Surprising Toast Test Heat Map

Scottes

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Location
Boston
Grill
Smokefire ELX4
After 6 weeks of owning it, I finally got around to doing a toast test to get an idea of my ELX4's heat map. I was kind of surprised at the result.
400F_Toast_Test_Heat_Map_sm.jpg


The grill was set at 400F and allowed to come up to temp.
Tossed on the slices, waited until I noticed the bottom right (added last) was burning, then flipped them in the order I put them on.

1) Should I even be concerned? (Well, now I know where to put steaks on for searing, and info reduces concern...)
2) Is there any way to improve this?
3) Anyone have any shots of their toast tests?

This made me quite concerned about low & slow and food placement and the need to move food around.
And then, thinking about low & slow, I realized that I probably should have done 250F, and I will do so when I get more bread.
Two loaves, so I can test the upper rack.
I guess I should also move the probe around, checking the corners at least.

As a note, for another test I put an ambient probe as close to the Weber probe as I could.
The ambient probe temp did fluctuate - down to 223F, up to 257F - but I was pleased with the overall chart, as it averaged well. No complaints there.
Except that the Web probe read 250F at all times. Lies, damn lies. :)

Moving the probe to the upper rack, center of grill, was also good.
The temp swing was in the other direction - up to 277F, down to 242F - but a bit more steady over time, and fine.
 
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I believe most will agree that the right side is noticeably hotter. I haven't done such a test, but surprised it is that much different. I have an ex4 and the difference doesn't affect my cooking. I actually like it. I know where to place the cook for the desired response. If I cook 2 steaks and the one for my wife isn't as thick, it goes on the left. Searing is done on the right. At lower temps, I don't think it affects thing too much. But I will set the larger end of the ribs, brisket, or shoulder towards the right side.
 
There's a part of me that wants to attempt to tweak the airflow...
Get a piece of sheet metal and make a barrier to reduce airflow to the lower right side...
And another to divert more airflow to the upper left...

I will have to take a look at the guts the next time I clean it.
I mean, there's not much there... So why the odd pattern? Is the fan tilted or something?
 
So, I wonder if the direction the fan rotates has anything to do with it. I know that those type fans will create a small bit of a 'swirl' in the airflow. But then, unless Weber uses fans that rotate either CW or CCW (or if installed incorrectly), it certainly doesn't explain why this review showed a bias to the front left. That said I, like most, have learned the 'zones' in my EX4; and use that knowledge to achieve our desired results.
Overall, I thought the review was fair (but then ... we are a tad biased ... right?).
 
That looks correct.
The SF has always had a well documented hotter right side.
 
So, I wonder if the direction the fan rotates has anything to do with it. I know that those type fans will create a small bit of a 'swirl' in the airflow. But then, unless Weber uses fans that rotate either CW or CCW (or if installed incorrectly), it certainly doesn't explain why this review showed a bias to the front left. That said I, like most, have learned the 'zones' in my EX4; and use that knowledge to achieve our desired results.
Overall, I thought the review was fair (but then ... we are a tad biased ... right?).
I also think it’s the fan. You can feel it with your hand if you start the grill with nothing in it, i.e. no baffle and no diffuser.

Whenever I need to replace my EX4, I will not buy a new SF until they change the fan. They could vastly reduce its noise and improve on air flow by using a larger fan (i.e. same air displacement with fewer rotation). The evenness of the flow is a matter of tweaking the curvature and profile of the fan blades. They could also add an honeycomb-shaped mesh to even the flow, but that would increase the resistance, which means more noise and reduced the flow. All of this already exists.
 
I also think it’s the fan. You can feel it with your hand if you start the grill with nothing in it, i.e. no baffle and no diffuser.

Whenever I need to replace my EX4, I will not buy a new SF until they change the fan. They could vastly reduce its noise and improve on air flow by using a larger fan (i.e. same air displacement with fewer rotation). The evenness of the flow is a matter of tweaking the curvature and profile of the fan blades. They could also add an honeycomb-shaped mesh to even the flow, but that would increase the resistance, which means more noise and reduced the flow. All of this already exists.
Some people have replaced the fan.
 
Replaced with a different fan that changes the airflow?
 
Yep.
Who cares?
If That’s an issue for you you can get a couple wet kits from Weber to mitigate the issue. It’s very useful in grilling but I’ve never had any issue doing low and slow cooks personally.

It is good to know your cooker though. Use to your benefit.
 
Yep.
Who cares?
If That’s an issue for you you can get a couple wet kits from Weber to mitigate the issue. It’s very useful in grilling but I’ve never had any issue doing low and slow cooks personally.

It is good to know your cooker though. Use to your benefit.
Not sure what 'issue' you are referring to that the 'kits' mitigate.

Goneincognito also references replacement fan options.

I'm not interested in changing out anything, but I am curious about where we can get those 'kits' and parts should the need ever arise.
 
Not sure what 'issue' you are referring to that the 'kits' mitigate.

Goneincognito also references replacement fan options.

I'm not interested in changing out anything, but I am curious about where we can get those 'kits' and parts should the need ever arise.
Weber dot com. Place them over the hot spot if it’s a concern. Can do the same with some shallow foil pans and water on top of the flavorizor bars. 👍🏻
 

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