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    334512 - Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use

    When it comes to maintaining comfortable and efficient indoor environments, automatic environmental control devices play an essential role. NAICS code 334512 defines a specialized manufacturing sector dedicated to producing these smart, automated systems designed for residential, commercial, and appliance applications. In today’s post, we dive deep into what this NAICS code entails, the businesses it encompasses, and why it’s crucial for industries ranging from HVAC to appliance manufacturing.


    What Is NAICS Code 334512?

    NAICS 334512 pertains to the Automatic Environmental Control Manufacturing industry. This sector includes establishments primarily engaged in manufacturing automatic environmental control devices and systems. These devices regulate environmental parameters such as temperature, humidity, airflow, and related conditions in residential homes, commercial spaces, and appliances.

    Key products in this category include:

    • Thermostats
    • Humidistats
    • Automatic control systems for heating, ventilation, and air conditioning (HVAC)
    • Various environmental sensing and regulating devices

    Sector Overview & Typical Business Activities

    • Sector: Manufacturing
    • Industry role: Producing automated devices that regulate environmental conditions to improve comfort, safety, and energy efficiency across buildings and appliances.

    Typical Business Activities Under NAICS 334512:

    • Manufacturing temperature and humidity controls for HVAC systems
    • Producing computerized environmental control systems for buildings
    • Creating appliance control components such as dryer controls, oven temperature controls, and ignition controls
    • Manufacturing air flow controllers, damper operators, and flame safety controls
    • Building monitoring and sequencing control systems for residential and commercial use

    Size Standards & Eligibility

    For government contracting and small business classification, NAICS code 334512 defines a company’s size standard as having up to 650 employees. Organizations with employee counts below this threshold typically qualify as a small business under SBA standards for this industry, which can be advantageous for federal contract opportunities and assistance programs.


    Examples of Businesses Included in NAICS 334512

    To better understand the types of businesses operating under this NAICS code, consider:

    • Thermostat manufacturers providing standard and smart home thermostats
    • HVAC control system producers specializing in automatic climate control units
    • Environmental control device manufacturers that design appliance-specific controls like dryer timers or oven sensors
    • Companies that produce automatic flame safety controls for furnaces and boilers

    Detailed Code Breakdown: Products & Manufacturing Types

    Product/Service Description Manufacturing Focus
    Air flow controllers (except valves) Airflow regulation components
    Air-conditioning and refrigeration controls HVAC system management devices
    Appliance controls manufacturing Dryer, oven, and related appliance regulators
    Appliance regulators (except switches) Environmental control components
    Building services monitoring controls, automatic Automated building environmental monitoring
    Clothes dryer controls incl. dryness controls Dryer operation and moisture detection
    Combination limit and fan controls Integrated heating/ventilation device controls
    Computerized environmental control systems for buildings Smart building climate control
    Damper operators (electric, pneumatic, thermostatic) Airflow modulation hardware
    Electric air cleaner controls, automatic Air purification device controls
    Electric heat proportioning and modulating controls Heating element power modulation
    Electric space heater controls, automatic Residential and commercial heaters
    Energy cutoff controls (residential and commercial) Safety shutoff mechanisms
    Fan controls, temperature responsive Thermostatic fan speed regulation
    Flame safety controls for furnaces and boilers Ignition and flame monitoring
    Float controls (residential and commercial types) Liquid level regulation
    Gas burner automatic controls (except valves) Gas appliance combustion control
    Heating and cooling system controls (residential and commercial) HVAC temperature and humidity regulation
    Heating regulators Thermostatic regulators
    Humidistats (duct, skeleton, wall) Humidity control devices
    Humidity controls, air-conditioning-type Electronic humidity management
    Hydronic circulator and limit controls Hot water system flow and temperature controls
    Ice maker, ice bank, refrigeration controls Appliance ice making and cooling control
    Ignition controls for gas appliances and furnaces Automated ignition systems
    In-built thermostats (filled system and bimetal types) Integral thermostat device manufacturing
    Incinerator control systems (residential and commercial) Waste heat environmental controls
    Light responsive appliance controls Automatic lighting-based control devices
    Limit controls (air-conditioning, appliance, heating) Safety limit switches
    Oven temperature controls, nonindustrial Residential and commercial oven regulation
    Pneumatic relays and switches, thermostatic Pneumatic control devices
    Pressure controllers and stats (air-conditioning system-type) Pressure regulation in HVAC systems
    Primary oil burner controls (cadmium cells, stack controls) Combustion efficiency and safety management
    Refrigeration thermostats and defrost controls Cold storage environment regulation
    Room thermostats Room temperature regulation devices
    Sequencing controls for electric heating equipment Electrical heating system sequencing
    Static pressure regulators Airflow pressure stabilization
    Steam pressure controls (residential and commercial) Steam heating system regulation
    Surface burner temperature controls Burner flame management
    Temperature sensors for motor windings Motor temperature monitoring
    Thermocouples, glass vacuum Temperature measurement elements
    Time program controls, air-conditioning systems Scheduled HVAC operation devices
    Vapor heating controls Vapor-based heating regulation
    Water heater controls Hot water appliance environmental regulation

    FAQ: NAICS 334512 - Automatic Environmental Control Manufacturing

    Q1: What types of products fall under NAICS 334512?
    A1: Products such as thermostats, humidistats, furnace flame safety controls, air flow controllers, and computerized HVAC control systems are covered under this NAICS code.

    Q2: What industries rely on NAICS 334512 manufacturers?
    A2: Residential and commercial HVAC, appliance manufacturers, building automation companies, and energy management firms commonly rely on these manufacturers.

    Q3: How many employees can a business have to be classified under this NAICS code for small business standards?
    A3: Businesses with up to 650 employees are considered small for NAICS 334512 purposes.

    Q4: Are only appliance-related controls included?
    A4: No, this code covers both appliance controls and systems designed for residential and commercial environmental control.

    Q5: Can this NAICS code be used for government contracting purposes?
    A5: Yes, NAICS 334512 is widely used in federal contracting, particularly for projects involving HVAC equipment, building automation, and appliance control manufacturing.


    NAICS code 334512 plays a vital role in the manufacturing landscape by overseeing the production of automatic environmental control devices that keep homes, businesses, and appliances operating efficiently and safely. From thermostats and humidistats to complex computerized building controls, businesses within this industry help deliver comfort and energy savings worldwide. With a size standard of 650 employees, the industry spans small specialized manufacturers and larger companies alike, making it a crucial NAICS code for companies involved in automated environmental regulation technologies.


    Keywords: NAICS code 334512, automatic environmental control manufacturing, thermostat manufacturing, HVAC control systems, appliance control devices, environmental control manufacturing, building automation systems, small business size standard 334512