Top 100: Small, but Hot

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Top 100

Ground Heaters AC1100Ground Heaters designed its newest model, the AC1100, to be small and simple to operate, yet with the capacity to thaw or cure large areas. Like its larger Ground Heater counterpart models, says the manufacturer, the AC1100 features a performance-monitoring system, digital temperature controller and an efficient heating system. List prices range from $20,900 to $25,900.