Gardeco Lava Stones Rock Cooking Stones Lava Rock Lava Stones 4 litres

Amazon.com Price:  (as of 15/11/2021 11:57 PST- Details)

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Description

Helps prevent thermal shock and therefore cracking. Use in the bottom of clay chimeneas to prevent the hottest part of the fire touching the clay. Suitable for any clay chimeneas. One bag is enough for one chimenea. Can be used time and time again. Does not burn.