... oil. 2. CE approval, using safety. 3. One year warranty. Floor type Heater-- Usd oil fired heater EF-10 Descriptions:1 ... , used Glycerin, used Hydraulic oil, used synthetic oils, waste machine shop cutting oil, waste mineral spirits solvent, waste grades #1, #3 ... well as regular oils, such as diesel, etc.2. Indoor floor type, automatic running, low noise and powerful blowing; 3. Temperature ...