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Gas Furnaces

Today's new high efficiency furnaces can save up to 50% in operating costs over a ten-year-old furnace. Many 1990 and earlier model furnaces have Annual Fuel Utilization Efficiency (AFUE) ratings of 65% or less. The minimum AFUE rated furnace that can be sold in the United States today is 80%.

Our current product offering starts at 80% AFUE and goes all the way to a very efficient 96.6% AFUE rating. Depending on your average usage, higher AFUE rated furnaces can significantly reduce your gas bill.

We offer many furnaces with variable and multi-speed features that can provide enhanced indoor comfort by slowly ramping up to your thermostat setting rather than simply turning on at full speed. This alleviates the "cold air blow" often associated with single speed furnaces, and dramatically reduces system noise.

Features	Infinity™ Series View All Models Features Infinity™ Series Model 59MN7 View Brochure 59TN6 View Brochure 58CVA View Brochure Energy Rating Up to 97.4% AFUE Up to 96.7% AFUE 80% AFUE Energy Efficient Greenspeed™ Intelligence No No Energy Star Rated No Sound Level Quietest Quietest Quietest Fan Heating Operation Variable Speed/ Modulating Heating Variable Speed/ 2-Stage Heating Variable Speed/ 2-Stage Heating FactoryWarranty Parts 10 years 10 years 10 years Factory Warranty Heat Exchanger Lifetime Lifetime 20 yr. Limited	Performance™ Series View All Models Features Performance™ Series Model 59TP5 View Brochure 59SP5 View Brochure 58PHA View Brochure Energy Rating Up to 96.7% AFUE Up to 96.5% AFUE 80% AFUE Energy Efficient Greenspeed™ Intelligence No No No Energy Star Rated No Sound Level Quieter Quieter Quieter Fan Heating Operation Multi-Speed/ 2-Stage Heating Multi-Speed/ 1-Stage Heating Single Speed/ 1-Stage Heating FactoryWarranty Parts 10 years 10 years 10 years Factory Warranty Heat Exchanger Lifetime Lifetime 20 yr. Limited	Comfort™ Series View All Models Features Comfort™ Series Model 59SC5 View Brochure 59SC2 View Brochure 58STA View Brochure Energy Rating Up to 95.5% AFUE Up to 92.1% AFUE 80% AFUE Energy Efficient Greenspeed™ Intelligence No No No Energy Star Rated No Sound Level Quieter Quieter Quiet Fan Heating Operation Multi-Speed/ 1-Stage Heating Multi-Speed/ 1-Stage Heating Single Speed/ 1-Stage Heating FactoryWarranty Parts 10 years 10 years 10 years Factory Warranty Heat Exchanger Primary - Lifetime / Secondary - 20 yr. Limited Primary - Lifetime / Secondary - 20 yr. Limited 20 yr. Limited
Energy Rating	Up to 97.4% AFUE	Up to 96.7% AFUE	Up to 95.5% AFUE
Energy Efficient Greenspeed™ Intelligence		No	No
Energy Star Rated	Some Models	Some Models	Some Models
Sound Level	Quietest	Quieter	Quieter
Fan Heating Operation	Varies By Model	Varies By Model	Varies By Model
FactoryWarranty Parts	10 years	10 years	10 years
Factory Warranty Heat Exchanger	Varies By Model	Varies By Model	Varies By Model
Cost	$$$$	$$$	$$