Force draft and induce draft fans

Interesting idea using a heat exchanger. I'd like to see that done.

For my longer, controlled burns I use the PID loop based blower and meat/grate/dome probes  in my CyberQ wifi    or the other popular brand  flame boss 200.    Another big name I this is  stoker

First, congradulatuons on the new egg and welcome aboard. 

stichrunner said:

 Has any body tried building a balanced draft system for there eggs. This would consist of a forced draft fan and a small little heat exchanger and induce draft fan and a new exhaust stack. 

While this is an intriguing idea, it would kind of defeat the concept of a kamado style cooker. They are designed to run a tad on the positive side with natural aspiration. There are many reasons to use forced and induced draft in the boiler and fired heater arena. Increasing heat transfer and improved combustion come right to mind. However in a cooking environment their use is very limited. 
Probably the most common use for forced draft on smokers is when running an extremely long cook chamber. Under this condition it's much easier to raise flue pressure above atmospheric pressure by application of a forced draft. The purpose of this is to negate hot and cold spots. Also to try and insure even flow across the length of a excessively long cooking chamber. On that note, induced draft is used for this very reason way more on smokers than is forced draft. It's usually controlled by stack/chimney height. 
As far as induced draft, most folks in need of induced draft simply increase the height and/or diameter of the stack. Increasing the height is the usual method as a longer narrower exhaust is easier to tune than a shorter and wider exhaust. This is considerably cheaper and more practical than installing and up keeping some sort of ID fan. Especially on stationary pits that do not get moved around. 
The limited size of the egg would cause nightmares trying to run both forced and induced draft at the same time. The extremely small volume of the cook chamber simply does not contain the necessary air volume or dead air space to warrant either.
Im not bashing your idea, quite the contrary. I actually enjoy tinkering with  and modifying smokers. However I feel by trying to incorporate forced and induced draft to the egg it would turn it into an eye sore that was cumbersome and took up a lot of space. In my opinion the egg is simply to small and does not contain the necessary dead air space volume to warrant a true continuous forced and/or assisted induced draft. However if you decide to do it, I would love to see it my friend. 
For clarification, I'm not talking about Gurus, Stokers, Aubers , etc etc that cycle on and off and function mainly as a thermostat for lack of a better word. I'm talking strictly about fan assisted, constant forced and/or induced draft where the goal is to manipulate draft by either raising or lowering flue pressure above or below atmospheric pressure.