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
| Nov 20, 2014
Revamped zoning is transforming several New Jersey downtowns
The zoning policy shift could produce the biggest transformation of North New Jersey’s downtowns since the arrival of malls pulled shoppers away from town centers in the 1960s and 1970s.
| Nov 20, 2014
ANSI approves 2015 Wood-Frame Construction Manual standard
The American Wood Council's 2015 “Wood-Frame Construction Manual for One- and Two-Family Dwellings” (WFCM ) has been approved as an American National Standard by the American National Standards Institute (ANSI).
| Nov 17, 2014
AAMA releases new blast hazard mitigation specifications for vertical fenestration systems
This document provides a guide for manufacturers, architects/specifiers, contractors, and building owners for specifying types of systems and services to meet the requirements of blast hazard mitigation.
| Nov 17, 2014
National Roofing Contractors Assn. offers guide for LEED v4 provisions
National Roofing Contractors Association has released LEED v4: Roofing-related Provisions, a document that examines the roofing-related provisions of LEED v4.
| Nov 14, 2014
Army net-zero initiative moving past pilot stage
The U.S Army's ambitious net-zero initiative has had several successful pilot trials, and planners are prepared to expand the nine-part demonstration field to scores of other Army facilities.
| Nov 14, 2014
Former U.S. Treasury Secretary Paulson works to upgrade China’s building codes
Former U.S. Treasury Secretary Hank Paulson is today focused on making new construction in China more energy efficient by working with leaders to upgrade building codes.
| Nov 14, 2014
California aims for 20% reduction in water consumption by 2020
California’s comprehensive new water use plan makes conservation a priority, reinforcing a 2009 plan to reduce statewide per capita water consumption by 20% by 2020.
| Nov 6, 2014
Demountable structural steel could up the ante on sustainability
Demountable structural steel assemblies would be a greener way to make use of steel in the construction industry than recycling.
K-12 Schools | Nov 6, 2014
New Sandy Hook school features could influence security standards
The design of the new Sandy Hook Elementary School on the site of the 2012 Newtown, Conn., school shooting features enhanced security measures—some subtle and others more prominent.
| Nov 6, 2014
OSHA seeking input on electrical standards
The Occupational Safety and Health Administration (OSHA) is reviewing electrical standards for the construction industry to make sure proper safeguards are in place as electrical wiring is being installed and maintained.