Grilling with propane? Let it breathe.

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Grill Backside Grill Vent Op 2 Grill Req Dg

Cooking outdoors on a grill is a great alternative for cooking food. The downside, working with gas powered appliances requires proper ventilation to prevent gas buildup. NFPA 58 and ANSI Z233.1-1961 are the governing standards for fire and gas codes. They both defer to manufacturer manuals for proper installation and safety instructions. Some form of ventilation is required with all gas systems; for LP-gas tanks they specifically must be used outside of residences.

 

LP-gas powered grill islands are growing in popularity, which has brought up many questions about proper installation. “Do it yourself” or DIY construction of these islands can be hazardous if done incorrectly. Manufacturers define some of the requirements for the housing structure of the grill. A uniform way to properly vent these systems is not provided, due to the NFPA deference to the manufacturer’s instructions. The danger associated with enclosed pressurized gas tanks cannot be understated. Even though the gas line system may be properly installed and have no leaks, fires and explosions can still occur. For example, leaving a closed grill on without igniting the gases allows build up to occur in the hood and settle into the enclosed pressurized gas tank area. By following all instructions provided in the grill manual most accidents can easily be avoided.

 

Twin Eagles Gas Grill Installation, Use, and Care Manual, provides a great example for manufacturer defined requirements. In their notes they state there should be two areas for ventilation for an enclosed space, as defined by LP-Gas. A vent level with the cylinder valve and the other at floor level; the combined area required for these vents needs accommodate one inch per gallon of fuel. The most common LP-gas cylinders hold 20 gallons of fuel; therefore the total combined area required for vent space is 20 square inches. This is the requirement provided by both the manufacturer and the LP-gas industry and is the minimum vent area needed to meet national standards.