Code of Maryland Regulations
Title 09 - MARYLAND DEPARTMENT OF LABOR
Subtitle 12 - DIVISION OF LABOR AND INDUSTRY
Chapter 09.12.01 - Board of Boiler Rules
09.12.01.02 - Access and Egress

Universal Citation: MD Code Reg 09.12.01.02

09.12.01.02. Access and Egress

A. Clearance.

(1) Except for a water heater or a modular boiler system, a new or replacement boiler installed in a new or existing building shall be installed consistent with:

(a) Or exceeding, the manufacturer's recommendations for clearance; and

(b) The space requirements of § A(6) of this regulation.

(2) In the event manufacturer recommendations for clearance are not provided, a new or replacement boiler installed in a new or existing building, shall:

(a) Have at least 3 feet between:

(i) The top of the boiler and the ceiling, and

(ii) Each side of the boiler and the adjacent wall or other structure; and

(b) Comply with the conditions of § A(6) of this regulation.

(3) The distance between or around a new or replacement boiler in a modular boiler system installed in a new or existing building shall be in accordance with the manufacturer's recommendations while ensuring:

(a) There are 3 feet between each side of the perimeter of the boiler system and the adjacent wall or structure; and

(b) The conditions in § A(6) of this regulation are met.

(4) The distance between or around a water heater installed in a new or existing building shall be in accordance with the manufacturer's recommendations while ensuring the conditions of § A(6) of this regulation are met.

(5) A boiler or pressure vessel having a manhole shall have 5 feet clearance from the manhole opening to any wall, ceiling, or piping that prevents entrance through the manhole.

(6) A boiler or pressure vessel shall be located to provide adequate space for:

(a) Proper operation of the boiler or pressure vessel and its appurtenances;

(b) Inspection of all surfaces, tubes, water-walls, economizers, piping, valves, and other equipment; and

(c) Required maintenance and the repair and replacement of tubes.

B. Ladders and Runways.

(1) When necessary to afford safe access, a steel runway or platform of standard construction shall be installed across the tops of adjacent boilers or pressure vessels, or at another convenient level.

(2) When a valve or appurtenance requiring frequent manipulation cannot be reached or operated from the floor, a platform or other safe means of operation shall be provided.

(3) A platform or runway shall:

(a) Be at least 24 inches wide;

(b) Have standard handrails and toe boards; and

(c) Provide at least 7 feet, 6 inches overhead clearance.

(4) A runway shall:

(a) Have at least two means of exit, located remotely from each other; and

(b) Be connected to floor level by:

(i) A permanent stairway, or

(ii) An inclined ladder.

C. Each elevation in a boiler room shall have at least two exits, located remotely from each other, if the room:

(1) Exceeds 500 square feet floor area; and

(2) Contains one or more boilers having a fuel-burning capacity of 1,000,000 Btu per hour, or equivalent electrical heat input.

(Regulation .02CC amended and .02DD repealed effective June 1, 1982 (9:8 Md. R. 821)
Regulation .02PP amended effective November 4, 1985 (12:22 Md. R. 2103)
Regulations .02 adopted effective June 1, 1989 (16:10 Md. R. 1106)
Regulation .02A amended effective October 7, 1996 (23:20 Md. R. 1422); July 10, 2000 (27:13 Md. R. 1211); February 19, 2001 (28:3 Md. R. 205))
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