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
| Mar 14, 2013
Possible tax code changes prompt action from various industries, including construction
With Congress potentially tackling tax reform, businesses, trade groups and others are jockeying to get their voices heard.
| Mar 14, 2013
Concrete Polishing Association of America releases new standards
The Concrete Polishing Association of America(CPAA) Standards Committee, which reflects a cross-section of the concrete polishing industry, has created terminology to define the products and processes used to produce insitu polished concrete.
| Mar 14, 2013
World Green Building Council: Green buildings help mitigate real estate risk
Green buildings can offer benefits to a wide array of stakeholders throughout their life cycle, according to a report released by the World Green Building Council.
| Mar 14, 2013
Sustainability index aims to evaluate REITs on the greenness of their properties
FTSE Group, the National Association of Real Estate Investment Trusts, and the U.S. Green Building Council are working on a sustainability index that measures the portfolios of real estate investment trusts to provide transparency about LEED certification and Energy Star ratings.
| Mar 6, 2013
OSHA: Employers must post injury and illness summaries
The Occupational Safety and Health Administration is reminding employers to post OSHA Form 300A, which lists a summary of the total number of job-related injuries and illnesses that occurred during 2012.
| Mar 6, 2013
Study provides guidance to states on linking utility efficiency programs with energy codes
As states increasingly look to utilities to play an active role in supporting building energy codes, a new report from a coalition of energy efficiency advocates, has been issued to provide guidance for how state regulatory commissions and energy offices can best develop and evaluate such efforts.
| Mar 6, 2013
Triple-pane windows, heat pumps part of New York’s plan to meet 2050 emissions goal
Renovations providing better insulation, triple-paned windows, heat pumps and other techniques that minimize heat loss and save on energy use for residential and commercial buildings are key to New York City’s goal of reducing its carbon emissions by 90% by 2050.
| Mar 6, 2013
EPA asks for feedback on Energy Star criteria on tubular daylighting devices and skylights
The U.S. Environmental Protection Agency (EPA) has requested feedback from stakeholders about draft two of the Energy Star tubular daylighting devices (TDD) and revised skylight criteria.
| Mar 6, 2013
AAMA moves to streamline windows, doors certification extensions
The American Architectural Manufacturers Association (AAMA) says it will update an interim procedural guide that will provide a documented, optional process to extend current, unexpired AAMA product certification.
| Feb 26, 2013
Tax incentive database for reflective roofs available
The Roof Coatings Manufacturers Association (RCMA) and the Database of State Incentives for Renewables & Efficiency (DSIRE) created a database of current information on rebates and tax credits for installing reflective roofs.
