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 | Jul 31, 2015
AIA, International Code Council reach collaborative agreement on building codes
The deal covers a wide range of initiatives, including code development, compliance, and sustainability.
Codes and Standards | Jul 31, 2015
Report offers urban design recommendations for healthier cities, fewer traffic fatalities
Provides concepts for creating safer streets
Codes and Standards | Jul 31, 2015
2015 gypsum fire resistance design manual released
The 2015 edition contains nearly 100 new systems that supplement existing assemblies for walls and partitions, floor-ceiling systems, area separation walls, and many others.
Codes and Standards | Jul 27, 2015
New York City changing zoning rules to reduce shadows cast by high rises
For decades, the New York City’s zoning rules have made it hard to construct high-rise buildings that seem airy and minimize the shadows they cast. The city planning department is now working to change that.
Codes and Standards | Jul 27, 2015
ICC, ASHRAE outline roles to consolidate IgCC and 189.1
"IgCC Powered by 189.1” will provide the design and construction industry with “the single, most-effective way to deliver sustainable, resilient, high-performance buildings," according to the trade groups behind the agreement.
Codes and Standards | Jul 27, 2015
Tennessee county considers local worker requirement on construction projects
A proposed amendment to the charter governing Nashville and Davidson County would mandate that 40% of work hours on city- or county-funded construction jobs costing at least $100,000 be completed by residents.
Codes and Standards | Jul 27, 2015
New guide for installation of mineral fiber pipe insulation on chilled water systems
Developed for professional insulation contractors, the 36-page guide recommends methods for insulating chilled water piping systems using a vapor-sealed mineral fiber pipe insulation.
Green | Jul 23, 2015
NASA: U.S. headed for worst droughts in a millennium
Data from NASA shows carbon emissions could be the driving force behind devastating water shortages and record droughts in the western U.S.
Multifamily Housing | Jul 16, 2015
Minneapolis relaxes parking requirements on new multifamily buildings
The city cut the number of spots required for large developments by half. It also will accept plans with no parking spaces in certain cases.
Codes and Standards | Jul 16, 2015
Berkeley, Calif., adopts balcony inspection program following deadly collapse
Apartment building balconies will be subject to inspections every three years under new regulations adopted following a deadly collapse.
