Dual Fuel Systems Make Heating Even More Efficient. You want to keep your home comfortable without paying a fortune on utility bills, which is why you have high efficiency HVAC products. What you may not have known is that some of these products are not only energy efficient working by themselves, but they can be combined to deliver even greater efficiency to your family. At WM J Kraus & Son in Keokuk, we have furnaces that work with heat pumps to create a dual fuel system. Combining a gas furnace with an electric heat pump allows you the ability to use two different fuel types: gas and electricity. Whenever the weather becomes too cold for your heat pump to run efficiently (usually around 32 degrees Fahrenheit), the furnace starts up to provide the rest of the power you need to stay comfy. That means you’re only using gas fuel when it’s necessary. Dual fuel systems alternate between the two types of heat, which optimizes energy uses and minimizes heating costs. That’s a solution you can feel good about. Browse our gas furnace and heat pump offerings to find information about each product. Give WM J Kraus & Son a ring at 319-524-3714 or make an appointment to discuss adding dual fuel capabilities. We’re in Keokuk – just down the road and ready to help.