What is a common energy-efficient feature found in modern HVAC units?

The inclusion of variable-speed compressors in modern HVAC units is a significant advancement in energy efficiency. These compressors can adjust their speed to match the heating or cooling demands of a space more precisely. Unlike single-speed compressors, which operate at a constant speed, variable-speed compressors can ramp up or down, allowing them to use only the energy required for the current conditions. This capability results in reduced energy consumption, improved comfort levels, and decreased wear and tear on the unit, ultimately leading to longer equipment life and lower utility bills. The ability to operate at multiple speeds also helps maintain more consistent indoor temperatures and humidity levels, enhancing overall comfort. This feature is a key characteristic of modern, energy-efficient HVAC systems.