A new line of 90-percent and 80-percent annual fuel utilization efficiency (AFUE) furnaces includes two-stage, variable-speed furnaces up to 96-percent AFUE. The Million-Aireâ„¢ stainless steel tubular heat exchanger comes with a lifetime limited unit replacement warranty. These furnaces feature the new SureSmartâ„¢ ignition system, which uses silicon nitride igniters and an adaptive learning algorithm for maximum igniter life, the company states. Other features of the furnaces include a new two-tone color scheme (leather-grain Architectural Gray cabinet and Executive Gray door) and a dealer-friendly "false bottom" for easy installation, says the manufacturer.

Goodman Co. LP, Amana, 2550 N. Loop West, Ste. 400, Houston, TX 77092; 800-647-2982; www.amana-ptac.com or www.goodmanmfg.com.

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