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Please contact me privately to discuss removal of the alligator clip. Forum rules prevent me from answering directly. Click on my profile if you wish to contact me.

The air hose is custom made by a company that makes respirators for emergency personnel. They wash the hoses in a “pleasant smelling” mint wash to keep the initial users of the respirators from bumming out too much. In a cook or two it smells wonderful!

Jason, did you put this to bed? If not, I’d use a full port ball valve to restrict the flow from the 25 CFM fan. You will be able to turn it down as much as you like. You can get CFM estimates by blowing into a deflated bag of known volume and timing its filling. I'd shoot for approximately...

BMerrill knows of what he speaks. I have designed and built a pellet cooker from scratch. Additionally, I have designed and am now marketing a low-end temperature controller for charcoal pits. I am intimately familiar with both challenges. The Trager algorithms were developed and tested...

I'll just reply then move to a new thread. The Analog part's a good choice, especially if you already have it. Otherwise, look at the MAX6675. Super simple, digital SPI output, and about the same $$.

Curt - Have you chosen a temperature sensor yet?

I have a great deal of experience designing electronic controls for industrial equipment, but more significantly, designing automatic temperature controls for pellet grills and charcoal cookers. There’s a great deal of discussion on using Arudinos and clones and one can make a sophisticated...