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 | Jun 21, 2018
New app said to automate code compliance
Startup offers plug-in that scans 3D models.
Codes and Standards | Jun 20, 2018
Home values and local tax revenues at risk from high tide flooding, scientists group says
Analysis of property data identifies communities prone to frequent flooding.
Codes and Standards | Jun 19, 2018
Structural engineered wood products exempt from new EPA formaldehyde ruling
Exempt products include structural plywood, oriented strand board (OSB).
Codes and Standards | Jun 18, 2018
Seattle City Council repeals controversial new per-worker tax on large employers
Measure was aimed at raising $50 million for homeless services, affordable housing.
Codes and Standards | Jun 14, 2018
Hardscape from development makes ‘1,000-year’ flood in Maryland worse
Impermeable concrete made it easier for water to overwhelm drainage system.
Codes and Standards | Jun 13, 2018
United States Resiliency Council announces support for Calif. earthquake resiliency bill
Measure would help cities identify structures that could fail in major quake.
Codes and Standards | Jun 12, 2018
Congestion pricing for cars is effective in reducing traffic, but a difficult sell
After three years, traffic congestion declined by 30% in London.
Codes and Standards | Jun 11, 2018
First RFP requiring modular construction on New York City housing project issued
Part of Housing 2.0 modular construction initiative.
Codes and Standards | Jun 6, 2018
Buffalo, N.Y., contractor exec pleads guilty to fraud for bid rigging on $750 million contract
LPCiminelli stops functioning as GC in fallout from the case.
Codes and Standards | Jun 6, 2018
LEED should be updated to combat climate change
Hasn’t kept pace with urgency of problem, says clean energy investor.