157.10 INSPECTION.
      1.   All mechanical installations, repairs, or alterations shall be subject to inspection by the Building Inspector. The Building Inspector shall have the right to enter upon any premises for the purpose of making such inspection.
      2.   The person to whom a mechanical permit has been issued shall give the Building Inspector notice that the work authorized by the permit is ready for inspection. Such notice shall be given not less than twenty-four hours before the work is to be inspected.
      3.   If the Building Inspector finds that a mechanical installation, repair, or alteration does not comply with the International Mechanical Code and with all other applicable statutes and regulations, said official shall deliver to the person to whom the mechanical permit was issued a written statement of the changes necessary to comply with said code, statutes, and regulations. The person to whom the mechanical permit was issued shall make the necessary changes within fifteen days after the written statement is delivered.
      4.   Any building supplied by L.P. Gas shall be equipped with an approved gas detector mounted twelve (12) inches above the floor in an approved location.