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
| Aug 21, 2012
Federal Safe Building Code Incentive Act’s bipartisan support, no notable objection, bodes well for passage
The Safe Building Code Incentive Act would give states a little extra post-disaster federal funding if they enacted and enforced nationally recognized building codes for businesses and residences before disaster strikes.
| Aug 16, 2012
New York’s Barclays Center project accused of ignoring noise, pollution regulations
Construction crews racing to finish the Brooklyn Barclays Center are ignoring strict regulations to reduce noise and pollution, a new report by critics has found.
| Aug 16, 2012
Harness saves life of worker cleaning Washington state Capitol
Fall-protection equipment helped save the life of a worker who was cleaning the Washington state Capitol building in Olympia, after the platform he was using gave way.
| Aug 16, 2012
CSI webinar on August 21 focuses on electronic energy control
The Construction Specifications Institute (CSI) is sponsoring a free webinar on August 21 at 2:00 p.m. (EDT) on electronic energy control.
| Aug 16, 2012
Public sector pushes sustainable building forward
Not usually noted for its innovation, the public sector has done the most to advance sustainable building, according to a recent panel of green building professionals.
| Aug 16, 2012
Canada’s first net-positive building under construction in Milton, Ontario
The GreenLife Business Centre in Milton, Ontario near Toronto is set to become the first net-positive energy building in Canada.
| Aug 9, 2012
St. Paul cannot adopt overly restrictive egress windows policy, court rules
The Minnesota state Court of Appeals rejected St. Paul's attempt to adopt a policy on egress windows that was stricter than state law.
| Aug 9, 2012
Fire chief questions building code after St. Louis apartment building fire
A blaze that destroyed a 197-unit apartment building in St. Louis, Mo., displacing 250 residents, led the city’s fire chief to question the materials used in the construction of the four-story building.
| Aug 9, 2012
Ramps have strict criteria for ADA compliance
It is important for businesses to understand that an existing ramp at a building entrance may not mean that barrier removal obligations under the Americans with Disabilities Act have been met.
| Aug 9, 2012
ClickSafety, AGC provide online training program for construction professionals
Construction professionals will be able to take a wide range of mandatory and optional safety training programs online through a new collaboration between the Associated General Contractors of America and ClickSafety.