Replacement thermister probe (ESP Probe) with black wires for Harman and Heatilator Eco-Choice stoves. ESP is short for exhaust sensing probe. Fits the following models:

Harman Pellet Stoves:

• Accentra Cast FS (Pre Serial # 00840167)
• Accentra Insert (Pre Serial # 008241201)
• Advance (Pre Serial # 008360001)
• Invincible Insert
• Invincible RS
• P38 Pellet Pro Plus (P38 +)
• P61 (Pre Serial # 008085055)
• P61A (Pre Serial # 008085803)
• P68 (Pre Serial # 008280309)
• PC45 (Pre Serial # 008055031)
• PF100 (Black Wires)
• XXV (Pre Serial # 008206292)

Harman Coal Stoves:

• DVC 500 (Pre Serial # 008065076)
• 44 Magnum

Heatilator Eco-Choice Pellet Stoves:

• BA100 (Black Wires)

Harman part # 3-20-11744
Comparable aftermarket part available here
Replaces old part numbers 1-00-00744 and 3-20-00744
OEM HHT part

May fit other models, please check your owner's manual for part number compatibility.