saving installation
- OEM-Compatible Replaces St. Croix part number 80P20038-R with equivalent NBK 20159
- Safe & Efficient Ensures the fan only runs when the stove is actively heating
Specifications:
- Part Numbers: 80P20038-R, NBK 20159, F110-20F
- Switch Type: Snap disc, normally open
- Close Temperature: 110F
- Open Temperature: 90F (20F differential)
- Mounting Style: Flush mount
- Application: Combustion blower / proof of fire switch
- OEM Status: Replacement for St. Croix original part
Compatible Models:
- Afton Bay
- Ashby-MF, Ashby-P
- Auburn
- Eclipse
- Element-MF, Element-P
- Greenfield
- Hastings
- Lancaster
- Lincoln SCR (Serial 0300)
- Lincoln SCS (Serial 301 and above)
- Pepin
- Prescott EX, Prescott EXP, Prescott EXL
- Revolution
- SCF-050
- York Insert
Always confirm compatibility with your owners manual before ordering.
Pairs well with:
St. Croix
Parts
Why Choose This Proof of Fire Switch?
A faulty snap switch can cause blower malfunction, leading to poor heating performance or safety risks. The St. Croix Low Limit Fan Switch (80P20038-R / NBK 20159) restores proper fan control, ensuring your stove runs only when its safe and producing heat. Built with durable materials, it provides long-lasting performance in demanding heating environments.
