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Combustion Heating Components

Air Diffusion Agencies are the leading Australian supplier of quality combustion heating components in Australia. 

As an authorised dealer for many combustion heating brands we offer a complete range of components for your heating system including; dektites, ceiling boxes, flue kits, chimney plates, flexi flue and much more. 

Browse through the categories or use the 'Product Filter' to search for the part you need. Can't find the part, just contact us with the details and we will help you out.

Flue pipe and casings

Bends and Offsets

Ceiling Boxes and Flanges

  • End Cap to suit 10" (254mm) Outer Ceiling Box. Available in a range of paint colours.  If the paint colour you require isn't listed please contact us with the details. 

    price (inc GST) $61.70
  • End Cap to suit 12" (305mm) Outer Ceiling Box. Available in a range of paint colours.  If the paint colour you require isn't listed please contact us with the details. 

    price (inc GST) $62.30
  • Ceiling Box Flange (10") 254mm. Suits Pitched Ceiling. Available in a range of paint colours.  

    price (inc GST) $92.00
  • Ceiling Box Flange (12") 305mm. Suits Pitched Ceiling. Available in a range of paint colours. 

    price (inc GST) $97.00
  • Wall Penetration Kit (10") 254mm OUTER - 900mm long. Comes complete with 2 x 45° flanges (loose) & 1 end cap fitted. 

    price (inc GST) $369.70
  • Floor Penetration Kit. (10") 254mm OUTER - 700mm long. Comes complete with 2 x ceiling box flanges (loose) & end cap fitted both ends.

    price (inc GST) $245.60

Paint and Sealant (High Temp)

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POSTAGE
Use the 'Set Shipping Address' button for postage estimation. Save on postage by selecting the 'Pick up' option at checkout and collect from a local Air Diffusion store.

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