Section SPS 379.20 - Isolation of fire hazards(1) All boiler or furnace rooms, including the breeching and fuel room as well as other hazardous work rooms and storage rooms, shall be provided with a 2-hour fire-resistive floor and shall be enclosed with not less than one-hour fire-resistive walls and ceiling. All openings shall be protected with self-closing fire-resistive doors.(2) The enclosure for the heating plant may be omitted in apartment buildings not more than 2 stories in height and having not more than 2 apartments on a floor and in rooming houses not more than 2 stories in height and having not more than 8 living or sleeping rooms on each floor provided no part of the building is used for business purposes and all interior stairways are enclosed in the basement with a one-hour fire-resistive enclosure or better.(3) Gas-fired space heaters may be used in private apartments without an enclosure if approved by the department.Wis. Admin. Code Department of Safety and Professional Services SPS 379.20
1-2-56; renum. and am., Register, September, 1974, No. 225, eff. 10-1-74.