The redesigned E3000 Ground Heater boasts a 385,000 gross BTU/hour hydronic heater for ground thawing, concrete curing, or space heating applications. Its small size enables the heater to be easily loaded onto standard trucks. Able to run up to 140 hours continuously without refueling, the heater can thaw up to 4500 square feet to a depth of 1 foot per day or heat up to 6000 square feet of ground. Additional features include a digital temperature controller and 3000 feet of heat transfer hose. Ground Heaters Inc. 231-799-9600.