This course provides an overview of key central system design considerations. It explores the different system components, including next generation refrigerants, and gives an update on the status and evolution of available plug-n-play commercial equipment. Lastly, it walks through the Ecosizer tool available to properly size central heat pump systems.  
Audience: This class is intended for building owners/manager, developers, architects, designers, builders, code inspectors, and engineers.
Learning Goals
At the end of the class, participants will:
• Review the key factors that determine the eligibility for central heat pump installation
• Discuss the fundamentals of central heat pump design and operation
• Identify the various components used in central heat pump water heater systems
• Learn how to use Ecotope’s new sizing tool, the Ecosizer
Eligible for 1 AIA Learning Unit


DJ smile.pngColin Grist, P.E., CPHC® | Ecotope

Colin Grist primarily specializes in heat pump water heating systems. He has designed and commissioned over a dozen successful systems from multiple vendors. Colin also works on all other facets of mechanical and plumbing system design. He performs building analysis, load calculations, energy modeling, and HVAC engineering design using tools such as AutoCAD, Revit, and eQUEST. On site, Colin works closely with clients on commissioning, construction administration, and energy audits of new and existing buildings.  Colin leads the central heat pump water heating engineering team at Ecotope, Inc., and serves as instructor on behalf of D+R LEARN.

Education & Training:

  • B.S. in Mechanical Engineering, University of St. Thomas, 2011
  • Professional Engineer, WA