Entrained air is one of the most persistent problems that plague hydronic heating systems. It is also one of the least understood. This webinar will help you understand why air elimination is critical for proper system function, how air problems develop, and how to rid the system of them. In addition to an exploration of air separation devices, it will give practical advice on system design and a process for effectively eliminating air from your hydronic heating system.

Participants will learn:

  • Why air must be removed from hydronic hot water systems
  • How air gets into the systems
  • The nature of air in its various states in the systems
  • The types of air removal devices that are available
  • The use and function of each device - with emphasis on central air separators
  • To select and size appropriate central air separators
  • To troubleshoot air problems at an introductory level


Jim Swetye
Jim Swetye
Senior Technical Trainer
Grundfos Pumps Corporation

Jim Swetye holds a bachelor of arts from Hiram College, Ohio and a master of science in education/curriculum leadership from Emporia State University. He is a former VP of Knowledge and Education for the Hydraulic Institute and is a certified trainer for Pump Systems Matter.