Plumbing, heat and air-conditioning installation

This class includes

This class includes the installation of plumbing, heating and air-conditioning systems, including additions, alterations, maintenance and repair.

This class includes:

• installation in buildings or other construction projects of:

. heating systems (electric, gas and oil)

. furnaces, cooling towers

. non-electric solar energy collectors

. plumbing and sanitary equipment

. ventilation and air-conditioning equipment and ducts

. gas fittings

. steam piping

. fire sprinkler systems

. lawn sprinkler systems

• duct work installation

Excludes

This class excludes:

• installation of electric baseboard heating, see 43.21