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
Senior Living Design | Feb 15, 2023
Passive House affordable senior housing project opens in Boston
Work on Phase Three C of The Anne M. Lynch Homes at Old Colony, a 55-apartment midrise building in Boston that stands out for its use of Passive House design principles, was recently completed. Designed by The Architectural Team (TAT), the four-story structure was informed throughout by Passive House principles and standards.
Sustainability | Feb 9, 2023
New guide for planning, designing, and operating onsite water reuse systems
The Pacific Institute, a global nonpartisan water think tank, has released guidance for developers to plan, design, and operate onsite water reuse systems. The Guide for Developing Onsite Water Systems to Support Regional Water Resilience advances circular, localized approaches to managing water that reduce a site’s water footprint, improve its resilience to water shortage or other disruptions, and provide benefits for local communities and regional water systems.
Sustainability | Feb 9, 2023
University of Southern California's sustainability guidelines emphasize embodied carbon
A Buro Happold-led team recently completed work on the USC Sustainable Design & Construction Guidelines for the University of Southern California. The document sets out sustainable strategies for the design and construction of new buildings, renovations, and asset renewal projects.
Codes and Standards | Feb 8, 2023
GSA releases draft of federal low embodied carbon material standards
The General Services Administration recently released a document that outlines standards for low embodied carbon materials and products to be used on federal construction projects.
Multifamily Housing | Feb 3, 2023
HUD unveils report to help multifamily housing developers overcome barriers to offsite construction
The U.S. Department of Housing and Urban Development, in partnership with the National Institute of Building Sciences and MOD X, has released the Offsite Construction for Housing: Research Roadmap, a strategic report that presents the key knowledge gaps and research needs to overcome the barriers and challenges to offsite construction.
Codes and Standards | Feb 1, 2023
New Jersey to allow private firms to conduct construction inspections
New Jersey recently passed a law that will allow towns to supplement construction code enforcement with help from the private sector. The legislation, which received bipartisan support, also allows municipalities to enter into shared service agreements with neighboring towns for construction inspections.
Standards | Jan 31, 2023
Standard establishes best practices for rainwater and stormwater harvesting system
The market is seeing an increasing number of residential, commercial, and industrial rainwater and stormwater systems being installed.
Green | Jan 26, 2023
Corporations fall short on climate pledges by failing to embed net-zero actions into operations
Many corporations are failing to implement simple, practical steps needed for them to hit their stated decarbonization goals, according to a survey of more than 300 operations managers across key industrial sectors including construction, energy, and chemicals in the U.S., U.K., and Germany.
K-12 Schools | Jan 25, 2023
As gun incidents grow, schools have beefed up security significantly in recent years
Recently released federal data shows that U.S. schools have significantly raised security measures in recent years. About two-thirds of public schools now control access to school grounds—not just the building—up from about half in the 2017-18 school year.
Concrete | Jan 24, 2023
Researchers investigate ancient Roman concrete to make durable, lower carbon mortar
Researchers have turned to an ancient Roman concrete recipe to develop more durable concrete that lasts for centuries and can potentially reduce the carbon impact of the built environment.
