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FireFlex Poured Insulation (2.0 cu. ft. bag)

Real Reviews From Real Customers

1310 Reviews

01/14/25

Fantastic company and product Bill

Fantastic company and product Bill and Mike were extremely great to work with. The smooth liner was well constructed, packaged and shipped.

Yelena S.

01/14/25

Fantastic company and product Bill

Fantastic company and product Bill and Mike were extremely great to work with. The smooth liner was well constructed, packaged and shipped.

Yelena S.

FireFlex Poured Insulation (2.0 cu. ft. bag)

12/08/15

Nice

Could not fit the insulation wrap on my liner so this was a great replacement

Brian L.

12/08/15

Nice

FireFlex Poured Insulation (2.0 cu. ft. bag)

Could not fit the insulation wrap on my liner so this was a great replacement

Brian L.

12/17/24

Customer service was great resolving

Customer service was great resolving an issue with the shipping company. Overall excellent experience. Will order again if I have any other chimney needs in the future.

Elliott G.

12/17/24

Customer service was great resolving

Customer service was great resolving an issue with the shipping company. Overall excellent experience. Will order again if I have any other chimney needs in the future.

Elliott G.

FireFlex 316L/Ti Flexible Chimney Liner Tee Kit

10/25/24

Great got heat now

The shipping was great , it was here in 2 days. Liner is heavy duty should be last liner I will need in my lifetime. Would highly recommend, save move install yourself very easily if chimney has no obstructions. Would buy from this company again.

Melissa R.

10/25/24

Great got heat now

FireFlex 316L/Ti Flexible Chimney Liner Tee Kit

Melissa R.

FireFlex 316L Smooth Wall Chimney Liner Tee Kit

11/18/19

Quality

Mike is hands down the most professional online salesmen I have ever dealt with. Great product better support.

11/18/19

Quality

FireFlex 316L Smooth Wall Chimney Liner Tee Kit

Mike is hands down the most professional online salesmen I have ever dealt with. Great product better support.

01/28/25

The custom part fit perfectly.

The custom part fit perfectly. The quality was top notch and the part was manufactured, shipped and received in just a couple of days.

Wayne S.

01/28/25

The custom part fit perfectly.

The custom part fit perfectly. The quality was top notch and the part was manufactured, shipped and received in just a couple of days.

Wayne S.

FireFlex 316L/Ti Basic Flexible Chimney Liner Kit

01/21/25

Exactly as advertised

The instalation was about what I expected, I was able to get it installed in an hour or two with two helpers.

Don't forget.
To buy furnace cement for the connections!

Tim K.

01/21/25

Exactly as advertised

FireFlex 316L/Ti Basic Flexible Chimney Liner Kit

The instalation was about what I expected, I was able to get it installed in an hour or two with two helpers.

Don't forget.
To buy furnace cement for the connections!

Tim K.

01/14/25

These people were great to

These people were great to deal with. Had s slight problem with first cap that was s sent. Not damaged or anything like that, just incorrect size. One phone call and it was taken care with absolutely no problems. I would recommend and I would buy from them again.

Edgar R.

01/14/25

These people were great to

Edgar R.

Stainless Steel Chase Cover Custom Options

03/24/25

Stainless chase cover

Very impressed with the product! Very helpful in assisting us with what we needed and dimensions, thank you!

Dax H.

03/24/25

Stainless chase cover

Stainless Steel Chase Cover Custom Options

Very impressed with the product! Very helpful in assisting us with what we needed and dimensions, thank you!

Dax H.

01/14/25

Fantastic company and product Bill

Fantastic company and product Bill and Mike were extremely great to work with. The smooth liner was well constructed, packaged and shipped.

Yelena S.

01/14/25

Fantastic company and product Bill

Fantastic company and product Bill and Mike were extremely great to work with. The smooth liner was well constructed, packaged and shipped.

Yelena S.

FireFlex Poured Insulation (2.0 cu. ft. bag)

12/08/15

Nice

Could not fit the insulation wrap on my liner so this was a great replacement

Brian L.

12/08/15

Nice

FireFlex Poured Insulation (2.0 cu. ft. bag)

Could not fit the insulation wrap on my liner so this was a great replacement

Brian L.

12/17/24

Customer service was great resolving

Customer service was great resolving an issue with the shipping company. Overall excellent experience. Will order again if I have any other chimney needs in the future.

Elliott G.

12/17/24

Customer service was great resolving

Customer service was great resolving an issue with the shipping company. Overall excellent experience. Will order again if I have any other chimney needs in the future.

Elliott G.

FireFlex 316L/Ti Flexible Chimney Liner Tee Kit

10/25/24

Great got heat now

Melissa R.

10/25/24

Great got heat now

FireFlex 316L/Ti Flexible Chimney Liner Tee Kit

Melissa R.

FireFlex 316L Smooth Wall Chimney Liner Tee Kit

11/18/19

Quality

Mike is hands down the most professional online salesmen I have ever dealt with. Great product better support.

11/18/19

Quality

FireFlex 316L Smooth Wall Chimney Liner Tee Kit

Mike is hands down the most professional online salesmen I have ever dealt with. Great product better support.

01/28/25

The custom part fit perfectly.

The custom part fit perfectly. The quality was top notch and the part was manufactured, shipped and received in just a couple of days.

Wayne S.

01/28/25

The custom part fit perfectly.

The custom part fit perfectly. The quality was top notch and the part was manufactured, shipped and received in just a couple of days.

Wayne S.

FireFlex Poured Insulation (2.0 cu. ft. Bag)

In stock

SKU

FFPI

From $96.00

Details

Fireside's Poured Insulation is a mixed, vermiculite masonry material used for chimney flue insulation.

How many vermiculite bags of Fireflex chimney insulation mix are needed for your installation?

Manual Example:

A chimney that is 13" Long X 13" Wide and is 15' Tall with a 6" Liner installed needs 8 bags of Fireflex Mix. (see calculations below for an explanation)

STEP 1:
Measure the Length & Width of the interior of the chimney space. Multiply them together to find the GROSS area in sq-in.
Example: 13"L x 13"W = 169 GROSS sq-in

STEP 2:
Look at the chart below to find the area of the liner to be installed (Choose either the Round or Oval section depending on the liner shape). In the chart a 6" Round Liner = 28.26 sq-in. Subtract the Liner area from the GROSS area in Step-1.
Example: 169 - 8.26 = 140.74 sq-in NET sq-in area.

STEP 3:
Multiply the NET sq-in area by the Height (in inches) of the chimney to find the Cubic-Inch volume.
Example: 140.74 x 180"H = 25333.2 Cubic-Inches

STEP 4:
Convert Cubic-Inches to Cubic-Feet by dividing the Cubic-Inches from Step-3 by 1728 ( 1728 = 12L x 12W x 12D )
Example: 25333.2 / 1728 = 14.66 Cubic-Feet

STEP 5:
Each Fireflex Mix bag is 2 Cubic-Feet. Divide the Cubic-Feet from Step-4 by 2
Example: 14.66 / 2 = 7.33 = 8 Bags required

Calculator Example (does not calc Oval Liners)

FireFlex Poured Insulation (2.0 cu. ft. bag)

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