Mirror Fuel Savings Calculator Moisture Mirror users commonly report fuel savings of 30% or more! Gin Size < 25,000 CFM 25,000 - 50,000 CFM > 50,000 CFM Operating Hours hours / season Overtemp of deg F Fuel Type Natural Gas (CCF) Propane, Liquid (USG) Diesel Fuel (USG) Fuel Price $ / unit (USG or CCF) Your Savings $ (Enter the numbers for your gin and click 'Calculate.')