Heater - Infrared  Diesel Small for Hire in Botany and Sydney. The Infrared Small Diesel Heater is a diesel powered  heater for heating in large  open areas, it can also be used for drying purposes. It provides infrared heat as well as forced air heat.  Applications include heating in workshops, warehouses,  factories, garages, sheds, farm houses, porches, outdoor  events and more.