Compact features provide faster and more efficient gathering and storage of a sufficient reservoir of heated water to heat a shaving mirror to non-fogging temperature. A magnetic recording medium comprising a nonmagnetic lower layer and a magnetic layer provided in this order on a support wherein said magnetic layer comprises a ferromagnetic metal powder or a ferromagnetic hexagonal ferrite powder and a binder and has a coercive force equal to or higher than 143 kAm. The mast assembly is raised to an upright position whereby a rear portion of the mast extends over the wellhead.