(A) A permit shall be required for:
(1) The installation, alteration or repair (except such minor repair not involving the removal of a burner from its application) of any gas burner or gas equipment;
(2) The installation, alteration or repair (except minor repair work) of any heating system, except stoves;
(3) The installation of any device or apparatus requiring the use of manufactured gas, natural gas or liquid petroleum gas. Such permits shall be issued to licensed installers only.
(B) Application for permits shall be filed with the engineer.
(`89 Code, § 22.050)