Is this considered a midweight liner?

[Lastfling]

Or is it the type to be avoided?

Smooth Wall Chimney Liner

8'' x 25' Flexible chimney liner

Specifications:
Double-layer construction

• Liner Thickness: 012"
• Lifetime Warranty
• 316L Grade stainless steel build
• UL Listed to 1777 zero clearance standards

Thanks

 

[bholler]

Or is it the type to be avoided?

Smooth Wall Chimney Liner

8'' x 25' Flexible chimney liner

Specifications:
Double-layer construction

• Liner Thickness: 012"
• Lifetime Warranty
• 316L Grade stainless steel build
• UL Listed to 1777 zero clearance standards

Thanks

Sounds like the 2 ply stuff