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NYC Mechanical Code

§ 910.4 — § 910.4

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What is NYC MC § 910.4?

Quick Answer

This section establishes the required clearances for floor furnaces, specifying a minimum of 6 inches from grade level, which can be reduced to 2 inches if sealed against water. It mandates excavation to maintain these clearances and outlines additional side clearance requirements. Applies to building owners installing or maintaining floor furnaces.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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910.4 Clearance.

MC § 910.4

The lowest portion of the floor furnace shall have not less than a 6-inch (152.4 mm) clearance from the grade level; except where the lower 6-inch (152.4 mm) portion of the floor furnace is sealed by the manufacturer to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace so that the required clearance is provided beneath the lowest portion of the furnace. A 12-inch (304.8 mm) minimum clearance shall be provided on all sides except the control side, which shall have an 18-inch (457.2 mm) minimum clearance.

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