JLeadbetter
New member
Greeting All,
I recently built a standard 55 Gallon UDS and have a question about using my 25 CFM Stoker fan. I bought the 25 CFM fan for my big pit...it's my whole hog cooker.
I tried the 25 CFM fan just to see what would happen. It worked to an extent. Over a 250 degree, 3 hour cook, the fan kicked on 3-4 times. However, as the fan kicked on it would drop the UDS temp 30 to 40 degrees and take 30 minutes to come back up to temp. Then when the fan kicked off the temp would spike 50 degrees. I understood what is happening, so off I went to figure out how to fix it without buying a new fan. The smoked wings weren't to bad either.
So I did some testing on ways to reduce the air flow to that of a 5 or 10 CFM fan. What I landed on was stuffing some course steel wool into the the silicone insulator tube. That reduced the time to fill a large black trash bag from 20 seconds to over 3 minutes. I thought it was a bit extreme but hey I was testing. To my disbelief it acted in almost the exact same way. So now I'm a little stumped.
How for the questions. How do WSM's act with a 5 or 10 CFM fan connected? Do they exhibit similar traits? Anybody know how to calculate CFM? Is there something I need to do to the Stoker or a setting in StokerLog? Any ideas, suggestions or personal experience? Aside from buying a new 5 or 10 that is...that is the last resort
Thanks,
Jason
I recently built a standard 55 Gallon UDS and have a question about using my 25 CFM Stoker fan. I bought the 25 CFM fan for my big pit...it's my whole hog cooker.
I tried the 25 CFM fan just to see what would happen. It worked to an extent. Over a 250 degree, 3 hour cook, the fan kicked on 3-4 times. However, as the fan kicked on it would drop the UDS temp 30 to 40 degrees and take 30 minutes to come back up to temp. Then when the fan kicked off the temp would spike 50 degrees. I understood what is happening, so off I went to figure out how to fix it without buying a new fan. The smoked wings weren't to bad either.
So I did some testing on ways to reduce the air flow to that of a 5 or 10 CFM fan. What I landed on was stuffing some course steel wool into the the silicone insulator tube. That reduced the time to fill a large black trash bag from 20 seconds to over 3 minutes. I thought it was a bit extreme but hey I was testing. To my disbelief it acted in almost the exact same way. So now I'm a little stumped.
How for the questions. How do WSM's act with a 5 or 10 CFM fan connected? Do they exhibit similar traits? Anybody know how to calculate CFM? Is there something I need to do to the Stoker or a setting in StokerLog? Any ideas, suggestions or personal experience? Aside from buying a new 5 or 10 that is...that is the last resort
![stoker.jpg](http://www.porkapalooza.com/stoker.jpg)
Thanks,
Jason