These standards, which were last updated in 1988, reflect the significantly improved technologies available to make a range of models cleaner-burning and more efficient.
Americans continue to save money and improve their environmental footprint by using natural gas, according to the 2015 American Gas Association Playbook.
A consolidation between ASHRAE and the Indoor Air Quality Association (IAQA) has been finalized by both organizations. The consolidation was approved by the boards of directors for ASHRAE and IAQA at ASHRAE’s 2015 Winter Conference in Chicago.