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Homegrown temp controller
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tsawyer148 Offline
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Homegrown temp controller
Awhile back I was looking through some websites and found the thread on the Virtual Weber Bullet forums about a homemade version of a temperature control circuit. I looked it over and figured I had several of the parts already here at the house and what I didn't have was a quick jaunt to Radio Shack away. I have a Maverick ET-73 and ordered 2 extra smoker probes awhile back so I am using all 3 of them to get an idea of what's going on, two of the probes feed the Maverick and the other feeds the control circuit. Power is supplied from a simple 12v power supply from another project I did and it is set up so if need be I can run it off of a car battery. The fans are dirt cheap, (around $10.00 plus shipping), and are rated at 28 cfm at 12 volts which gives plenty of volume.

I finally got a VERY rough version done and I gotta tell ya, it works much better than I thought it would. The system was easy to tune and I don't think I got more than a 10 degree drift all night, average was around 5 degrees or less. I still need to really "polish the turd" and clean up the wires and such and one of the guys I work with is going to fabricate a different duct for the fan. The one that shows in the picture is just a close vent for a clothes dryer that I bashed to fit over the holes in the firebox door and mounted the fan with sealing tape and a few small screws to the duct.

Nice thing was I didn't have to do alot of babysitting, just put some wood on, make sure the fan came on and go back inside.

Anyway, just wanted to share.

DUDE!! Was that you???

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12-30-2010 05:15 PM
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sampson Offline
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Post: #2
Re: Homegrown temp controller
Nice job! The only thing I ever did "homegrown" was this mood controller back in the seventies :shock:

Rockin' on two 22.5 WSM's, a GOSM gasser and missing them old drums...
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12-31-2010 03:03 PM
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tsawyer148 Offline
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Re: Homegrown temp controller
LOL, yeah for me it was considered an attitute emulsifier..

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12-31-2010 03:22 PM
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Gene Offline
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Re: Homegrown temp controller
Gee, that's just what happens with my Traegers, set it for the temp, put in the product what 'ere it may be, from asparagus to zuchinni and every cookable item in between, then go back inside.
Happy New Year all. It's 0723 here in Okinawa NYD.

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12-31-2010 04:23 PM
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tsawyer148 Offline
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Re: Homegrown temp controller
Kinda why I hesitated to post this, figured the Traeger thing would come into play..LOL. Besides, I don't HAVE to use AC power, a car battery or just remove the fan and it still works..

DUDE!! Was that you???

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12-31-2010 06:29 PM
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PackerBacker Offline
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Post: #6
Re: Homegrown temp controller
tsawyer148 Wrote:Kinda why I hesitated to post this, figured the Traeger thing would come into play..LOL. Besides, I don't HAVE to use AC power, a car battery or just remove the fan and it still works..
BINGO! Gotta love the WSM's No tool kit required Tongue

Dave

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01-01-2011 10:21 AM
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