Industry: 5074—Plumbing and Heating Equipment and Supplies (Hydronics)
Establishments primarily engaged in the wholesale distribution of hydronic plumbing and heating equipment and supplies. Construction contractors primarily engaged in installing plumbing and heating equipment from their own stock are classified in Construction, Industry 1711.

Boilers, power: industrial—wholesaleRadiators and parts, heating: nonelectric—wholesale
Boilers, steam and hot water heating—wholesaleRanges, except electric—wholesale
Burners, fuel oil and distillate oil—wholesaleSanitary ware, china or enameled iron—wholesale
Convectors—wholesaleSauna heaters, except electric—wholesale
Fireplaces, prefabricated—wholesaleSolar heating panels and equipment—wholesale
Furnaces, except electric and warm air—wholesaleSteam fittings—wholesale
Hydronic heating equipment and supplies—wholesaleStoves, cooking: except electric—wholesale
Metal sanitary ware—wholesaleStoves, wood burning—wholesale
Oil burners—wholesaleValves, plumbing and heating—wholesale
Pipe and boiler covering—wholesaleWater conditioning equipment—wholesale
Plumbers' brass goods, fittings, and valves—wholesaleWater heaters, except electric—wholesale
Plumbing and heating valves—wholesaleWater softeners—wholesale
Plumbing fixtures, equipment, and supplies—wholesale
Codes Titles Number of US Businesses
5074Plumbing and Hydronic Heating Supplies9,438
507400Plumbing and hydronic heating supplies4,035
50740000Plumbing and hydronic heating supplies4,035
507401Water heaters and purification equipment1,319
50740100Water heaters and purification equipment182
50740101Water heaters, except electric33
50740102Water purification equipment671
50740103Water softeners433
507402Heating equipment (hydronic)1,483
50740200Heating equipment (hydronic)553
50740201Boilers, hot water heating57
50740202Boilers, power (industrial)65
50740203Boilers, steam35
50740205Fireplaces, prefabricated105
50740206Furnaces, except electric and warm air21
50740207Gas burners20
50740208Heating equipment and panels, solar518
50740209Oil burners80
50740210Radiators and parts, except electric24
50740211Sauna heaters, except electric4
507403Plumbing fittings and supplies2,533
50740300Plumbing fittings and supplies1,806
50740301Pipe and boiler covering15
50740302Pipes and fittings, plastic368
50740303Plumbers' brass goods and fittings107
50740304Plumbing and heating valves221
50740305Steam fittings16
507499Plumbing and hydronic heating supplies, nec68
50749901Sanitary ware, china or enameled iron17
50749902Sanitary ware, metal10
50749903Stoves, wood burning41