| 333414 |
Solar energy heating equipment manufacturing |
| 333414 |
Solar heating systems manufacturing |
| 333414 |
Space heaters (except portable electric) manufacturing |
| 333414 |
Steam heating equipment manufacturing |
| 333414 |
Swimming pool heaters manufacturing |
| 333414 |
Unit heaters (except portable electric) manufacturing |
| 333414 |
Wood stoves manufacturing |
| 333415 |
Air-conditioners, unit (e.g., motor home, travel trailer, window), manufacturing |
| 333415 |
Air-conditioning and warm air heating combination units manufacturing |
| 333415 |
Air-conditioning compressors (except motor vehicle) manufacturing |