Discount Heat Oil Company is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Fuel Oils
• Furnaces Heating Equipment & Supplies
• Heating Oils & Fuels

North American Industry Classification System (NAICS) Categories:

• Warm Air Heating And Air-Conditioning Equipment And Supplies Merchant Wholesalers > Stoves & Furnaces Equipment > Furnace Fittings & Repair Parts
• Heating Oil Dealers > Fuel Oil Dealers > Heating Oils & Fuels

Standard Industry Classification (SIC) Categories:

• Warm Air Heating & Air Conditioning > Stoves & Furnaces Equipment > Furnace Fittings & Repair Parts
• Fuel Oil Dealers > Fuel Oil Dealers, Nec > Heating Oils & Fuels