iO HVAC Controls iO-DFK Dual Fuel Kit with Outdoor Thermostat DMAPLCC1070 the FA-03 CO2 trans-fill adapter

the FA-03 CO2 trans-fill adapter

Sharkbite U4008LF 1/2" PB x 1/2" CTS Polybutylene Transition Coupling

0°C or ±1

Klein Tools NCVT-4IR is a voltage tester that provides non-contact determination of AC voltage in cables

The easy to use free App lets you record photo or video directly to your smart device which you can use to send to customers or help with reporting when doing inspections

iO HVAC Controls iO-DFK Dual Fuel Kit with Outdoor Thermostat DMAPLCC1070 the FA-03 CO2 trans-fill adapteriO HVAC Controls iO DFK Dual Fuel Kit with Outdoor Thermostat This easy to install Dual Fuel Kit can be used with heat pumps and fossil fuel furnaces having up to 4 stages of heating and 2 stages of cooling. They work by turning the heat pump off at a pre determined outdoor temperature permitting the fossil fuel furnace to run in order to reach the room thermostat setpoint. Includes snap track mounting and outdoor balance point thermostat. Snap track