How to Cure Concrete With Gas

Acquire the number of salamanders you will need, which will vary depending on the size of your project. These can be purchased or rented from building supply stores, construction equipment rental outlets and even outdoor party rental stores.

Call your natural gas supplier to connect the salamanders to your gas supply. Do not attempt to do this yourself. It's both illegal and dangerous.

Raise a canopy over the project. This will conserve heat and make the project move more quickly. Make sure the area is well ventilated or that the salamanders operate from outside the canopy and exhaust into fresh air. There is danger of carbon monoxide poisoning as well as damage to the concrete from excess carbon from the exhaust.

Keep the area moist with a mister or a sprinkler during the curing process. Direct heat from the salamanders can dry out the concrete around their outlets too rapidly, potentially causing cracks and weakness in those areas. Metal pans of water near the outlet will also work.

Cool the concrete down to ambient temperature gradually. A sudden change from warmth to subzero temperatures will crack the concrete. One strategy is to slowly turn off the salamanders over time or to cover the cured concrete with tarps, blankets or straw to protect it while its temperature goes down.