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 | Nov 18, 2016
Mahesh Ramanujam takes reins as U.S. Green Building Council President and CEO
Ramanujam brings his tech and business consulting background to the post.
Codes and Standards | Nov 18, 2016
Canada GBC launching Zero Carbon Buildings Initiative
First step toward Zero Carbon Building Standard.
Codes and Standards | Nov 17, 2016
Santa Monica, Calif., passes historic net-zero ordinance
Includes more stringent commercial, multifamily building standards.
Codes and Standards | Nov 14, 2016
Six more states approve legal marijuana, creating opportunities for developers
Federal prohibition complicates the picture.
Codes and Standards | Nov 14, 2016
Los Angeles voters approve billions to tackle traffic and homelessness
The approved measures will create new rail lines and permanent housing.
Codes and Standards | Nov 9, 2016
NRMCA updates environmental impacts of concrete
The EPD now includes 88 companies, 72 mixes.
Codes and Standards | Nov 9, 2016
Louisiana flood projections require urgent action, officials say
The 'no net loss’ prediction now seems unrealistic.
Codes and Standards | Nov 8, 2016
American Concrete Institute offers new guide for repair of concrete buildings
The guide provides assistance on assessment and rehab.
Codes and Standards | Nov 7, 2016
The AISC prequalified seismic moment connection standard is now available
You can download the 2016 version for free.
Codes and Standards | Nov 4, 2016
Obama Administration makes a push for denser, more affordable cities
The administration calls for zoning code changes and other measures to create more housing.