Minnesota Administrative Rules

1311.0410 SECTION 410, BOILER/FURNACE EQUIPMENT ROOMS.

GREB Section 410.1 is amended to read as follows:

410.1 Shops not classified as Group H, laboratories, storage rooms with floor area exceeding 100 square feet in size, and rooms containing boilers or central heating plants in Groups A; B; E; F; H; I; M; R-1; R-2; and S occupancies shall be separated from the rest of the building by not less than a one-hour occupancy separation. When approved by the building official, existing wood lath and plaster in good condition or 1/2 inch (12.7 mm) gypsum wallboard may be accepted where one-hour occupancy separations are required.

Exceptions:

1. In Groups A; B; E; F; I; M; and S occupancies, a separation need not be provided where the largest price of fuel equipment does not exceed 400,000 Btu's per hour input.

2. In Group R-2 occupancies, a separation need not be provided for such rooms with equipment serving only one dwelling unit.

3. In Groups A; B; E; F; I; M; R; and S occupancies, a separation need not be provided if the hazardous area is protected with automatic sprinklers.

Statutory Authority:

MS s 16B.59; 16B.61; 16B.64; 326B.101; 326B.106; 326B.13

History:

27 SR 1479; L 2007 c 140 art 4 s 61; art 13 s 4

Published Electronically:

February 23, 2009