423730 Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

Official definition

This industry comprises establishments primarily engaged in the merchant wholesale distribution of warm air heating and air-conditioning equipment and supplies.

Examples Census gives

• Air pollution control equipment and supplies merchant wholesalers
• Nonportable electric baseboard heaters merchant wholesalers
• Air-conditioning equipment (except room units) merchant wholesalers
• Warm air central heating equipment merchant wholesalers
• Automotive air-conditioners merchant wholesalers
• Ductless heating and air-conditioning system equipment merchant wholesalers

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• Merchant wholesale distribution of household-type gas and electric appliances (except water heaters and heating stoves (i.e., noncooking)) and room air-conditioners are classified in Industry 423620, Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers.
• Merchant wholesale distribution of hydronic heating equipment are classified in Industry 423720, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers.
• Merchant wholesale distribution of commercial-type refrigeration equipment are classified in Industry 423740, Refrigeration Equipment and Supplies Merchant Wholesalers.
• Merchant wholesale distribution of refrigerants are classified in Industry 424690, Other Chemical and Allied Products Merchant Wholesalers.
• Selling and installing warm air heating and air-conditioning equipment are classified in Industry 238220, Plumbing, Heating, and Air-Conditioning Contractors.

Source: US Census Bureau, 2022 NAICS cross-references.

Activities listed under 423730

The Census index assigns these 19 activities to this code. If your business matches one, this is your code.

• Air pollution control equipment and supplies merchant wholesalers
• Air-conditioning equipment (except room units) merchant wholesalers
• Automotive air-conditioners merchant wholesalers
• Baseboard heaters, electric, nonportable, merchant wholesalers
• Central heating equipment, warm air, merchant wholesalers
• Compressors, air-conditioning, merchant wholesalers
• Condensing units, air-conditioning, merchant wholesalers
• Cooling equipment and supplies merchant wholesalers
• Ductless heating and air-conditioning system equipment merchant wholesalers
• Dust collection equipment merchant wholesalers
• Furnaces, warm air (i.e., forced air), merchant wholesalers
• Heat pumps merchant wholesalers
• Heating equipment, warm air (i.e. forced air), merchant wholesalers
• Humidifiers and dehumidifiers (except portable) merchant wholesalers
• HVAC equipment merchant wholesalers
• Pollution control equipment, air, merchant wholesalers
• Sheet metal duct work (heating and air-conditioning) merchant wholesalers
• Ventilating equipment and supplies (except household-type fans) merchant wholesalers
• Warm air heating equipment merchant wholesalers

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 423730

To count as a small business for SBA loans and federal contracts under NAICS 423730, your business (including affiliates) must not exceed 175 employees. Check your business.

Source: SBA table of size standards, effective March 17, 2023.

Closest UK SIC 2007 codes

There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 4530, 4663), so treat them as a starting point and check the definition.

• 46630Wholesale of mining, construction and civil engineering machineryUK SIC

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

• 423710Hardware Merchant Wholesalers
• 423720Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
• 423740Refrigeration Equipment and Supplies Merchant Wholesalers