A gas-fired unit heater is suspended from the overhead structure using four steel rods equipped with turnbuckles. A B-vent flue extends upward through the roof assembly, protected by watertight flashing and counterflashing, and terminates with a vent cap. The natural gas supply line includes a shut-off cock, a union, and a gas regulator before entering the unit. A minimum one-foot clearance is maintained between the heater and the overhead support structure.
FLASH AND COUNTER FLASH WATER TIGHT VENT CAP ROOF B-VENT FLUE SHUT-OFF COCK UNION NG SUPPORT UNIT HEATER FROM STRUCTURE. 1'-0" MIN. (4) STEEL RODS WITH TURN BUCKLES SEE MECHANICAL FLOOR PLANS FOR CONTINUATION AND SIZE GAS REGULATOR
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