IO Hvac Controls iO-DFK Dual Fuel Kit
IO Hvac Controls iO-DFK Dual Fuel Kit. DUAL FUEL KIT WITH OUTDOOR THERMOSTAT.
The iO-DFK is the most versatile and easy-to-install dual fuel kit on the market. The iO-DFK can be used with heat pumps and fossil fuel furnaces having up to 2 stages of cooling and 4 stages of heating. Outdoor balance point thermostat included.
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