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Burn Through in Stainless Steel Burners

I grill. Remember the flame that is sucking the
I mean, I grill - often. I grill about 3 gas out of the burner? Now shut that gas
or 4 days a week, every week of the year, off. What happens? The gas is still
every year. Living 100 yards from Lake burning. When there is no more fuel, the
Erie, this is no small feat: it gets cold vacuum inside the burner actually sucks
in Cleveland in the winter, and we get whatever is right outside the burner,
our fair share of snow - most of which is resulting in an audible "pop" when the
lake effect, sometimes measured in feet flame goes out.
rather than inches. Here it is in a nutshell: you've been
I have often found myself outside after cooking food, right? You've been using
dark on a late December evening, in spices, sauces and rubs -- and the food
20-degree weather with an icy wind itself has its own juices. These are in
blowing in off the lake, snow half-way up the air surrounding the food and the
my shins, basting a roast on the burners, mostly as partially-burned
rotisserie. carbon particles. These carbon particles
Naturally, my wife thinks I am nuts. She get sucked into the burner when the flame
also thinks I am a great cook, which is is extinguished. These particles remain
neither here nor there. But, I digress... in the burner until the next time you
A couple of months ago, I noticed that fire up the grill. When you fire up the
the grill was heating unevenly. The left grill, these particles create chaos in
side was noticeably hotter than the the flow of the gas. The pressure of the
right. The flame was higher on the left, gas will hold these particles against the
and I had more problems with flare-up on sides of the burner. Reaching ignition
that side. Meanwhile, the right side was temperature, they eventually burn through
not cooking very well at all. The grill the metal from the inside out. Now you
is a 3-year-old Fiesta that my wife know why I had to replace my burner - and
bought at K-Mart shortly before we met. why you'll have to do the same if you
It sports a stainless steel sheet metal purchase a grill with a sheet metal
burner which is adequate for occasional burner.
use. I suspected that the burner was My story points out another issue: what
burned through since I use the grill much type of burner will your new grill have?
more than the manufacturer intended; I This is a major decision that many
wanted to replace it much earlier than overlook when they purchase a high-end
this, but since we were buying a house, I grill. Most grills, even well-known
placed the project on the back burner, so $3,000 to $5,000 units, have the same
to speak. stainless steel sheet metal burners that
The house threw us a couple of major I just replaced, and many have a
curveballs, the worst of which was a thickness in the 20- to 24-gauge range!
total replacement of our kitchen. At the Let's face it: buying a $3,000 grill is
time, we were waiting on our new like buying a Mercedes or a Lexus; you
countertops: we did not have a working shouldn't have to replace the engine in a
kitchen; the microwave and the grill were 3-year-old Lexus!
our only working kitchen appliances. If you purchase a grill with a stainless
Nice time for the grill to fail, huh? steel sheet metal (or cast iron/cast iron
One night during the remodel, I wanted to composite) burner, you will replace the
grill some chicken. I fired up the grill, burners at some point. The more often you
and noticed that the flame on the left grill, the more often you will replace
side of the grill reached the cooking the burner. The more expensive the grill,
grate, and the flame on the right was the more difficult the replacement.
barely noticeable. Our chicken browned "What?" you say! Stainless steel will
noticeably toward the left side, and rust? Well, yes, it *will* rust. It just
barely cooked on the right. These photos takes a lot longer. The idea that
show the old burner. stainless steel will neither stain or
I muddled my way through the meal, rust is a myth. The "stainless" in the
deciding to take action. The next day I term "stainless steel" refers to the fact
ordered a new burner/venturi set over the that there are no impurities in the metal
Internet. Since spiders love our new itself, and that nickel has been
house, I splurged on spider guards. The introduced into the alloy to produce a
only tools I needed for the job were a more acceptable finish. A lower grade of
pair of pliers and a screwdriver. I stainless steel with a lower nickel
assembled the burner/venturi assembly, content will attract a magnet, also
connected the ignitor to the burner, and contrary to popular myth.
went out to the grill. I disconnected the What, then, is the alternative to a
securing pins for the burner underneath stainless steel sheet metal burner? Cast
the grill and the old burner lifted out iron? Well, yes, but many grill
easily. The new burner settled gently manufacturers also use cast brass or cast
into place, and I connected the ignitor stainless steel, which will not rust or
and installed the spider screens. I burn through. Lynx and Fire Magic are two
tested the ignitor, and, satisfied that such grills, and they're even warranted
it worked properly, fired up the grill. against rust and burn-through. A
Even blue flame, about one and a half less-expensive alternative with cast
inches high, with yellow tips. Perfect. brass burners would be the Coleman 6000,
Nice, even heat again. Project completed, retailing for under $1,000 (photo right).
and in about a half-hour. This is not to disparage stainless steel
So why did this happen? Why did my burner sheet metal burners: Napoleon uses
rot from the inside out? The answer is 16-gauge stainless steel in their
simple physics. When your burner burns burners, much thicker than just about any
gas, the flame outside the burner creates other brand, and they tend to last longer
a vacuum inside the burner. An open valve than other manufacturer's burners. They
allows gas under high pressure to flow are still prone to rot and burn-through,
from its source into the burner, where however: it just takes a little longer,
the pressure is lower, and then continue that's all.
out to the outside to be burned. So, if you're shopping for a new grill,
So how does this cause burn-through? check the burner construction first.




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