53 Pa. Stat. § 14529
The Fire Marshal, and his chief assistant and his assistants, shall have a right at all reasonable hours, for the purpose of examination, to enter into and upon all buildings and premises within their jurisdiction. Whenever any said officers shall find any building which, by reason of age and dilapidated condition or for any other cause, is especially liable to fire, and which is so situated as to endanger other buildings or property, or so occupied that fire would endanger persons or property therein, and whenever any such officers shall find in any building or upon any premises highly combustible or explosive materials, oils, and greases, or conditions and combinations dangerous to the safety of said buildings or premises, they shall order the same to be removed or remedied, and such order shall be forthwith complied with by the owner or occupant of said buildings or premises: Provided, however, That if the said occupant or owner shall deem himself aggrieved by such order, he may appeal in writing to the Director of the Department of Public Safety within three (3) days after having received notice of the decision of the Fire Marshal, specifying in such appeal the reasons and ground therefor. The Director of Public Safety shall immediately refer such appeal to a commission, which shall consist of the Chief of the Fire Department, the Chief of the Bureau of Building Inspection, and the Secretary of the Philadelphia Fire Underwriters' Association. Said commission shall carefully consider said appeal and make decision thereon, and its decision shall be conclusive. The decision of any two shall be the decision of the commission. Failing to comply with the orders of the authorities above specified shall be deemed guilty of keep and maintaining a nuisance detrimental to life and property, and, on conviction before any magistrate, be fined twenty-five dollars, or, in default of such payment, imprisoned in the county prison not more than thirty days.
53 P.S. § 14529