Common Flue

Internal installation made easy.

A common flue system is designed to control the exhaust of flue gases associated with continuous flow water heating in an unobtrusive and safe manner.

Every gas hot water system is different due to many constraints such as hot water demand, spatial restrictions and building construction to name just a few. A Rinnai common flue system is designed with flexibility in mind allowing either a natural draft or fan assisted flue to be tailor made to suit the plant room available. Manufactured in modules using robust materials makes transport and installation into those hard to reach places easy.

Combines flueing of continuous flow water heaters

Robust modular construction

Flexible design with Natural draft or fan assisted options

  • Robust twin skin galvanised steel construction
  • Patented draft divertor technology
  • Manufactured in modules to suit in line or back to back installations
  • Flexible design options
  • Suitable for use in new or existing buildings
  • Stainless steel version available

Common flue systems are exclusive to Rinnai and only certified for use in conjunction with our our HD200i continuous flow water heaters. They are usually installed on large systems when individual flueing is not considered cost effective or many penetrations are undesirable. For further information, please contact your Rinnai Commercial Representative.

The product information on this website (comprising product brochures, warranty information, installation manuals, diagrams, specifications and representations) relates to current products. This information may be different for superseded products. For superseded products please contact Rinnai to confirm product information.


  • Where to buy?

    Where to buy?

    You can use the store locator on our website to find your closest store.

  • How do I contact Rinnai?

    How do I contact Rinnai?

    You can contact us at 1300 555 545 or email us using the “contact us” form on our website.

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