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frequently asked questions
What is the mechanical code?
The mechanical code controls the design, installation, maintenance, alteration, and inspection of mechanical systems, including heating systems, ventilating systems, steam and hot water heating systems, process piping, boilers and pressure vessels, appliances utilizing gas, liquid or solid fuel, chimneys and vents, mechanical refrigeration systems, fireplaces, barbecues, incinerators, crematories, fire suppression systems, air pollution control systems, and system utilizing solar or geothermal energy.
Are mechanical permits required?
Except for replacement of minor parts, mechanical work shall not be started until a permit for such work has been issued by the appropriate enforcing agency.
Permits are not required for
- Portable heating, cooking, or clothes drying appliances.
- Replacement of any minor part that does not alter approval of equipment or make the equipment unsafe.
- A portable heating appliance.
- A portable ventilation appliance.
- A portable cooling unit.
- Steam, hot or chilled water piping within any heating or cooling equipment regulated by the code.
- Replacement of any minor part that does not alter approval of equipment or make the equipment unsafe.
- A portable evaporative cooler.
- A self-contained portable refrigeration unit that is not more than 1.5 horsepower (1119 W).
- Portable fuel cell appliances that are not connected to a fixed piping system and are not interconnected to a power grid.
- Gas piping limited to 10 feet (3048 mm) in length and not more than 6 fittings.
Do you need a license to do mechanical work?
A state mechanical contractor's license is required to secure a mechanical permit except a homeowner may perform a mechanical installation in a single family dwelling which he or she occupies or will occupy.