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 Electric734
343300Heating equipment, except electric252
34330000Heating equipment, except electric252
343301Burners, furnaces, boilers, and strokers137
34330100Burners, furnaces, boilers, and strokers43
34330101Boilers, low-pressure heating: steam or hot water38
34330102Furnaces, domestic steam or hot water2
34330103Gas burners, domestic8
34330104Gas burners, industrial17
34330105Gas-oil burners, combination3
34330106Oil burners, domestic or industrial17
34330107Stokers, mechanical: domestic or industrial9
343302Room and wall heaters, including radiators56
34330200Room and wall heaters, including radiators7
34330201Logs, gas fireplace25
34330202Radiators, except electric9
34330203Room heaters, except electric0
34330204Room heaters, gas2
34330205Space heaters, except electric6
34330206Unit heaters, domestic6
34330207Wall heaters, except electric1
343399Heating equipment, except electric, nec289
34339901Gas infrared heating units18
34339902Heaters, swimming pool: oil or gas12
34339904Solar heaters and collectors202
34339905Steam heating apparatus12
34339906Stoves, wood and coal burning44