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DuraVent DuraTech 11 Inch Square Ceiling Support Box - For 5-Inch Inner Diameter DuraTech
DuraVent DuraTech 11 Inch Square Ceiling Support Box - For 5-Inch Inner Diameter DuraTech
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DuraVent DuraTech 11 Inch Square Ceiling Support Box - For 5-Inch Inner Diameter DuraTech
$311
75
Was
$379.99
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$68.24
(18%)
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Special Order: Usually ships within 3-4 weeks
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Product Details
Complete your DuraVent installation with this fine 11 Inch Square Ceiling Support Box for Close Clearance from Dura-Vent DuraTech. This support box measures 24 inches tall, and is designed for use with DuraTech pipes and components with the same 5-inch inner diameter. It's suitable for flat or cathedral ceilings, or any other special situation where close clearance is required. A 2-inch wide trim collar included with this Square Ceiling Support Box from the engineers at Dura-Vent DuraTech.
Customer Q&A with Product Specialists
Theresa W.
from WY asked:
Is this the new model that doesn't require an adapter to attach the stovepipe?
Yes, this is the updated DuraTech support box design with an integrated flue extension, meaning the stovepipe connects directly to the ceiling support without a separate adapter. The MPN for this item is 5DT-CS11-2. DuraVent confirms this feature in their spec sheet, which can be found here: DuraTech Support Boxes with Integrated Flue Extensions.
Answered by:
Aaron D.
on Jul 31, 2026
Yes. This is the updated DuraTech support box design with MPN 5DT-CS11-2. DuraVent builds these -2 support boxes with an integrated flue extension, allowing the stovepipe to connect directly to the ceiling support without a separate chimney adapter. DuraVent confirms this in their spec sheet: [DuraTech Support Boxes with Integrated Flue Extensions](https://www.efireplacestore.com/files/Manuals/dv_dt-supp_box_ss-001e-1721665079.3456.pdf).
Answered by:
Sid G.
on Jul 31, 2026
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