Section R. 400.18655 - Heating plantsRule 655.
(1) In an existing facility, the central heating plant shall be segregated in a room that has walls, a ceiling, and a floor constructed of materials which have not less than a 1-hour-fire-resistance rating.(2) A doorway or other opening through a required enclosure for a heating plant shall be constructed of materials which have not less than a 1-hour-fire-resistance rating which are hung so as to be reasonably smoketight and which are equipped with adequate self-closing devices.(3) A furnace room or enclosure shall be provided with an air vent which is directly to the outside and which is sufficient to admit the required volume of air to support proper combustion. An air vent shall be open at all times. A vent may be protected by louvers or other approved devices.(4) A gas or electric meter shall not be permitted within 5 feet of the heating plant.(5) A space heater is not permitted in any congregate facility.Mich. Admin. Code R. 400.18655