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
| Oct 24, 2013
D.C. office buildings going green at twice the national average
In 2011, about 33% of new office buildings in the U.S. were built to green standards, but in the nation’s capital that rate has skyrocketed.
| Oct 18, 2013
AGC considers suit over new hiring goals for vets, disabled
The Associated General Contractors of America and the HR Policy Association are reportedly considering taking legal action over the Labor Department's new hiring goals for veterans and disabled people.
| Oct 18, 2013
Cities may be more capable of driving sustainability than nations, experts say
With countries not tackling climate change aggressively, cities are in the best position to drive increased sustainability.
| Oct 8, 2013
Kansas City board OKs $1.6 billion TIF for $4.3 billion redevelopment project
Kansas City’s Tax Increment Financing Commission voted unanimously to forward the Bannister & I-435 TIF Plan to the Kansas City Council for approval.
| Oct 8, 2013
New Orleans advances $1 billion construction plan including new airport terminal
New Orleans plans to invest $1.1 billion in construction projects over the next five years.
| Oct 8, 2013
Report on large New York City buildings shows progress on energy efficiency
Buildings in New York City have been found to have a median score of 67 out of 100 in Energy Star's Portfolio Manager, an increase from 64 last year, and above the national average of 50, according to a study prepared by the Natural Resources Defense Council for the office of Mayor Michael Bloomberg.
| Oct 8, 2013
ConsensusDocs offers online prequalification management application to boost industry efficiency
In collaboration with ConsensusDocs, iSqFt has launched a new online platform designed to make the prequalification process for contractors and subcontractors seeking new work more efficient.
| Oct 8, 2013
Government shutdown closes E-Verify, could hamper construction hiring
E-Verify, the online federal program used to check the immigration status of prospective hires, has been closed due to the federal government shutdown.
| Oct 3, 2013
Florida contractors worry that regulations will hamper their ability to hire
Regulations such as the E-Verify rule and the Affordable Care Act could hinder contractors from hiring additional workers, according to some Florida contractors.
| Oct 3, 2013
Fall protection violations top OSHA citations list
Violations of fall-protection standards in fiscal 2013 are again the most frequent source of citations from the Occupational Safety and Health Administration, according to its top 10 list.