The Heat King Mobile Glycol Heating System provides a fast way to prepare foundation sites and cure concrete in cold weather. Three field pumps are offered to provide heat to thaw up to 11,200 square feet of frozen ground or cure up to 22,400 square feet of concrete. When used with one or two of the company's HX200 heat exchange units, the system can provide temporary heat for up to 15,000 square feet. Computer control simplifies operation and ensures efficiency. Crown Construction Equipment. 800-661-0304.