Profile: Appliance Parts Distributors International is a provider of commercial laundry, air conditioning, and refrigeration appliances. We stock old controls, capacitors, thermostats, and other functional spare parts for most manufacturers. Gas controls/ combination gas controls feature gas cock knob, wiring connections, pressure regulator, pilot gas adjustments, and thermocouple connection on top of the control for easy access. The round thermostat provides temperature control for 34 to 30 volt residential heating, cooling, and heating-cooling systems.