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Author Topic: Warped Heat Shield 070  (Read 1800 times)

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smokin soon

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Warped Heat Shield 070
« on: October 20, 2018, 10:22:40 PM »

Mine has been warped since the first year of cooking 8 years ago, but keeps getting more twisted. Replaced the controller with an Ortech a couple of years ago and have been very happy with it. Last few cooks monitored with Tappeque have shown some really high spikes after a few hours. Ortech Tech Support sent a new RTD, same results. Looking at the heat shield again, it's raised up 1 1/2 in. or more. Always read that this has no effect on temps, but after replacing it everything back to normal. Temps are + or - 15 degrees.  Could it be too much heat escaping on one side or another, I really don't know.
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Bentley

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Re: Warped Heat Shield 070
« Reply #1 on: October 21, 2018, 01:06:55 PM »

Could you weld some angel iron braces to the drip pan to straighten and see if that helped the stability of temps?
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Canadian John

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Re: Warped Heat Shield 070
« Reply #2 on: October 22, 2018, 09:29:19 AM »


 I bolted a 10 GA plate to my  drip tray several years back. It's still in use and flat as ever..I used 4, 1/4" stainless nuts and bolts for attachment...   Careful placement of the holes is in order as to assure no interference w/ the heat shield or anything else..... Mild steel, hot rolled sanded or ground clean is what I used... It also adds to the heatsink bank of the pit.
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smokin soon

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Re: Warped Heat Shield 070
« Reply #3 on: October 22, 2018, 11:00:27 AM »

I ran across a guy that had bought a heavy duty one and never used it. After several cooks monitoring with Tappeque, problem solved. Still don't understand it though.
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Bentley

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Re: Warped Heat Shield 070
« Reply #4 on: October 22, 2018, 12:37:42 PM »

Cool...
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Canadian John

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Re: Warped Heat Shield 070
« Reply #5 on: October 23, 2018, 10:32:18 AM »

I ran across a guy that had bought a heavy duty one and never used it. After several cooks monitoring with Tappeque, problem solved. Still don't understand it though.
A major warp could allow for a higher air flow in the area of the elevated section of the drip tray making for more concentrated heat in that area and upsetting the controllers function.. To replicate using a flat drip tray, prop up a corner and try it.
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