MightyVent 5″ UL Attic Insulation Shield

$175.00

The MightyVent AF 5″ attic insulation shield keeps insulation and debris away from your chimney where it passes into the attic. A galvanized steel shield wraps the pipe and sits on a 304 stainless base plate that fastens over the framed opening. A collar at the top closes it off around the pipe. Installed, it stands 15″ high.

*** Limited Availability: Initial stock of the new UL parts line is limited, so it’s currently only available if you’re purchasing a Dwarf Stove. Use another brand of stove with 5″ pipe? Let us know, and we’ll follow up when more is available. Already purchased a Dwarf Stove and need parts? Contact us and we’ll help you get set up. ***

Sold out, but more on the way! ETA late November 2026

SKU: 5AF-AIS Category:

Description

What an attic insulation shield does

Insulation and debris piled against a chimney can trap heat. The shield surrounds the pipe through the attic floor to keep insulation at a distance. It isn’t needed if the chimney is fully enclosed through the attic.

Specifications

  • Fits: MightyVent 5″ insulated pipe (7.28″ OD)
  • Framed opening: 11.5″ × 11.5″ inside dimensions (per the MightyVent instructions, Table 1)
  • Base plate: 13.58″ square, polished 304 stainless; 7.44″ pipe opening
  • Shield: 11.22″ diameter, galvanized steel
  • Installed height: 15″ (per the MightyVent instructions)
  • Top collar: wraps around the pipe and tightens with the supplied hardware
  • Listing: part of the MightyVent UL 103 Type HT chimney system

 

⚠ Warning: California Proposition 65

Use of this product can expose you to chemicals including soot, creosote, wood dust, and wood smoke containing carbon monoxide, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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