Smaller is Smarter


Long ago the HVAC industry determined that the combination of copper tubing and aluminum fins provided the most efficient transfer of thermal heat available. Today, the Goodman brand has improved upon this industry standard by making the copper tubing smaller and smarter. The result is an air conditioner or heat pump unit that can offer high efficiency, use less refrigerant, and deliver money-saving and energy-saving comfort to homeowners for years and years. Goodman’s SmartCoil™ is our most advanced and most efficient that is manufactured in North America. And, several patent applications are pending on this coil as a result of the technology required to engineer and manufacture it.

Beyond the excellent thermal transfer properties of R-410A refrigerant when it’s coupled with 5mm copper tubing, the smaller diameter tubing requires less refrigerant to achieve the same efficiency rating. Although the 5mm copper tubing has a smaller diameter, the tubing’s wall strength is as strong as the old 3/8 inch tubing.

SmartCoil Generates Greater Performance
Thermal transfer is a major component in the operation and performance of an air conditioning or heat pump product. One simple job of the refrigerant in an air conditioning or heat pump system is to transfer heat—and humidity—from the air. Because the majority of thermal transfer occurs in the condenser and evaporator coils, the Goodman engineers readily accepted the challenge of optimizing thermal transfer in the condenser coils for products that use R-410A refrigerant. After all, the heritage of the Goodman brand involves energy-saving, money-saving, and resource-saving heating and cooling systems. So the introduction of R-410A refrigerant offered the perfect opportunity to optimize the heat transfer efficiency properties of R-410A refrigerant. In their quest, Goodman’s engineers quickly resolved that the thermo-physical properties of R-410A refrigerant are a great match for the heat transfer characteristics of 5mm diameter copper tubing. Scientific theory aside, it’s easy to see why smaller tubing in the condenser coil optimizes heat transfer.
The smallest amount of heat transfer occurs in the center of the tubing. The larger the tubing size, the larger the area where minimal heat transfer increases.
Images enlarged to show detail.