No matter what Mother Nature has in store outdoors, Carrier helps you control your indoor weather with superior products like the 38YRA heat pump. Maintaining comfortable temperatures all year long is just one way the 38YRA improves your indoor weather. As a part of our Silencer System series, this heat pump incorporates features designed to ensure operation that is so quiet, you might not notice that your system is running. And, because it's designed and built by Carrier, the 38YRA offers dependability backed by nearly a century of indoor weather expertise. The Silencer System is Carrier's exclusive design that ensures extra-quiet, unobtrusive heat pump operation. With this unique system, it would take about sixteen 38YRA heat pumps, all running at the same time, to create the same amount of noise generated by one typical heat pump. This stunning performance is made possible through a combination of components and design features developed by Carrier engineers. Amazingly quiet operation is the result of Carrier's expertise in heat pump design. Sound from your heat pump is the result of compressor operation and air movement through the unit. Carrier has dramatically reduced compressor noise by wrapping the compressor with a sound hood. In addition, the compressor is attached to a laminated steel vibration isolator plate, which eliminates sound being transferred through the unit. Carrier's patented Silencer System top allows the air to pass smoothly through the unit. Carrier's research center designed the fan blades in its heat pumps to be extra efficient at moving air. Finally, the discharge muffler eliminates the humming sound sometimes heard in the home, the result of pulsations in the refrigerant tubing. It's a total package that provides soothing, quiet, efficient comfort that is felt and not heard. You can keep comfortable, even when the heating and cooling bills arrive, because the 38YRA offers money-saving energy efficiency. With exceptional efficiency ratings of up to 9.2 HSPF (Heating Seasonal Performance Factor) and up to 15.0 SEER (Seasonal Energy Efficiency Ratio), this heat pump easily saves money on operation when compared to a typical, older model that is being replaced. And, when the 38YRA is matched with a variable speed fan coil, it is one of the most efficient systems available. Carrier's reputation for reliability is one that has been developed and maintained for nearly one hundred years. Quite simply, our name has lasted because we build products that last. Components like our high and low pressure switches protect the unit's most valuable single component: the compressor. On the outside, Carrier's WeatherArmorTM III cabinet protects the unit against damage from rocks and sticks, as well as lawn maintenance equipment, to provide years of good looks and durability. This may seem like a small detail, but it's a perfect example of why homeowners nationwide put their trust in Carrier for innovative solutions to their indoor weather needs. Always look for these symbols, the heat pump industry seals of certified performance, efficiency and capacity.