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
| Sep 2, 2014
Proposed federal rules would create more stringent healthcare facility safety rules
A key change is a requirement that buildings over 75 feet tall have sprinkler systems throughout the structure. Existing buildings would have 12 years to install them.
| Sep 2, 2014
Construction unions, housing activists press New York mayor on affordable apartment projects
A group of New York City construction unions have joined forces with affordable housing activists to pressure Mayor Bill de Blasio to require organized labor on construction of 80,000 lower-cost apartment units.
| Aug 27, 2014
Houma, La., will tap FEMA grants to raise hurricane resilience standards on public buildings
The Houma-Terrebonne Civic Center and other public buildings in Houma, La., would be renovated to withstand Category 3 hurricane winds according to a plan being considered by the Parish Council.
| Aug 27, 2014
Napa Valley assesses impact of structural retrofits on buildings after earthquake
About 30 inspection teams of two inspectors each have conducted at least quick exterior inspections of downtown Napa, Calif., buildings since a magnitude 6.0 earthquake struck the region.
| Aug 27, 2014
Liberty Building Forensics cautions hotel building teams on moisture, mold issues
Liberty Building Forensics Group, a building forensics firm warned building teams working on hotel projects to be on guard against moisture intrusion and mold.
| Aug 27, 2014
Requirement for site safety inspectors hampering construction in New York City
New York City’s regulation that requires contractors to hire independent safety inspectors for job sites is holding up projects worth millions of dollars, contractors say.
| Aug 27, 2014
Turkish government orders demolition of residential towers in Istanbul
Citing negative effects to a world heritage site, the Turkish central government has ruled that the recently completed OnaltiDokuz Residence towers must be demolished.
| Aug 21, 2014
Industry groups agree to streamline green building tool coordination and development
Major building industry groups the International Code Council (ICC), ASHRAE, the American Institute of Architects (AIA), the Illuminating Engineering Society of North America (IES), and the U.S. Green Building Council (USGBC) have agreed to collaborate on the development of Standard 189.1, the International Green Construction Code (IgCC), and the LEED green building program.
| Aug 21, 2014
Performance-based zoning: U.S. cities starting to loosen zoning regulations
Driven by New Urbanism, more than two dozen communities in the U.S. have loosened zoning restrictions in recent years.
| Aug 21, 2014
Meeting to finalize amendments to green property underwriting standard
The National Public Meeting for Resiliency + Infrastructure Consensus Underwriting Standard Amendments will take place September 16, from 9 a.m.-12p.m. at Perkins+Will, 1250 24th St. NW, Washington, DC in the World Wildlife Fund Building.
