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 Supplies9,459
507400Plumbing and hydronic heating supplies2,136
50740000Plumbing and hydronic heating supplies2,136
507401Water heaters and purification equipment1,318
50740100Water heaters and purification equipment150
50740101Water heaters, except electric32
50740102Water purification equipment703
50740103Water softeners433
507402Heating equipment (hydronic)1,545
50740200Heating equipment (hydronic)601
50740201Boilers, hot water heating59
50740202Boilers, power (industrial)64
50740203Boilers, steam33
50740205Fireplaces, prefabricated114
50740206Furnaces, except electric and warm air22
50740207Gas burners20
50740208Heating equipment and panels, solar524
50740209Oil burners82
50740210Radiators and parts, except electric21
50740211Sauna heaters, except electric4
507403Plumbing fittings and supplies4,396
50740300Plumbing fittings and supplies3,587
50740301Pipe and boiler covering13
50740302Pipes and fittings, plastic404
50740303Plumbers' brass goods and fittings106
50740304Plumbing and heating valves270
50740305Steam fittings16
507499Plumbing and hydronic heating supplies, nec64
50749901Sanitary ware, china or enameled iron17
50749902Sanitary ware, metal9
50749903Stoves, wood burning38