Despite these drawbacks, the heap kiln was used as means of lime production in association with land clearing operations. Heap kilns inherent flaw lies in the impossibility of burn-quality control in the log heaps. The product that resulted from this method of lime production was often of variable quality and used for little other than fertilizer.
Although there were some drawbacks, heap kilns were employed as a means of producing lime in conjunction with land clearing operations. A major flaw of the heap kiln design is that it makes it impossible to control the burn quality within log heaps. As a result, the resulting lime product was often of inconsistent quality and was mainly used for agricultural purposes.