Dan Holohan's Seminars



Dan Holohan does just 15 seminars each year and may be one of the most expensive speakers you'll ever hire. He'll also be the best.

To see if he's available to fascinate your group with one of these topics, please call 1-800-853-8882, or e-mail mailroom@heatinghelp.com for details.

Classic Hydronics
In this all-technical three-hour seminar, Dan Holohan will give you a Liberal Arts education in those Classic Hydronics systems. He’ll have you seeing inside the pipes as he gives you a better understanding of how things work, what goes wrong with them, and why. He’ll share with you the secrets he’s picked up from the Old-Timers and he’ll make you a better troubleshooter.

We'll look closely at:
  • The critical importance of pressure differential
  • Gravity hot water heating
  • Pumping
  • Radiation
  • One-pipe loops
  • One-pipe primary-secondary systems
  • Diverter tees
  • Two-pipe direct- and reverse-return
  • Two-pipe primary-secondary
  • Multiple boiler systems
  • Two-temperature systems
  • Air problems and their solutions (once and for all)
  • Classic radiant
  • And more!

Dead Men's Steam School
This all-technical, three-hour seminar will make you familiar with the many types of old steam heating systems and what goes wrong with them. Dan Holohan’s easy-to-follow explanations will have you seeing inside these old systems. You’ll be a much better troubleshooter after this one. If you have to deal with America’s older steam systems, you’re going to love this course.

We'll look closely at:
  • Steam heating loads
  • Steam radiation of all kinds
  • Boiler ratings
  • Proper near-boiler piping
  • The importance of water quality
  • All sorts of system piping
  • The value of pipe insulation
  • Balancing systems with properly sized air vents
  • Curing water hammer once and for all
  • Getting the water back into the boiler
  • Pressure settings
  • Steam traps

Heating 'Round the World
In this three-hour, technical travelogue, Dan Holohan will take you on a fascinating tour of the heating systems and equipment he’s visited around the world. He’ll explain the thinking that goes into the design of these systems, and talk about what may be coming to the U.S.

We'll look closely at:
  • How (and why) the German D.I.N. standard forces Europe to be greener than we are in the U.S.
  • How one old technology can (and does!) dramatically reduce cooling loads
  • The power of the Chimney Sweep
  • Energy Performance Certificates – What they are, and why they’re slowly coming to America
  • Why Europeans put the pipes inside the rooms rather than within the walls
  • The enormous ISH Frankfurt show, and how economies of scale affect markets
  • Micro-CHP units are changing the way the world heats homes, and makes electricity
  • Modular hydronic components and square pipes!
  • Ground-source heat pumps and geothermal – both growing like crazy around the world.
  • How to use a simple throwaway device to charge each tenant individually for the heat used in every single room
  • The radiator as an art form, and what it says about marketing hydronics, and the buying public
  • Windows as sources of heat
  • Why burning wood is carbon-neutral, and becoming so popular around the world.
  • Radiant heating techniques in European “tract” housing
  • Why you need your room key to make anything work in a Danish hotel room (and why are the escalators don’t start until you step on them)
  • District hot-water heating systems, and how they’re changing the world
  • District hot-water systems tied to solar- and geothermal sources (coming to America!)
  • Passive House (Imagine a house with no heating system)