Summer Grill & Outdoor Cooking Safety: Prevent Fires and Gas Leaks

Why grill safety matters more than most people think

The NFPA reports an average of 10,600 home fires started by grills each year, causing $149 million in direct property damage, 160 injuries, and 10 deaths annually. July is the peak month — half of all grill fires happen between May and August. The leading causes: leaving the grill unattended (28%), leaks or breaks in gas connections (10%), and grills placed too close to combustible materials like wood decks, vinyl siding, and overhanging eaves. Most of these incidents are entirely preventable with a 15-minute pre-season inspection and proper placement.

Pre-season grill inspection checklist

• Gas leak test (propane and natural gas): Mix equal parts dish soap and water. Apply to every gas connection — the tank valve, regulator, hose connection, and manifold. Turn on the gas without lighting the burners. Look for bubbles. Any bubbling means a leak — tighten the connection or replace the component. Never use a match or lighter to check for leaks.
• Inspect the hose: Look for cracks, holes, brittleness, or kinks in the gas hose. Spiders and insects often nest inside gas tubes during winter, causing blockages that lead to flash fires when the grill is first lit. Clear tubes with a pipe cleaner or compressed air.
• Check burners and venturi tubes: Remove burners and inspect the ports (small holes where flames come out). Clogged ports cause uneven flames, yellow flames (incomplete combustion), or flames that burn at the base of the burner instead of the top — all fire hazards. Clean with a thin wire or port brush.
• Inspect the firebox and grease trap: Heavy grease buildup in the firebox is the fuel for grease fires — the #1 grill fire type. Scrape the firebox, empty and wash the grease trap/drip pan. Replace disposable drip pans.
• Test the igniter: Click the igniter with the lid open and gas off — you should see a spark. If not, check the battery (most igniters use AA or AAA) or the wire connection. A failed igniter means people light grills with the lid closed, allowing gas to accumulate — the leading cause of grill explosions.

Safe grill placement

• Minimum 10 feet from the house, deck railings, and overhanging branches — per NFPA recommendations
• Never grill under a covered patio, porch, or carport — heat rises and can ignite the ceiling or fascia
• On a wood deck: use a grill mat ($20–$40) to catch grease and embers. Better: place the grill on a concrete or stone patio pad
• Keep the grill on level ground — a tip-over on a sloped surface spills hot coals or flaming grease
• Never move a hot grill — wait until it's fully cooled
• Store propane tanks upright, outdoors, and away from heat sources. Never store a propane tank indoors or in a garage — a slow leak in an enclosed space creates an explosion hazard

During-use safety rules

• Always open the lid before lighting a gas grill — gas can accumulate under a closed lid and ignite in a fireball
• If the grill doesn't light within 5 seconds, turn off the gas, open the lid, and wait 5 minutes before trying again
• Never leave a lit grill unattended — this is the #1 cause of grill fires
• Keep a fire extinguisher (minimum 5-lb ABC type, $20–$40) within 10 feet. Baking soda works on small grease fires. Never use water on a grease fire — it splatters the burning grease
• Don't over-fill the grill with fatty foods — dripping fat causes flare-ups. Trim excess fat and use indirect heat for fatty cuts

When to call a professional

Call a plumber for: natural gas line installation or extension to an outdoor kitchen ($500–$2,000), gas leak repairs on permanent gas lines (never DIY gas line work — it requires permits and leak testing), and gas shut-off valve installation ($150–$400). Call a handyman for: assembling a new grill ($75–$150), mounting a grill shelf or outdoor prep station ($100–$300), and installing a grill mat or heat shield on a wood deck ($50–$150). Call a carpenter/deck builder for: repairing decking damaged by grill heat or grease ($200–$800), building a dedicated grilling pad or station ($500–$2,000), and reinforcing a deck to support a heavy built-in grill or outdoor kitchen ($1,000–$5,000).