... , there is no odor and no environment pollution. HCY Heating device are optional, there are oil-burner furnace, natural-gas furnace ... will produce different density diesel fuel oil. 2, HCY Heating device are optional, there are oil-burner furnace, natural-gas furnace ... /Out of pipemm25254040Equipment aream2004006001000Equipment weightT481216. HCY Waste engine oil distillation device