Combustion System

Combustion System is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Boiler Repair & Cleaning

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Boiler & Heating Equipment Repair > Boiler Repair

Standard Industry Classification (SIC) Categories:

• Repair Shops And Related Services, Nec > Boiler & Heating Equipment Repair > Boiler Repair