The Ultimate 9700 Series Gas Furnace is the most stylish in the industry. Meeting all of your heating needs, the powerful two-stage system provides consistent and comfortable temperatures. For greater comfort and efficiency, the low-fire stage will provide for your heating requirements for most of its operation, reducing electricity consumption significantly. On colder days, this furnace supplies an extra boost of heat with the high-fire, second stage, creating fewer fluctuations in comfort levels. The WHISPER QUIET™ operation of the motor employs a ‘soft start’ and ‘soft stop’ which gradually increases and decreases speed, quietly introducing air and reducing noise. The cabinet is fully insulated to further reduce sound transfer. With automatic internal LED lights and a modular design, maintenance and service are incredibly easy. With the reliable heat and comfort that the 9700 provides, you will forget that it’s cold outside.