§ 84. Complaints as to service and price of steam heat; investigation
by commission; forms of complaints. Upon the complaint in writing of the
mayor of the city, the trustees of a village or the town board of a town
in which a person or corporation is authorized to manufacture, sell or
supply steam for heat or power, or upon the complaint in writing of not
less than fifty customers or purchasers of such steam heat in cities of
the first or second class, or of not less than twenty-five in cities of
the third class, or of not less than ten elsewhere, or upon the
complaint in writing of the department of state, as to the price,
pressure or efficiency of steam supplied for heat or power, sold and
delivered in such municipality, the commission shall investigate as to
the cause for such complaint. When such complaint is made, the
commission may, by its agents, examiners and inspectors, inspect the
work, system, plant, devices, appliances and methods used by such person
or corporation in manufacturing, transmitting and supplying such steam,
and may examine or cause to be examined the books and papers of such
person or corporation pertaining to the manufacture, sale, transmitting
and supplying of such steam. The form and contents of complaints made as
provided in this section shall be prescribed by the commission. Such
complaint shall be signed by the officers, or by the customers,
purchasers or subscribers making them, who must add to their signatures
their place of residence, by street and number, if any.