Harman Thermister Probe - ESP Probe (Red Wires)(3-20-00844)

Part number: 3-20-00844
Usually Ships in 1 to 2 Business Days
Part Type:
Thermodiscs & Switches
Warranty Period:
30 Days
Harman Thermister Probe - ESP Probe (Red Wires)(3-20-00844)

Replacement thermister probe (ESP Probe) for Harman and Heatilator Eco Choice stoves. ESP is short for Exhaust Sensing Probe. This is the probe with two (2) red wires. Click on the photo to enlarge and view other angles. Fits the following HHT stove models:

Harman Pellet Stoves:

  • Accentra Cast FS (Serial # 00840167 and higher)
  • Accentra Insert (Serial # 008241201 and higher)
  • Accentra 52i
  • Advance (Serial # 008360001 and higher)
  • HF60
  • P35i Pellet Insert
  • P43
  • P61 (Serial # 008085055 and higher)
  • P61A (Serial # 008085803 and higher)
  • P68 (Serial # 008280309 and higher)
  • PB105
  • PC45 (Serial # 008055031 and higher)
  • PF100 (Red Wires)
  • XXV (Serial # 008206292 and higher)

Harman Coal Stoves:

  • DVC 500 (Serial # 008065076 and higher)

Heatilator Eco-Choice Pellet Stoves:

  • BH60
  • BH105
  • BA100 (Red Wires)

Harman part number 3-20-00844
OEM Harman part.

This product has a 30 day warranty. The warranty is void if the part is installed in a unit the part was not designed for.


  • 5
    All Good

    Posted by Richard Bessette on Mar 8th 2017

    Sent the correct part at a reasonable price and delivery was prompt.

  • 5

    Posted by william andersen on Nov 6th 2016

    I shopped around before placing a order this was the most reasonable. I absolutely 100% would order from this company again. The website was very easy to navigate thru to order my parts.

  • 5
    Great quality

    Posted by Anthony C on Jun 13th 2016

    As always, perfect

  • 5
    esp & control board

    Posted by chuck baker on Dec 20th 2015

    excellent service and timely shipping along with great pricing. staff was courteous and knowledgeable.

  • 5
    Super 1

    Posted by brchartier@metrocast.net on Dec 20th 2015

    Spot on service as always.

  • 5
    Customer Service

    Posted by Craig in Western Wyoming on Dec 12th 2015

    MVHP did an excellent job of immediately shipping out the parts I ordered. UPS got them here when promised.

    I would recomment using this company for your parts needs.

  • 5
    Excellent service

    Posted by J MIchael Harvey on Oct 26th 2015

    Your service is definitely appreciated. We will be keeping your business card around for future orders. Thank You is not enough.

  • 5
    Part Shpping

    Posted by Gregg Jones on Oct 29th 2011

    The exact part arrived quickly and exactly as ordered. Just what I needed to get my pellet stove back operating.