ONTARIO, California., January 14, 2022 /PRNewswire/ — The Hydronic Industry Alliance-Commercial (HIA-C), a committee of the International Association of Plumbing and Mechanical Officials’ (IAPMO) Radiant Professionals Alliance (RPA), has released version 6.0 of its Building Tool Efficiency System Tool (BEST), an interactive application for comparing the efficiency of commercial building HVAC systems.

Revised software, available online at no charge, adds the ability to compare projected costs and energy consumption for all HVAC systems and hot water consumption in any building based on what is known before no money is spent on selecting HVAC and water heating systems, and almost all inputs can be adjusted once the design process begins.

BEST 6.0 is available for download at http://forms.iapmo.org/hiac/software_register.aspx.

BEST 6.0 also includes the following advancements:

  • Ability to model multiple heating and cooling sources. This allows the modeling of all electrical systems using cascading heat pumps and backup sources.
  • Cascading systems can include:
    • Air-to-water (ATW) heat pumps with water-to-water (WTW) boosters and boiler backup sources.
    • Water-to-air (WTA) heat pumps with ATW heat pumps and boiler backup sources.
    • WTW and WTA heat pumps with hybrid geothermal sources.
    • Air-to-Air (ATA) Heat Pumps with Furnace, Boiler, or Resistance Backup Sources
    • Multiple types of configurable heating or cooling sources for load sharing.
  • Air-source heat pumps with the ability to model user-definable ambient temperatures for switching on backup sources or shutting down the heat pump.

“BEST is an early modeling tool for sorting out options for HVAC systems when very little information is known about the building,” said Greg Cunniff, PE, director of applied solutions for Williams Comfort Products. “With the trend towards all-electric solutions, including cascaded heat pump systems, BEST is able to quickly and easily compare these innovative ideas. Legacy modeling software currently struggles to compare these new ideas.”

When introduced in 2016, BEST solved a long-standing industry problem of being able to accurately compare different styles of HVAC systems, all of which are tested to different standards, with different efficiency ratings (EER, IEER, SEER, COP, HSPF), as applied in a real building.

To learn more about the Hydronic Industry Alliance-Commercial and the Radiant Professionals Alliance, or to join this important effort to promote efficiency, visit www.HIA-C.org and www.radiantpros.org.

Since 1994, the Radiant Professionals Alliance, formerly the Radiant Panel Association, has been promoting radiant heating as comfortable, effective and healthy on behalf of its network of dedicated members, who share a desire to advance the understanding and acceptance of radiant and hydronic technology. .

SOURCE International Association of Plumbing and Mechanical Officials (IAPMO)