Johnson Controls: Modulating Gas Furnaces
January 12, 2009
The Coleman modulating gas furnaces that achieve 98 percent Annual Fuel Utilization Efficiency (AFUE), such as the Echelon™ 33-inch, variable-speed modulating gas furnaces with electronically commutated motors (ECM), can save homeowners from $70 to $300 during the heating season, compared to a 96.7 percent AFUE unit, said the company. All the modulating gas furnaces with permanent split capacitor (PSC) motors have 97 percent AFUE ratings. And all single-stage furnaces are now rated at 95.5 percent AFUE. All 95 percent and higher AFUE furnaces are Energy Star®-qualified. The furnaces feature integrated controls. The controls provide comfort to within 1°F of the thermostat set point and ensure precise modulation of the gas valve from 50-100 percent in 1 percent increments on the fully modulating 80 percent AFUE offering. The 97 percent and higher AFUE models modulate from 35-100 percent in 1 percent increments.
Johnson Controls, Attn: Jeff Hurt, Coleman Brand Manager, 5005 York Dr., Norman, OK 73069; www.switchtocolemanac.com