WSM not running hot enough

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boblloyd91

Fire Starter
Original poster
May 22, 2016
36
10
Lynndyl, UT
So I used my WSM for the first Time this past weekend. I had some issues with temperature control, first went really hot then quickly cool down when I put a bowl of cold water in the cooker. I was cooking in colder weather ( about 30°) and am wondering if that combined with cold water in the bowl made it harder to keep the temperature up. I was worried because I hear that new Weeber smoky mountains run hot. I think this was The case at first, but should have let it run without water as it was so cold. Besides the cold water in the steaming bowl, what else could've made my smoker not go hot enough? The vents were all open by the way.
 
The cold weather will have had an effect on the cooking temperature due to greater heat loss through the sides. Especially in cold weather it is important to make sure that the smoker is out of any wind or breeze or this will exacerbate the problem further.

Cold water will also have added to the problem as it will need more heat to raise it which will not be available to warm the cooking chamber. If you are using a water bath then it would be better in cold weather to fill it with hot water. Alternatively half fill it with sand or remove it altogether. Personally I would use sand under these conditions or remove it completely if it was still too cold.

What were you using for fuel? The best fuel in cold weather is good quality hard briquettes as these burn hotter for longer than charcoal or wood.

If all of the above fail you may need to consider some thermal insulation around the WSM - but usually making sure the WSM is sheltered, and using a hot burning fuel will be sufficient.

Running hot is not usually a problem as, unless you have major seal leaks, you can usually restrict the air flow sufficiently using the top and bottom vents.
 
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The cold weather will have had an effect on the cooking temperature due to greater heat loss through the sides. Especially in cold weather it is important to make sure that the smoker is out of any wind or breeze or this will exacerbate the problem further.

Cold water will also have added to the problem as it will need more heat to raise it which will not be available to warm the cooking chamber. If you are using a water bath then it would be better in cold weather to fill it with hot water. Alternatively half fill it with sand or remove it altogether. Personally I would use sand under these conditions or remove it completely if it was still too cold.

What were you using for fuel? The best fuel in cold weather is good quality hard briquettes as these burn hotter for longer than charcoal or wood.

If all of the above fail you may need to consider some thermal insulation around the WSM - but usually making sure the WSM is sheltered, and using a hot burning fuel will be sufficient.

Running hot is not usually a problem as, unless you have major seal leaks, you can usually restrict the air flow sufficiently using the top and bottom vents.

I was using cheap store brand charcoal, which I suspect doesn't stay hot as long. Also when you use sand is there any kind in particular you use? Also if I forego the water bowl altogether do I risk burning my food at all?
 
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The charcoal was probably the main problem. I suggest that you buy some good quality briquettes for your next smoke and use hot water in the water bowl. The water is not really there to add moisture to the cooking chamber but to act as a heat buffer between the coals and the meat to smooth out any heart spikes.

The best sand to use is either the washed kiln dried sand (for use between paving bricks) or play pit sand (used for children's sand pits) as these are pre-washed/cleaned and do not have any musty smells.

When using an even burning fuel like briquettes and you do not keep lifting off the lid off the smoker or opening the door then you will be fine removing the water bowl completely. The main problems can occur when you are using a variable burn fuel (like natural wood) where the temperature can spike and trough as the door is opened to add the new wood and then the additional heat produced when its catches. 

Briquettes and lumpwood or pellets used in my Pro-Q (WSM clone).

 
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When using your WSM in cold weather I would use lump charcoal & leave the water pan dry.

You can put foil in it & use it as a drip pan.

If you are using the minnion method you will need to start with at least 1/2 chimney of lit charcoal.

Keep the bottom vents open all the way until you approach your target temp, then start closing them down.

You may also want to add a split of wood occasionally to keep the temp up.

Al
 
What temp were you trying to hit?

What kind of probe were you using in the CC?

Richie
 
I was trying to hit 225. I was using a basic kitchen meat probe through the thermometer insert, and the temperature was in the 700's for some reason at first. The accuracy of the temperature is something else I'm trying to figure out.
 
Get a maverick,or Polder what you spend you will save in meat

Richie
 
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I use KBB most times I tried Royal Oak Charcoal once it was very good,I haven't seen it since 

Richie
 
It takes awhile to heat up cold water, I don't use water in the WSM it enables me to cook at the temperatures I want which is 275-350 and use less fuel doing it, replaced the water bowl with a clay saucer for a diffuser, sometimes I remove it cooking on the top grate directly over the coals or use the Weber Hanging Kit to directly over the coals. 

The Hanging Kit is awesome, can easily cook 6 racks in an 18.5


Best way to smoke Chicken imo.

 
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It takes awhile to heat up cold water, I don't use water in the WSM it enables me to cook at the temperatures I want which is 275-350 and use less fuel doing it, replaced the water bowl with a clay saucer for a diffuser, sometimes I remove it cooking on the top grate directly over the coals or use the Weber Hanging Kit to directly over the coals. 

The Hanging Kit is awesome, can easily cook 6 racks in an 18.5
Nice!  I just ordered the kit from Target (seems to be one of the few places that still has it in stock on the web).  What are you using for hooks?
 
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