CSL - Creosote Sweeping Log for Fireplaces and Woodstoves, Chimney Maintenance Firelog
CSL - Creosote Sweeping Log for Fireplaces and Woodstoves, Chimney Maintenance Firelog
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CSL

CSL - Creosote Sweeping Log for Fireplaces and Woodstoves, Chimney Maintenance Firelog

|1,462 ratings
CSL - Creosote Sweeping Log for Fireplaces and Woodstoves, Chimney Maintenance FirelogCSL Creosote Sweeping Log for Fireplaces and Woodstoves Chimney Maintenance Firelog3 pack CSL Creosote Sweeping Log for Fireplaces and Woodstoves Chimney Maintenance Firelog
Pack SizeSingle

Key item features

  • Effective Cleaning: Burns like a standard fireplace log while simultaneously cleaning your chimney.
  • Reduces Creosote: Neutralizes and removes flammable creosote within 2 weeks, reducing build-up and odors.
  • Long-lasting: Burns for up to 1.5 hours, providing thorough treatment.
  • Safety Approved: Accepted by the Chimney Safety Institute of America and UL-listed.
  • Versatile Use: Suitable for fireplaces, woodstoves, and combination wood/oil burning furnaces.
  • Regular Maintenance: Recommended use every 60 fires for best results, helping to prevent chimney fires.
  • Product Details: Weighs 3.1 lb and works on any kind of chimney, including stainless steel.
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Specs

Burn time, 15 hBrand, CSLFlame color, YellowOccasion, HolidayWeight, 3.1 lbManufacturer, JOSEPH ENTERPRISES, INC.

About this item

Product details

CSL - The Creosote Sweeping Log: for fireplaces and woodstoves is a simple and effective solution for cleaning your chimney, while enjoying your fireplace! CSL burns like a standard fireplace log, while simultaneously reducing dangerous creosote build-up. CSL helps prevent chimney fires if used every 50 fires or at least once a year.
CSL burns for approximately 90 minutes. During that time it heats the tar on your chimney wall to an ideal treatment temperature. The smoke from CSL is charged with minerals, which are deposited onto the creosote over several hours. During the next 15 days, the CSL treatment will continue to work and the creosote will gradually become brittle and break away. Any deposits that remain, will be rendered less flammable.
CSL is designed to work on any kind of chimney, including stainless steel. CSL may also be used in combination wood/oil burning furnaces.

CSL is a CSIA (Chimney Safety Institute of America) accepted product and is approved by UL.
  • CSL - Creosote Sweeping Log for Fireplaces and Woodstoves
  • Reduces new creosote build-up, making your next fire safer.
  • Burns like a standard fireplace log, while simultaneously cleaning your chimney.
  • Flammable creosote that builds up along the walls of your chimney are neutralized and removed within 2 weeks.
  • CSL action against creosote reduces odors. Minimizes future build-up of creosote. Use every 60 fires for best results.
  • Accepted by the Chimney Safety Institute of America.
  • Burns for up to 1.5 hours.
  • CSL is a UL-listed product
  • Product weight: 3.1 lb.
info:
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Specifications

Burn time

15 h

Brand

CSL

Flame color

Yellow

Occasion

Holiday

Warranty

Warranty information

1 year from purchase

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Customer ratings & reviews

4.6 out of 5 stars
stars
1,462 ratings389 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars77% (1,132)
  2. 4 stars12% (176)
  3. 3 stars4% (65)
  4. 2 stars2% (24)
  5. 1 star4% (65)
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 389 reviews

Oct 20, 2026
Reviewer name: Patricia
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Excellent product. I buy these every year.

Helpful?1FT57GJL6EGO30329881
Apr 22, 2026
Reviewer name: DeDo
Top Reviewer
Item details
Count: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

turns creosote to dust

Used this brand for years. I have never had a problem with my chimney. When brushing the creosote it is nothing but dust. not sticky sap. This works perfetly

Helpful?1FT57GJL6EGO30329881
Feb 22, 2026
Reviewer name: Tom
Top Reviewer
Item details
Count: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Creosote reducer.

Used these for years, they do what they are designed for, dries out the oily creosote that builds up in chimney flues and liners. I clean my own chimney so I see how these help every year. Albeit the price has gone up I still buy one or two as I fire my insert all during the cold season.

Helpful?1FT57GJL6EGO30329881
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