Description
iO HVAC Controls DFK Dual Fuel Kit
The iO HVAC Controls DFK Dual Fuel Kit is engineered to provide reliable, automatic switchover control between a heat pump and a gas furnace in dual fuel HVAC systems. By intelligently coordinating both heating sources, this kit helps maximize energy efficiency and year-round comfort — allowing the heat pump to handle mild-weather heating while seamlessly transitioning to gas furnace operation during extreme cold.
Key Features
- Designed for dual fuel (heat pump + gas furnace) system integration
- Enables automatic or controlled switchover between heating sources
- Helps optimize energy efficiency by selecting the most cost-effective fuel source
- Compatible with iO HVAC Controls zoning and thermostat systems
- Simplifies installation with a purpose-built kit format
- Supports reliable, year-round heating performance in variable climates
Application
The DFK Dual Fuel Kit is ideal for residential and light commercial applications where both a heat pump and a gas furnace are installed. It is particularly well-suited for climates that experience wide temperature swings, allowing installers to configure a balance point at which the system transitions from electric heat pump operation to gas heat, delivering comfort without sacrificing efficiency.
Why Choose iO HVAC Controls
iO HVAC Controls is a trusted name in zoning and system controls, known for producing reliable, installer-friendly products that integrate seamlessly into modern HVAC systems. The DFK kit reflects that commitment to quality and ease of use.





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