Digital Controller Retrofit Kit P-0059

$ 1,485.00


Digital Controller Retro Kit fits GARN models 1500, 1900, 2000, 2200, 2500, 3200

Each kit includes:

Digital Controller (P-0068);

Low water cut off/temp sensor stem (17 in) with mounting fitting for 1500, 1900, 2000, 2200, 2500, 3200 (P-0054);

Flue Temp Sensor, thermocouple with bushing (P-0055);

Return Pipe ,HWR temp sensors (P-0058)

Supply Pipe, HWS temp sensors;  (P-0057)

Optional :  Outdoor temp sensor in included,    sold separately  (P-0056).


The digital controller utilizes a pre-programmed chip that is upgradeable as control improvements are developed. In addition, the digital controller and its related sensors can be retrofitted to almost all existing GARN WHS units with minor alterations dating back to 1990. This controller is a significant improvement over the analog timer controller that it replaces (units produce before 2010). The new digital controller was developed to perform the following functions:

  • Eliminate requiring the GARN WHS user to set the induced draft blower timer based on an estimate of fuel load size, wood species or estimated moisture content.
  • Increase efficiency by eliminating blower operation beyond the termination of combustion.
  • Provide a digital readout of flue gas and thermal storage temperatures.
  • Provide a digital readout of the following additional temperatures:  hot water supply and hot water return.
  • Terminate blower operation upon unexpected thermal storage water loss.
  • Display the duration of the burn (hrs & minutes) following termination of combustion.
  • Simple installation, NO Drilling, Tapping or Gluing

Additional information

Weight 18 lbs
Dimensions 13 × 11 × 7 in