Modern HVAC systems provide a variety of useful features, but homeowners looking for the ultimate in indoor comfort often choose a central air conditioner with a two-stage compressor and variable speed motor. How Adjusting AC System Speed Improves Comfort Single-stage air conditioners run at 100 percent capacity until the temperature setting is reached. Near constant [...]The post How a 2 Stage Compressor and Variable Speed Motor Improves Your Indoor Comfort appeared first on Grizzle Heating & Air.