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4" Rocket Heater - Barrel Support w exhaust

  • Here you can see the 2 partial circle firebricks dry fitted together. They are the same radius as a 30 gallon metal barrel. The hole fits any piece of single wall 6" stove pipe. In our pictures, we are using a 90° elbow to connect to a vertical chimney.
  • Here is the reinforcing mesh. It is made from a mineral and does not present the expansion problems of steel. It does become unmeshed pretty easily; the edges are taped. The kit includes 2 pieces which tie the firebricks back into the rest of the block wall around the burn tunnel
  • This is how the barrel supports are used.
55.00 LBS
$60.00 (Fixed shipping cost)

Product Description

This kit provides support for a 30 gallon steel drum and a 6" exhaust opening. 

We found that 4" stove pipe is more expensive than 6" stove pipe and the 4" burn tunnel will work just as well with a 6" stove pipe. It is the only size where an increased stove pipe size is recommended.

Steel ties between your cement bricks and the firebrick are not recommended since the expansion rate of steel is greater than the fire clay and or mortar, this will cause the mortars to crack and break. We have include 2 strips of a high temperature mineral mesh that is stronger than steel and will keep your barrel supports and cement blocks bound together.

The grooves towards the edges are for the divider plate and gaskets.


  • 2 semicircular firebricks with 6" stove pipe opening
  • Special non steel mesh to tie the firebrick to cement block 

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