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-   -   Uneven flame on propane grill (http://www.diychatroom.com/f47/uneven-flame-propane-grill-108025/)

jmhultin 06-18-2011 01:17 PM

Uneven flame on propane grill
 
There might be a better section to post this.

I have a propane grill, about 15 years old - was a quality grill at the time I bought it. There are two burners - the left side was shooting yellow flames - I inspected the burner, and it was rusted out. I've replaced the burner, but the left side still produces more yellow flame than the right (the 2 burners are in a single piece - a figure 8). When the left side is on high, it makes a significantly louder hiss than the right side.

I disconnected the burner (and I'll probably make the pros shutter at my methodology) I held a match in front of the jets that normally fit into the venturi tubs. Both appear to shoot out equal length flames.

Since it's a new burner, and I've inpected it and there are no spider webs inside, can anybody give me any answers?

Bud Cline 06-18-2011 01:21 PM

Are the orifices the proper ones? They come for propane and natural gas and they are two different items.:)

How about the dampers? Are they adjusted properly.

About doing what you did with the match...ARE YOU CRAZY?:laughing:

jmhultin 06-18-2011 02:12 PM

I remember when I first purchased the grill, I had huge flames shooting out of the burners - when I called the retailer, they were chagrinned and came out and swapped out some fittings. They said it had been set up for natural gas.

I assume by orifice, you're referring to the "jets" that fits into the venturi tubes. They each have a pinhole that the gas comes out of. They look the same.

And by dampers, I assume you mean adjustable venturi closings. Neither the new or old venturi tubes have adjustable dampers, though I have attempted to cover parts of those holes and it does seem to make a little difference.

As to the crazy part - that's why women live longer than men.:whistling2:

Bud Cline 06-18-2011 02:18 PM

Yes the "pinhole" things.

I'm only guessing as I have been down this path a time or two but don't pretend to understand any of it. I do know the orifice variables are just barely detectable to my eye, there isn't much difference in appearance that I could ever see between the propane and the natural gas. I have never seen a gas burner anything (of the outdoor grill type) that didn't have air adjustment dampers.:)

jmhultin 06-18-2011 02:34 PM

Thanks - I'll look into the pinhole issue again (perhaps using a more scientific method). The two sides aren't wildly different, so I can live with it.

Thanks for your iput.

Bud Cline 06-18-2011 02:37 PM

Someone will be along shortly with some real knowledge of these things I'm sure.:) Then we can both learn.

I finally went back to charcoal anyway.:)


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