Dual Fuel Systems
Dual Fuel Systems: Precision Temperature Control for Every Season
Looking for a smarter, more efficient way to heat and cool your home? Choosing a dual fuel system is the ultimate upgrade—combining the power of an electric heat pump with the reliability of your existing gas furnace. This dual-fuel system automatically chooses the most cost-effective and energy-efficient heating method based on the weather and your home’s needs with up to a $2,000 Federal Tax Credit (learn more here), National Grid rebates up to $600 (learn more here), and a 21 Seer (Seasonal Energy Efficiency Ratio) rating.
Welcome to Hybrid HVAC
Eco-efficient Comfort
Mitsubishi Electric’s intelli-HEAT™ Dual Fuel System consists of 2 units: an exterior heat pump, which replaces your existing air conditioning condenser, and an interior unit that is installed on your existing furnace*. This smart system not only improves air conditioning efficiency on hot days, but also determines the best source of heat (gas or electricity) on cold days, so your HVAC system is always running at peak efficiency and comfort.
*Mitsubishi Electric air conditioner and heat pump systems should only be connected with ANSI-Z21.47/CSA2.3 certified furnaces.


Make it Multi-zone
One multi-zone outdoor unit connects to up to six indoor units and provides personalized comfort in multiple spaces. This functionality eliminates problem hot and cold spots in the home or office and allows for energy to be used only in the zones that need it.
Why Homeowners Love Dual Fuel Systems:

Energy Savings Year-Round
Electric heat when it’s mild, gas heat when it’s freezing—this system picks the most efficient option to save you money.

Whisper-Quiet Performance
Enjoy even, quiet comfort without the ups and downs of traditional systems.

Eco-friendly Intelli-Heat
Reduce your carbon footprint without sacrificing warmth in the winter or cool air in the summer.

Fast, Seamless Installation
The cased coil comes pre-packaged and fits easily with your furnace setup, speeding up installation and reducing disruption.
Why Choose Mitsubishi's Dual Fuel System with Intelli-HEAT?
Whether you’re replacing an old system or building something brand new, Intelli-HEAT with cased coil gives you control, flexibility, and comfort—all in one smart package with these key benefits:
• Compatible with any thermostatically controlled (24VAC) natural gas or LP furnace* • Intelligent Comfort Control Function (automatic switchover between heat pump and furnace*) • Includes cased coil and control box
• Available in 14.5”, 17.5”, and 21” widths
• Optimized heat exchanger design for increased efficiency and longevity
• High quality drain pan material with high heat tolerance and low moisture absorption
• Multi-position installation: horizontal (left or right), vertical (up or down)
○ Drain pans for all multi-position configurations are included for easy installation
• Optional humidifier control and ERV control
• Oxygen free copper coils
• Multiple control options available:
○ Wired or wireless controllers
*Mitsubishi Electric air conditioner and heat pump systems should only be connected with ANSI-Z21.47/CSA2.3 certified furnaces.
The Dual Fuel System with Intelli-HEAT works seamlessly with your existing gas furnace*. Replace your outdoor condensing unit with a Mitsubishi Electric heat pump and enjoy year-round comfortable and efficient heating and cooling. Intelli-HEAT mounts in-line with your existing furnace and ductwork. During periods of extreme cold, the dual fuel system switches to the gas furnace based on capacity and economic balance points, creating a true dual fuel system. Add the benefits of true zoned comfort and fix hot and cold spots by adding additional indoor units.
Year-Round Comfort That Works with Your Budget!
Monthly Payments and Up to $2,000 Federal Tax Credit!
DUAL FUEL PACKAGE DEAL


MHK2 Thermostat
Dual set point technology enables automatic switching between heating and cooling modes
Programmable 5-2 or 5-1-1 schedule for optimized temperature management
Large backlit display ensures easy monitoring and adjustments

Furnace Stage 2
Increased dehumidification with Comfort-R™
Re-designed cabinet platform to fit in tighter spaces
Variable-speed blower motor
Variable Speed Draft Inducer
Heavy gauge, two-tone powder-painted cabinet
Stainless steel primary and secondary heat exchanger
Insulated cabinet for quiet operation