The DryAir 900 GTS Flex GreenThaw™ System is a high-capacity, diesel or tri-fuel ground heater delivering 896,000 BTU/h. Equipped with 8,000 ft of 5/8″ hose, it efficiently thaws up to 16,000 ft² and cures concrete slabs up to 36,000 ft². Features include a flow reverser for uniform heat distribution, combustion environment control for reliable cold-weather starts, and a redesigned hose reel with variable speed and smart braking for safe, single-operator deployment.