333414 Heating Equipment (except Warm Air Furnaces) Manufacturing

Official definition

This U.S. industry comprises establishments primarily engaged in manufacturing heating equipment (except electric and warm air furnaces), such as heating boilers, heating stoves, floor and wall furnaces, and wall and baseboard heating units.

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:

• Manufacturing warm air furnaces are classified in U.S. Industry 333415, Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing.
• Manufacturing electric space heaters are classified in Industry 335210, Small Electrical Appliance Manufacturing.
• Manufacturing household-type cooking stoves and ranges are classified in Industry 335220, Major Household Appliance Manufacturing.
• Manufacturing industrial, power, and marine boilers are classified in Industry 332410, Power Boiler and Heat Exchanger Manufacturing.
• Manufacturing industrial process furnaces and ovens are classified in U.S. Industry 333994, Industrial Process Furnace and Oven Manufacturing.
• Manufacturing commercial-type cooking equipment are classified in Industry 333310, Commercial and Service Industry Machinery Manufacturing.

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

Activities listed under 333414

The Census index assigns these 27 activities to this code. If your business matches one, this is your code.

• Baseboard heating equipment manufacturing
• Boilers, heating, manufacturing
• Burners, heating, manufacturing
• Fireplace inserts (i.e., heat directing) manufacturing
• Furnaces (except forced air), heating, manufacturing
• Furnaces, floor and wall, manufacturing
• Gas burners, heating, manufacturing
• Gas fireplaces manufacturing
• Gas space heaters manufacturing
• Gas-oil burners, combination, manufacturing
• Heaters, space (except portable electric), manufacturing
• Heaters, swimming pool, manufacturing
• Heating equipment, hot water (except hot water heaters), manufacturing
• Heating units, baseboard, manufacturing
• Hydronic heating equipment manufacturing
• Kerosene space heaters manufacturing
• Logs, gas fireplace, manufacturing
• Oil burners, heating, manufacturing
• Radiators (except motor vehicle, portable electric) manufacturing
• Room heaters (except portable electric) manufacturing
• Solar energy heating equipment manufacturing
• Solar heating systems manufacturing
• Space heaters (except portable electric) manufacturing
• Steam heating equipment manufacturing
• Swimming pool heaters manufacturing
• Unit heaters (except portable electric) manufacturing
• Wood stoves manufacturing

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 333414

To count as a small business for SBA loans and federal contracts under NAICS 333414, your business (including affiliates) must not exceed 500 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: 2512, 2815), so treat them as a starting point and check the definition.

• 25120Manufacture of doors and windows of metalUK SIC
• 28150Manufacture of bearings, gears, gearing and driving elementsUK SIC

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

Similar codes to compare

• 333413Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
• 333415Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing