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Dual-fuel: one system with many advantages

If you're looking for a cost-effective, energy-efficient and environmentally friendly way to keep your home warm and cozy, then a dual-fuel HVAC system might be the right solution for you.

How the system works

A dual-fuel HVAC system offers the perfect combination of efficiency and comfort with two energy sources- an electric heat pump and a gas furnace in one fuel-efficient heating unit. Ideal for moderate to colder climates, the system works by using the heat pump to heat your home when the weather is just a little cold. But when it gets very cold, usually around 35°F/2°C, the heat pump shuts down and the furnace takes over.

The benefits of a dual-fuel system

Here are some of the benefits you could enjoy if you choose a dual-fuel system.


A dual-fuel system optimizes energy use by automatically switching to whichever fuel source delivers the most efficient heating for the current outdoor conditions. During moderate winter temperatures, the electric heat pump provides the most efficient and cost-effective method of heating.

Lennox® offers self-contained dual-fuel packaged systems, and also offers dual-fuel compatible furnaces and heat pumps, which can be paired to create a system. The XP25 from Lennox is the most precise and efficient heat pump you can buy*, helping to reduce your utility bills—without sacrificing your comfort.


A dual-fuel heating system delivers peacefully, quiet comfort all year long. In fact, because of its SilentComfort technology, the XP25 dual-fuel heat pump operates so quietly, you'll hardly know it's running. 


Though the initial cost of a dual-fuel system may be high, the efficiency of the system makes it a worthwhile long-term investment. The system is set up so that the electric heat pump is used most of the time. This helps to keep fuel costs down, since gas can be more expensive to use than electricity. A dual-fuel system also spares you from having to install two separate systems, which may help to reduce maintenances costs. A smart choice for your comfort, energy and budgetary needs, a dual-fuel system can also add to the value of your home.


A dual-fuel system uses electricity 85% of the time, which is a clean and environmentally friendly fuel source. A dual system, therefore, helps in sustainable energy utilization and is an environmentally responsible way to heat your home.

Discover the many benefits of dual-fuel

If you'd like to learn more about the comfort and energy-saving advantages of a dual-fuel system, why not ask your Local Lennox Dealer about which option would work best in your home. Your Lennox dealer can also tell you about any money-saving promotions or rebates that are currently on offer.

* A combination of sound ratings established per AHRI's test standard: AHRI 270-2008 (August 2013); and efficiency ratings established per AHRI's test standard: ANSI/AHRI 210/240-2008 of two-stage central AC/HP equipment.

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