{
    "code": "3433",
    "title": "Heating Equipment, except Electric and Warm Air Furnaces",
    "sic_manual": "OSHA SIC Manual",
    "level": "Industry",
    "major_group_code": "34",
    "parent_code": "343",
    "parent_title": "Heating Equipment, except Electric and Warm Air; and Plumbing Fixtures",
    "plain_english_definition": "",
    "summary_plain": "",
    "official_definition": "Establishments primarily engaged in manufacturing heating equipment, except electric and warm air furnaces, including gas, oil, and stoker coal fired equipment for the automatic utilization of gaseous, liquid, and solid fuels.",
    "official_source": "https://www.osha.gov/sic-manual/3433",
    "classification_note": "",
    "included_activities": [
        "Boilers, low-pressure heating: steam or hot water",
        "Fireplace inserts",
        "Furnaces, domestic: steam or hot water",
        "Gas burners, domestic",
        "Gas heaters, room"
    ],
    "excluded_activities": [
        {
            "label": "Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment",
            "code": "3585",
            "title": "Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment",
            "url": "https://siccode.com/sic-code/3585/air-conditioning-warm-air-heating-equipment-commercial-industrial-refrigeration-equipment"
        },
        {
            "label": "Household Cooking Equipment",
            "code": "3631",
            "title": "Household Cooking Equipment",
            "url": "https://siccode.com/sic-code/3631/household-cooking-equipment"
        }
    ],
    "confused_codes": [],
    "official_siblings": [
        {
            "code": "3431",
            "title": "Enameled Iron and Metal Sanitary Ware",
            "url": "https://siccode.com/sic-code/3431/enameled-iron-metal-sanitary-ware",
            "label": "Industry"
        },
        {
            "code": "3432",
            "title": "Plumbing Fixture Fittings and Trim",
            "url": "https://siccode.com/sic-code/3432/plumbing-fixture-fittings-trim",
            "label": "Industry"
        },
        {
            "code": "3433",
            "title": "Heating Equipment, except Electric and Warm Air Furnaces",
            "url": "https://siccode.com/sic-code/3433/heating-equipment",
            "label": "Industry"
        }
    ],
    "official_children": [],
    "related_naics_codes": [
        {
            "code": "333414",
            "title": "Heating Equipment (except Warm Air Furnaces) Manufacturing",
            "url": "https://siccode.com/naics-code/333414/heating-equipment"
        }
    ],
    "example_companies": [
        {
            "name": "Fulton Thermal Corp",
            "url": "https://siccode.com/business/fulton-thermal-corp",
            "city": "Pulaski",
            "state": "NY",
            "reviewed": false
        },
        {
            "name": "Charah Solutions Inc",
            "url": "https://siccode.com/business/charah-solutions-inc",
            "city": "Louisville",
            "state": "KY",
            "reviewed": false
        },
        {
            "name": "Ground Heaters Inc",
            "url": "https://siccode.com/business/ground-heaters-inc",
            "city": "Butler",
            "state": "WI",
            "reviewed": false
        },
        {
            "name": "Watlow Electric Manufacturing Co",
            "url": "https://siccode.com/business/watlow-electric-manufacturing-co",
            "city": "Columbia",
            "state": "MO",
            "reviewed": false
        },
        {
            "name": "C B Nebraska Boiler Co",
            "url": "https://siccode.com/business/c-b-nebraska-boiler-co",
            "city": "Lincoln",
            "state": "NE",
            "reviewed": false
        },
        {
            "name": "Mestek Inc",
            "url": "https://siccode.com/business/mestek-inc-1",
            "city": "Farmville",
            "state": "NC",
            "reviewed": false
        },
        {
            "name": "Coen Co Inc",
            "url": "https://siccode.com/business/coen-co-inc",
            "city": "Tulsa",
            "state": "OK",
            "reviewed": false
        },
        {
            "name": "Central Boiler",
            "url": "https://siccode.com/business/central-boiler",
            "city": "Greenbush",
            "state": "MN",
            "reviewed": false
        },
        {
            "name": "Precision Speed Equipment Inc",
            "url": "https://siccode.com/business/precision-speed-equipment-inc",
            "city": "Sturgis",
            "state": "MI",
            "reviewed": false
        },
        {
            "name": "Thermal Engineering International",
            "url": "https://siccode.com/business/thermal-engineering-international",
            "city": "Joplin",
            "state": "MO",
            "reviewed": false
        },
        {
            "name": "Boyertown Foundry Co",
            "url": "https://siccode.com/business/boyertown-foundry-co",
            "city": "Boyertown",
            "state": "PA",
            "reviewed": false
        }
    ],
    "company_count": 645,
    "email_contact_count": 286,
    "phone_count": 611,
    "website_count": 670,
    "database_as_of": "Nov 13, 2026",
    "count_type": "commercial",
    "count_disclaimer": "These are SICCODE.com commercial database counts, not official government establishment totals. Website-Reviewed & Enriched is a separate review of company websites for products, services, markets, and fit.",
    "canonical_url": "https://siccode.com/sic-code/3433/heating-equipment",
    "json_url": "https://siccode.com/sic-code/3433.json",
    "reviewed_by": "Industry Classification Review Team",
    "last_updated": "October 2026"
}