1.waste oil heater,various fuals applicable 2.Floor type, automatic running, low noise and powerful blowing 3. ... -EXT-20B:Descriptions:1. Oil consumption: 2 - 20 (KG/Hour)2. Output heat: 20,400-204,000(KCal/h) or 24-237 (KW ... engine oil, waste gear oil, waste vegetable oil, diesel etc.2. Floor type, automatic running, low noise and powerful blowing;3 ...