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
Codes and Standards | May 1, 2015
Department of Energy asks for feedback on cost-effectiveness of building energy codes
DOE’s RFI wants input on how to improve methodology on cost assessment.
Codes and Standards | Apr 22, 2015
New York State renews design-build authority
Five state agencies are allowed to use design-build on certain projects.
Codes and Standards | Apr 22, 2015
OSHA’s estimated cost of silica rule said to underestimate impact by $4.5 billion annually
The coalition says that OSHA’s flawed cost estimates point to flaws in the rule, and has urged the federal agency to reconsider its approach.
Codes and Standards | Apr 22, 2015
2016 Seismic Provisions for Structural Steel Buildings draft available for public review
The comment period is open until May 29.
Codes and Standards | Apr 22, 2015
GBCI renamed Green Business Certification Inc.
The name change reflects the organization’s expanded certification and credentialing services.
Multifamily Housing | Apr 16, 2015
Seattle’s size restriction on micro apartments blamed for rise in rents
Seattle’s city planner recently said that the council’s new rules have made small apartments more expensive to build and charged the board with “overreaching” and not giving micro-housing “a fair shake.”
Green | Apr 16, 2015
New version of Building Energy Data Exchange Specification launched
BEDES is a dictionary that facilitates consistent exchange of building characteristics and energy use data between tools and databases in the building energy efficiency sector.
Codes and Standards | Apr 16, 2015
New York tops U.S. cities in walkability
Revitalization pushes Detroit and New Orleans up the rankings
Green | Apr 14, 2015
USGBC will recognize energy and water standards for the Living Building Challenge
This move means that projects achieving the energy and water requirements in Living Building Challenge will be considered as technically equivalent to LEED.
Codes and Standards | Apr 14, 2015
New York City preparing new codes for evacuation elevators
New York City’s Fire, Buildings, and City Planning Departments in New York are writing rules to govern occupant-evacuation elevators, reflecting a change in philosophy of how to evacuate people from skyscrapers in an emergency.
