A group of commercial manufacturers supported by International Association of Plumbing and Mechanical Officials (IAPMO) and members of the Hydronics Industry Alliance, a Committee of the Radiant Professionals Alliance, have released BEST: The Building Efficiency System Tool.
Available free of charge, BEST allows users to accurately compare different styles of HVAC systems. HVAC systems are all tested to different standards, with various efficiency ratings (EER, IEER, SEER, COP, HSPF), as they are applied in an actual building.
BEST uses the Building Energy Efficiency Ratio (BEER), which takes certified AHRI data, manufacturers’ published performance data at multiple performance points, as-applied correction factors, performance curves for components, pipe and duct required in a typical system. It combines these elements to bridge the gap between certified equipment efficiencies and real-world building system efficiencies.
Users enter the square footage of the building, the number of stories, and the nearest city for local weather data, and then choose up to four types of HVAC systems to compare from more than 30 pre-loaded systems.
BEST features more than 100 default input settings, including system cost per square foot (provided by more than 50 contractors around the U.S.), each of which are adjustable to model any building in any location. BEST outputs estimated installation cost, replacement cost, maintenance cost, monthly energy cost, electrical and fossil fuel consumption costs, total life cycle cost, cumulative life cycle cost by year, system payback time (as compared with other modeled systems), pump and fan HP, system integrated energy efficiency ratio (IEER), coefficient of performance (COP), and more.
Related Stories
Codes and Standards | May 15, 2019
OSHA inspections to increase, says Secretary of Labor
Newly hired inspectors getting up to speed.
Codes and Standards | May 14, 2019
Database records more than 1,360 K-12 school shooting incidents since 1970
Naval Postgraduate School program maps locations nationwide.
Codes and Standards | May 13, 2019
In many cities, downtown housing comes with a hefty premium
Urban core living costs hundreds of thousands more in largest U.S. cities.
Codes and Standards | May 7, 2019
San Francisco plan would require largest commercial buildings to use 100% renewable electricity
First in the U.S. mandate would be phased in from 2022 to 2030.
Codes and Standards | May 7, 2019
ABC says best practices can improve construction companies’ safety by 680%
Daily ‘toolbox safety talks’ were most effective safety measures.
Codes and Standards | May 7, 2019
Office noise significantly reducing employee concentration, productivity, and creativity
Workplace distractions cause some to choose to work remotely.
Codes and Standards | May 7, 2019
WSP USA says it will be carbon neutral in 2019
Engineering firm will offset carbon at all offices and with employee business travel.
Codes and Standards | Apr 25, 2019
Report: Contractors invest $1.6 billion in workforce development annually
ABC members increased training spending 45% from 2013, according to a new report.
Codes and Standards | Apr 25, 2019
New York City’s Green New Deal would ban all-glass skyscrapers
The ambitious plan would also boost affordable housing, reduce building emissions, and update codes to account for sea level rise.
Codes and Standards | Apr 25, 2019
Chicago, Houston, and Dallas deemed ‘most dangerous cities for migratory birds’
The three cities are in the heart of North America’s most trafficked aerial corridors.
