The performance and durability of a gas furnace rests almost exclusively on the design and construction of the heat exchanger. Simply stated, a gas furnace is only as dependable as its heat exchanger. That’s why the Goodman brand gas furnaces have perhaps the best exchanger in the industry.
The industry standard (NASI Z21.47) requires that furnace manufacturers to test their heat exchanges for 10,000 cycles. That is the baseline of performance, and the standard for many furnace manufacturers. The industry test requires that the furnace burner must ignite, heat the exchanger to 1,100 degrees Fahrenheit, and allow it to cool to 200 degrees Fahrenheit, and then repeat the process.
The TuffTube™ heat exchanger employs three key technologies that all work together with the physical properties of aluminized-steel tubing. The final result is a tight, strong, durable heat exchanger that we consider unequaled in the heating and cooling industry.
When you compare the performance qualities of the TuffTube™ heat exchanger to any of the competitive brands, you’ll discover why more and more homeowners are installing Goodman brand gas furnaces…they saying, “Thanks goodness for Goodman”.