In 2013, the U.S. Department of Energy’s plan for increasing HVAC efficiency was to go into effect. After working with leaders in both the HVAC and utilities industries, the DOE’s plan to increase HVAC efficiency standards from a minimum of 78 AFUE (annual fuel utilization efficiency) to a new minimum of 90 AFUE seemed destined to make a significant impact in reducing energy consumption. Unfortunately, these standards came at a high price. It became evident that many homeowners would struggle financially trying to comply with the proposed higher HVAC efficiency standards. The major problem presented with these higher AFUE ratings is that only a condensing furnace would be able to meet the new minimum requirement. While there is little doubt that a condensing furnace can offer increased energy efficiency and meet the 90 AFUE proposed by the DOE, implementing this plan would require homeowners to undertake costly and extremely difficult retrofitting measures before this new […]