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Chimney Products > DuraTech® double-wall insulated chimney > 8" Dura Tech Chimney > Combustion Air System for 8" DuraTech > 

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8" Dura Tech Chimney
Combustion Air System for 8" DuraTech
8CAS-12
8CAS-24A
8CAS-46A
8CAS-68A
8CAS-ADK
8CAS-CS24DT
8CAS-CS24HTC
8CAS-CS36DT
8CAS-CS36HTC
8CAS-E45
8CAS-T
8CAS-WTDT
DirectVent Pro for direct vent gas stoves & fireplaces
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DuraPro Combustion Air System Triple Wall Stove Pipe
Combustion Air System for 8" DuraTech
 
Wall Thimble
Outside air is drawn through the wall thimble’s baffles, helping it pre-heat as it comes in contact with the hot inner exhaust pipe. The air continues down an air channel (pellet vent stoves), or an inner chamber of the combustion air stove pipe (wood stoves), through the aluminum flex and into the appliance, delivering fresh combustion air.

Ceiling Support Box
Fresh air is drawn and warmed through the top of the ceiling support box in the attic. The air continues down an inner chamber of the combustion air stove pipe and stubs out at the top of the stove or tee. Aluminum flex completes the connection to the appliance.

Eliminates the use of conditioned inside air for combustion.
Improve the efficiency of central heating systems by eliminating the use of conditioned room air for combustion. 

Patent-pending design pre-heats combustion air. 
Inbound air is circulated through baffles around the heated areas of the support box or wall thimble. For PelletVent Pro, the pre-heated air is delivered down a wall channel to assure that the pellet vent is not cooled. For DuraTech and HTC, the pre-heated air is supplied between the stove pipe’s 2nd and 3rd wall, while the 1st wall maintains high stove temperatures.

Enables outside air to be used as combustion air below grade.
The wall thimbles for both wood and pellet stoves provide combustion air to appliances used in below grade (basement) installations. Wood stoves utilize the triple wall stove pipe. Pellet stoves utilize the adjustable air channel. 

Minimizes down-drafts in below grade installations. 
Does not consume warm indoor air for combustion and not subject to oxygen starvation, poor draft and other problems associated with ‘tight’ energy efficient homes.

Simplifies installations with only one wall or ceiling penetration.
The system is designed to eliminate the need for a second penetration in the building envelope to introduce combustion air.

Simple, elegant design with decorative black finish.
All products are factory finished in matte black. 

Made in the USA.


8CAS-12
 
No Longer Available
8CAS-24A
 
No Longer Available
 
8CAS-46A
 
No Longer Available
8CAS-68A
 
No Longer Available
 
8CAS-ADK
 
No Longer Available
8CAS-CS24DT
 
No Longer Available
 
8CAS-CS24HTC
 
No Longer Available
8CAS-CS36DT
 
No Longer Available
 
8CAS-CS36HTC
 
No Longer Available
8CAS-E45
 
No Longer Available
 
8CAS-T
 
No Longer Available
8CAS-WTDT
 
No Longer Available
 

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