Flavorizer bars and heat tents are sacrificial. Once a peak warps so you can see a port row from the front, grease hits the burner and you get flare-ups plus uneven heat. Hammering them flat cracks porcelain and shortens the next set.
Hit models: Genesis II E-330 bars, Spirit II E-310 bars, 463242715 heat plates, 720-0888 heat plates, Rogue 425 sear plates. When to replace overview: when to replace heat plates. Finder: /.
Procedure
- Cold. Grates off. Sight down each bar/tent with a straight edge.
- Daylight over a port row, twisted peaks, or rust holes through the valley → replace that piece (usually the whole set for even height).
- Measure length and width. Count pieces. Brand + model search — do not mix Spirit 15.3” into Genesis 17.1”.
- Scrape the rail clean so new bars sit level.
- Install peaks over tubes. From the front, no naked port row.
- Grates on. Preheat. Re-check gaps that open when hot.
- Tubes already lace because bars failed first: replace tubes too (measure).
- IR Commercial carts: tents under emitters are not the same as emitters — see 463242715 heat plates vs emitters.
FAQ
Can I run without bars for one cook?
Not a good idea. Grease hits the tubes, flare-ups spike, and you accelerate burner failure.