Harman 3-20-6866 Pellet Stove Differential Pressure Sensor Vacuum Switch


EQUIVALENT TO: HARMAN/3-20-6866, 3-20-9301, 3-20-3433

SKU: G334 Category:


The Harman 3-20-6866 is a differential pressure sensor vacuum switch made to fit certain Harman model pellet stoves.

  • Calibrated to close the ignition and feed circuit at .10 WC PF.
  • Normal Position: Open.
  • Fits a variety of Harman model pellet stoves, see additional info section below for all compatible models.
  • Weight: 1 lb.
  • Also known as NBK Parts 20168.