The G61 gas furnace has two levels of heat output for enhanced comfort and efficiency. It's like having two furnaces in one: a small furnace (low heat) for mild days and a larger furnace (high heat) for extremely cold days. Two levels of heat, a high level of comfort Unlike typical single-stage models that operate only at full capacity, the G61 can adjust outputs to match household heating demand. More than 80% of the time, it runs at low stage, which means more even heat distribution and quieter operation. Efficient More comfort for your energy dollar With its two-stage design, the G61 not only keeps you warm – it reduces your energy costs. With an efficiency rating of up to 95.0% AFUE (Annual Fuel Utilization Efficiency), compared with older 55% AFUE units, the G61 can save you up to $1,000 per year. For even greater efficiency, the G61 can be paired with an electric heat pump. Called Dual-fuel, this combination minimizes heating costs by seamlessly alternating between the two energy sources, depending on outdoor conditions.

• Duralok Plus® Heat Exchanger – Made of high-quality, patented ArmorTuf™ aluminized steel.
• Stainless Steel Secondary Heat Exchanger – Improves efficiency by capturing additional heat.
• Two-Stage Heating – Provides two levels of heat output for greater temperature control and comfort.
• Continuous Low-Speed Fan – Slowly circulates air
for mproved comfort and air quality.
• SureLight® Control Board – Ensures reliable
and efficient operation. SureLight® Igniter – Nitride design
provides long product life and reliable operation.
• Insulated Blower Compartment
Minimizes operating sounds.
• Durable Steel Cabinet – Built to last and coated with high-quality, corrosion resistant polyester, textured-paint finish.