Registration:                    8:00 – 8:30 am

Morning Session:             8:30 am – 12:30 pm

Lunch (On your own):       12:30 – 1:30 pm

Afternoon Session:           1:30 – 4:30 pm

General Overview of Geothermal Heat Pumps and
Application to Indoor Thermal Comfort

   Forced air and domestic hot water

   Applying geo heat pumps to HVAC systems

   Integrating heat pump hot water production with HVAC

   Calculating heating and cooling loads

   Effects of air flow and insulation

   Measuring comfort

   Understanding efficiency

Understanding Earth Loop Systems

   Architecture of closed loop systems

      • Horizontal ground loops

      • Pond loops

      • Vertical ground loops

   Applications for open loop systems

      • Standing column wells

      • Single well systems (pump and dump)

      • Two-well systems

   Evaluating the topography

   Measuring soil conductivity

   Ground loop environments 

Designing Geothermal Systems

   Determining loop type

   Making heat loss calculations, consider the future

   Sizing the unit, consider variable speed (or at least dual speed) units

   Sizing the loop field, again, consider the future

   Balancing field flow

   Oversize for greater efficiency

Choosing Systems and Materials

   Basic components for geothermal heat pump systems

      • Circulating pump

      • Heat pumps

      • Heat exchangers

      • Field manifold

      • Forced air systems

      • Hydronic systems

   Domestic hot water options

      • Tank and W-W heat pump

      • Hot gas heat recovery

      • Can be supplemented with gas or electric

Evaluating the Benefits of Geothermal Systems

   Incentives for using geothermal

      • Tax credits

      • Utility and other incentives

      • Stability of utility cost

      • Maintenance

   Environmental benefits for applying geothermal

      • Reduced use of nonrenewable energy

      • Lower water and sewer use


     6.5 HSW Contact Hours
     6.5 AIA HSW Learning Units

Professional Engineers
     6.5 PDHs

Ohio HVAC Contractors
     6.5 Technology Hours

Continuing Education Credit Information

This seminar is open to the public and offers up to 6.5 HSW continuing education hours to architects and 6.5 PDHs to professional engineers in all states. Educators and courses are not subject to preapproval in Ohio.

This seminar is approved by the American Institute of Architects for 6.5 HSW Learning Units (Sponsor No. J885).

HalfMoon Education is an approved continuing education sponsor for architects in Florida and is deemed an approved sponsor in New York. HalfMoon Education is an approved continuing education sponsor for engineers in Florida, Indiana, Louisiana, Maryland, New Jersey (Approval No. 24GP00000700), New York (NYSED Sponsor No. 35), North Carolina, and North Dakota.

The Ohio Construction Industry Licensing Board has approved this event for 6.5 Technology hours for HVAC contractors.

Attendance will be monitored and attendance certificates will be available after the seminar for most individuals who complete the entire event. Attendance certificates not available at the seminar will be mailed to participants within fifteen business days.


James Hardin

Geothermal Innovations, LLC

Sr. Vice President of Engineering, Geothermal Innovations, LLCMr. Hardin has spent the past 40 years at the forefront of developments in energy efficiency. He developed several patented technologies, including the Water+ system, the Well2Well system, BiSec heat exchanger, and the GEX 4 heat exchanger, plus several other energy applications in the geothermal, energy management, and lighting industries. He works under a philosophyof increasing operational efficiency by providing higher-quality, energy-related services at reduced levels of overhead. Prior to forming Hardin Geothermal, Mr. Hardin was energy manager for Illinova Energy Partners, Inc., managing multimillion dollar construction projects for healthcare facilities and aluminum processing plants throughout the USA. Mr. Hardin began his career in the 1980s as senior energy manager/engineer in charge of installing geothermal systems for petrochemical plants in Braziland later in West Africa.