One factor of comfort most people don't consider is sound. This section provides tips on how to make sure you are getting the quietest system available. The WeatherMaker 38TZA uses Carrier's Silencer System for extra-quiet performance. It takes about 6 of our air conditioners to make the same amount of noise as just one typical unit from another manufacturer. Comparison of 38TZA and a standard model with a sound rating of 80dBa.
Sound levels vary by size.
Air Conditioners and heat pumps An air conditioner or heat pump sitting next to your house can create a lot of noise both inside and outside your home. To compare sound levels of different brands, ask your dealer about the bel rating of units you are considering. Bels, similar to decibels, range from 0 to 13. That means one 9-bel air conditioner is as loud as 10 units rated at 8 bels. So we think taking the time to compare bel ratings is pretty sound advice.