by Mark Hansberger on August 6, 2020July 28, 2020 Which HVAC Ratings Tell You the Most About Your Unit? To predict how a new furnace or air conditioner will perform when it comes to energy efficiency, HVAC ratings provide useful information to help you compare different makes and models. For HVAC components that are already installed, […]Read More Filed Under: Energy Efficiency Tagged With: afue ratings– efficiency ratings– performance– r22– seer rating