This section explains how the versatile nature of heat exchangers can be adjusted depending on the application for which is required:

• Explanation of Heat Exchanger Modules
  An introduction into the ‘G’ model heat exchangers.

• Control Application Notes
  A detailed description into the various method of contorting the ‘G’ model heat exchangers.

• Flue Application Notes
  Methods of venting the heat exchanger modules.

• Pulse Combustion Control
  An introduction to advanced method of thermostatic control.

• Mod 1 Combustion Control
  Increased temperature accuracy is acheived using relays and other switching devices.