Registration:                    8:00 – 8:30 am

Morning Session:             8:30 am – 12:00 pm

Lunch (On your own):       12:00 – 1:00 pm

Afternoon Session:           1:00 – 4:30 pm

Overview of Systems to be Covered

   High-performance, code-surpassing, condensing boilers

   Air-source heat pumps

   Ground-source heat pumps

   Pellet-fired boilers

   Solar-assisted space heating

Condensing vs. Traditional Systems

   Why condense and how to optimize condensing heating performance

   Resetting water temperatures for peak operating efficiency

   Right-sizing and condensing operation for peak efficiency

   The value of a high turn-down ratio for peak efficiency

   Parallel cascading operation vs lead-lag operation for peak efficiency

   Report on results of study of field performance: lessons learned

Design Scenarios and Discussion

   Retrofitting an existing hydronic system

   Designing a hydronic system for new construction

   Retrofitting an existing steam system to hydronic operation

      • Relative efficiencies for steam and hydronic systems

   Retrofitting with pellet-fired boiler systems

      • Efficiency, operation and optimization

Heat Pumps: How They Work

   COP (Coefficient of performance): measure of efficiency for heat pumps in heating mode

   Performance in cold climates and COPs at different outside air temperatures

   Understanding current heat pump rating systems and their limitations

   Air-source and ground-source heat pumps

   Air-to-air, water-to-air, and water-to-water systems

   Split systems, mini-splits, and ducted systems

Ground-Source Heat Pump Case Study

   Borehole field

   Water to air heat pumps

   Temperature controls and scheduling

   Lessons learned

Air-Source Heat Pump Case Study

   Outdoor condenser

   Indoor terminal equipment

   Temperature controls and scheduling

   Lessons learned


Solar-Assisted Space Heating

   New construction

   Rooftop solar thermal panels

   Radiant floor heat delivery system

   Hot water storage tank

   Lessons learned

Round Up and Review


     6.5 HSW Contact Hours
     6.5 AIA HSW Learning Units

Professional Engineers
     6.5 PDHs

Building Performance Institute
     3.25 CEUs

     Non-Mandatory Cont. Ed.

Continuing Education Credit Information

This seminar is open to the public and offers up to 6.5 HSW contact hours to architects and 6.5 PDHs to professional engineers in all states. HalfMoon Education is an approved continuing education provider for New Jersey engineers (Approval No. 24GP00000700). Educators and courses are not subject to preapproval in Pennsylvania.

This event has been approved by the American Institute of Architects for 6.5 HSW Learning Units (Sponsor No. J885). Courses approved by the AIA qualify for New Jersey architects.

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

The Building Performance Institute has awarded 3.25 CEUs for the completion of this seminar.

This seminar also offers a non-mandatory education opportunity for contractors; it has not been approved in any state which has a contractor continuing education requirement.

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.


Bart Bales PE MSME

Principal and Professional Consulting Engineer at Bales Energy Associates in Massachusetts
Bales Energy Associates provides energy analysis, design, and implementation of high-performance, energy-efficient and renewable energy systems for buildings and facilities with an emphasis on a “whole-systems”, building science-based approach. Mr. Bales’ studies include detailed investigations and recommendations for temperature controls and building automation system optimization and improvement.

Bales Energy Associates provides study services for whole building energy analyses; high-performance mechanical design; and solar energy and wind energy systems analysis & design services. Mr. Bales is the principal of Bales Energy Associates and has effectively delivered energy engineering and HVAC design services for thirty years.

In recognition of the critical importance of heating systems in high-performance, energy-efficient, green buildings, Mr. Bales developed the following workshops: 

High-Performance, Energy-Efficient ‘Green Heating’ Systems
Cold-Climate Heat Pumps, Pellet Boilers, & Other Renewable Thermal Heating Systems
 Air-Source Heat Pumps, Mini-Splits and Heat Pump Water Heaters

 Mr. Bales is a registered professional mechanical engineer in Massachusetts, Connecticut, New York, Rhode Island, and Vermont. His energy analysis experience and expertise includes comprehensive facility energy audits and feasibility studies for energy efficiency measures; combined heat and power (cogeneration) systems, solar electric, solar thermal, and windpower systems.