Power Module for Heatwave Systems


  • 4.8” wide x 3” tall x 1” deep
  • Supply 120-240 VAC 50/60Hz
  • Temperature control range: 41ºF to 104ºF
  • Class A GFCI (5 mA trip level)
  • On/Off differential 0.7ºF
  • Nema 2 (IP21) Housing
  • 15 Amp maximum resistive load

18 in stock

SKU: M429-PM Categories: ,


In large Heatwave applications, thermostats can be extended with additional power modules with built in Class A GFCI. Output can be increased by 15A per module.


Here’s how to upgrade your Heatwave programmable thermostat (M429) to a Power Module:

  1. Pay the fee: $149.00
    (Add this item to you cart and complete your purchase)
  2. We’ll ship the Power Module to you.
  3. Remove your floor sensor from your current thermostat.
  1. Return* the thermostat (minus the floor sensor) with all packaging. Return address is:

    Heatizon Systems
    4137 South 500 West
    Murray, UT 84123


    *Return shipping cost to the customer is estimated to be approximately $7.00 via USPS first class mail.


  2. Once we receive your old thermostat, we will credit you back $125.00 from your earlier purchase*.
  3. Install your Power Module and connect it to the master Thermostat.

Additional information

Weight 1 lbs
Dimensions 6 × 4 × 4 in