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 18, 2014
GBCI to administer PEER certification for power grids and building projects
The Green Building Certification Institute (GBCI) will administer certification for the Performance Excellence in Electricity Renewal (PEER) program.
| Sep 18, 2014
Master Painter Institute approves 55 new paint products
The Master Painter Institute has issued approvals for 55 new paint products.
| Sep 18, 2014
OSHA announces new requirements for reporting deaths and severe injuries
The U.S. Department of Labor's Occupational Safety and Health Administration announced a final rule requiring employers to notify OSHA when an employee is killed on the job or suffers a work-related hospitalization, amputation, or loss of an eye.
| Sep 18, 2014
Eugene, Ore., passes ordinance to achieve steep energy consumption reductions
The Eugene, Ore., City Council recently passed an ordinance aimed at steeply reducing energy consumption and greenhouse gas emissions.
| Sep 10, 2014
Nine out of 10 New York City building plans fail energy code test
Earlier this year, New York City's Department of Buildings began auditing thousands of architectural plans for new and renovated office and residential buildings.
| Sep 10, 2014
AIA, CSI, and NIBS publish updated national CAD standard, includes new BIM module
The NCS helps architects, constructors and operators coordinate efforts by classifying electronic design data consistently and making information retrieval easier, the industry groups say.
| Sep 10, 2014
Perry named new director of OSHA’s Standards and Guidance Directorate
Bill Perry has been named new director of the OSHA’s Directorate of Standards and Guidance, effective Aug. 24, 2014.
| Sep 10, 2014
ASHRAE proposes verification for energy standard
The ASHRAE/IES energy standard would have multiple compliance options to ensure verification of delivered building envelope performance under a new proposal.
| Sep 2, 2014
Micro-apartment concept can’t get traction in Boston suburb
Micro-apartments are gaining acceptance in nearby Boston and in places such as San Francisco and New York, but Weymouth, Mass., officials and neighbors were not receptive to a proposal for tiny dwellings this summer.
| Sep 2, 2014
Montreal borough leader urges city to issue green roof guidelines
The mayor of Montreal's Saint-Laurent borough wants Quebec's housing authority to speed up its plan to publish construction guidelines for green roofs.
