R.H. Witt Heating & Sheet Metal is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Air Conditioning Equipment Parts & Supplies
• Furnace Cleaning & Repairing
• Heating & Air Conditioning Contractors
• Heating Contractors

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Boiler & Furnace Contractors > Furnace Cleaning & Repairing
• Plumbing, Heating, And Air-Conditioning Contractors > Heating Contractors
• Household Appliance Stores > Air Conditioning & Heating Systems

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Boiler & Furnace Contractors > Furnace Cleaning & Repairing
• Plumbing, Heating And Air Conditioning > Heating Contractors
• Household Appliance Stores > Air Conditioning & Heating Systems