Merit® Series Gas Furnaces Provide Reliable Heat When You Need it Most You’ll find a wide variety of affordable and energy efficient gas furnaces at AW Heating & Air Conditioning in Lincoln. Our Merit Series products have earned high annual fuel utilization efficiency (AFUE) ratings, which measure how efficiently the equipment converts fuel to energy. Each model is also built for reliability and a long product life, giving you the comfort you need throughout the coldest months of the year. Find specifics about each product below, and call us at 402-438-7992 or set up an appointment online to talk to one of our team members a gas furnace replacement for your home. AW Heating & Air Conditioning can assist with all your gas furnace replacement needs. If you’re looking for gas furnace repairs or maintenance in Lincoln, our staff has you covered. Give us a call at 402-438-7992 or use our online scheduler to set up an appointment. * Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.