Earth4u

Earth4u is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Geothermal Heating & Cooling Contractors
• Heat Pumps
• Solar Energy Equipment & Supplies
• Heating Contractors

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Heating Contractors
• Plumbing, Heating, And Air-Conditioning Contractors > Geothermal Heating & Cooling Contractors
• Plumbing And Heating Equipment And Supplies (Hydronics) Merchant Wholesalers > Hydronic Heating Equipment > Solar Energy Equipment Wholesale
• Household Appliance Stores > Air Conditioning & Heating Systems > Heat Pumps

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Heating Contractors
• Plumbing, Heating And Air Conditioning > Geothermal Heating & Cooling Contractors
• Plumbing And Heating Equipment And Supplies (Hydronics) > Solar Energy Equipment & Supplies Wholesale
• Household Appliance Stores > Air Conditioning & Heating Systems > Heat Pumps