The Furnace Doctor

The Furnace Doctor is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Furnace Cleaning & Repairing
• Furnaces Heating Equipment & Supplies

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Boiler & Furnace Contractors > Furnace Cleaning & Repairing
• Warm Air Heating And Air-Conditioning Equipment And Supplies Merchant Wholesalers > Stoves & Furnaces Equipment > Furnace Fittings & Repair Parts

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Boiler & Furnace Contractors > Furnace Cleaning & Repairing
• Warm Air Heating & Air Conditioning > Stoves & Furnaces Equipment > Furnace Fittings & Repair Parts