20 lb. Slate Black Heat Resistant Natural Fire Stones for Fireplace , Fire Pits

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  • $129.99 CAD
  • Regular price $159.99 CAD

  • Slate Black Semi polished Fire Stones
  • Natural Basalt Stones
  • Easy Installation
  • No smoke 
  • Perfect replacement for fire logs 
  • Retains more heat than ceramic logs 
  • Use in fireplaces, fire pits and garden 


These stones are heat resistant and will sustain heat generated by gas or ethanol systems (tested with positive results with units up to 90,000 BTUs).  Each fire stone bag covers most standard-size fireplaces (±1 sq. ft. coverage), and weighs 18 to 20 lb. Stone size is approx. 1 inch to 2 inch.  Please make sure to follow the fireplace or burner’s manufacturer’s recommendations before installation.

Please Note :  It is recommended to keep all the opening clear and a clearance space around the burner. Wash with lukewarm water to clean any residue, oil or dirt. Colors shown here are for reference only. Actual stones may vary in size and color. Before making a purchase make sure with your fireplace or fire pit manufacturer that it is fit to be used with stones. Improper use may lead to undesired results such as stones turning black or bursting flame.

Customer Reviews
5.0 Based on 4 Reviews
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Michelle S.
Canada Canada
Authentic stones

They are beautiful and function as indicated. We love them

Stephen I.
Canada Canada
Exactly as expected

I mixed them in with the stones that came with the firepit originally. Can't tell any difference.

Claire S.
Canada Canada
Replaced existing stones

Perfect love the look

B S.
Fire Rocks

These rocks are awesome - smooth and a good size with random shapes. Much nicer than the broken glass I had previously - easier to clean and they look great. They retain the heat after the gas is shutoff. Glad its a natural product.