... 2.Automatically temperature-testing 3 Low fuel consumption Air Heating Furnace/Stove,Heat Treating Furnace,Hot Air Furnace Fuel ... fuel---like coal gas, natural gas, liquid gas. Applicable Range:1. Processing and drying for chemical, textile, pharmacy industry ... and solidifying for motorbike, container, home application etc.3. Heating supplying for industry and civil buildings. Working Principle: 1. ...