90% Gas Furnace Downflow

90% + AFUE efficiency with weldless tubular heat exchanger

Self diagnosing control system

Patented high temperature limit system

Easy service access with no door switches

Power terminals provided for humidifier and electronic air cleaner

20 - Year limited heat exchanger warranty

5 - Year limited parts warranty

Additional Information

Efficiency Rating Chart:

Model	Blower Motor HP	Input BTU/hr	Output BTU/hr	Blower Size	Annual Fuel Utilization Efficiency (AFUE)	Max Cooling Tons	Approx. Ship Weight (pounds)
WTCSA054NH3R	1/3	54,000	48,900	10-6	90.4	3	122
WTCSA072NH3R	1/2	72,000	65,200	10-8	90.4	3.5	131
WTCSA072NH4R	3/4	72,000	65,200	Dual 10-4	90.4	4	141
WTCSA090NH3R	1/2	90,000	81,400	10-8	90.4	3.5	145
WTCSA090NH4R	3/4	90,000	81,400	Dual 10-4	90.4	4	150
WTCSA108NH5R	3/4	108,000	97,700	Dual 10-6	90.4	5	174
WTCSA126NH5R	3/4	126,000	114,000	Dual 10-6	90.4	5	193