Requiring and providing for the licensing of heating and ventilating contractors by the comissioner of administration, exemptions, specifying certain examination, education and qualification requirements, prohibiting the performanace of work on heating and ventilating systems by persons other than employees of licensed contractors; specifying contractors license bond and liability insurance requirements; requiring the commissioner to appoint a heating and ventilating advisory council, specifying membership requirements and duties; specifying certain license fees, authorizing commissioner adjustment to recover administration and enforcement costs, requiring crediting to the special revenue fund; authorizing local government units to impose a surcharge on building permits requiring licensed heating and ventilating contractors for license verification purposes, limit; requiring the commissioner in consultation with the council to adopt standards for continuing education requirements and course approval for licensed contractors, specifying certain standards, minimum hours and accessibility requirements; requiring licensed contractor name and address change notices to the commissioner; specifying contractor license application and examination requirements; prohibiting local licensing, exception; authorizing and providing for commissioner denial, suspension or revocation of licenses under certain conditions and authorizing certain administrative action; imposing penalties for certain violations; prohibiting local government units from issuing building permits to unlicensed contractors; requiring and providing for annual license renewal; specifying certain license number display requirements; providing for the conflict of certain other laws; authorizing certain commissioner rules; providing for initial temporary licenses and fees (rla)