New weapon in the battle against crop damaging frost

A Waikato company is trialling a new type of giant hot-air blower which is designed to create a blanket of warmer air over crops during frosty weather. Fred Phillips, of the company Heat Ranger is testing two prototypes in frost-prone Cromwell. His machine burns LPG and rotates 360 degrees. He hopes to be able to get the invention to market in time for next winter