Industry: 3433—Heating Equipment, Except Electric and Warm Air Furnaces
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. Establishments primarily engaged in manufacturing warm air furnaces are classified in Industry 3585; cooking stoves and ranges are classified in Industry 3631; boiler shops primarily engaged in the production of industrial, power, and marine boilers are classified in Industry 3443; and those manufacturing industrial process furnaces and ovens are classified in Industry 3567.

Boilers, low-pressure heating: steam or hot waterRadiators, except electric
Fireplace insertsRange boilers, galvanized iron and nonferrous metal
Furnaces, domestic: steam or hot waterRoom heaters, except electric
Gas burners, domesticSalamanders, coke and gas burning
Gas heaters, roomSolar energy collectors, liquid or gas
Gas infrared heating unitsSolar heaters
Gas-oil burners, combinationSpace heaters, except electric
Heaters, swimming pool: oil or gasStokers, mechanical: domestic and industrial
Heating apparatus, except electric or warm airStoves, household: heating—except electric
Kerosene space heatersStoves, wood and coal burning
Logs, fireplace: gasUnit heaters, domestic: except electric
Oil burners, domestic and industrialWall heaters, except electric
Codes Titles Number of US Businesses
3433Heating Equipment, Except Electric722
343300Heating equipment, except electric257
34330000Heating equipment, except electric257
343301Burners, furnaces, boilers, and strokers130
34330100Burners, furnaces, boilers, and strokers43
34330101Boilers, low-pressure heating: steam or hot water35
34330102Furnaces, domestic steam or hot water2
34330103Gas burners, domestic7
34330104Gas burners, industrial15
34330105Gas-oil burners, combination3
34330106Oil burners, domestic or industrial17
34330107Stokers, mechanical: domestic or industrial8
343302Room and wall heaters, including radiators60
34330200Room and wall heaters, including radiators10
34330201Logs, gas fireplace24
34330202Radiators, except electric11
34330203Room heaters, except electric0
34330204Room heaters, gas2
34330205Space heaters, except electric6
34330206Unit heaters, domestic6
34330207Wall heaters, except electric1
343399Heating equipment, except electric, nec275
34339901Gas infrared heating units17
34339902Heaters, swimming pool: oil or gas13
34339904Solar heaters and collectors192
34339905Steam heating apparatus10
34339906Stoves, wood and coal burning42