New fan for forced air forge

[JTknives]

On my way back to my house today i stoped at a thrift store just to see what thay had and i found a sweet fan for 2 bucks. it is all aluminum, and is 26v so being protable will be a easy just 2 small 12v batterys. this blows a lot of air and is quite quiet. i found the web site that sells it and it is
http://www.comairrotron.com/cgi-bin...ure_unit=inh2o&diameter_val=&diameter_unit=in
what CFM do i need and also what kind of pressure is needed. check the website i posted and let me know what you think. i would need to make a cone to taper the air flow into the burner. one more thing i was thinking is this. do i have to put the gas input after the fan or can i put the gas jet above the fan so it gets mixed thoroughly as it gets sucked through the fan? o i also got a huge thick auto cad book for free because i got the fan. score

 

[JTknives]

i was looking on the website about this fan and it has a speed control function. my fan is the therma pro-v and has 5 wires, 2 for power and 2 for speed control (can connect to a temp meter) and 1 that i dont know yet. but cool

 

[B Finnigan]

0000000000000

 

[JTknives]

thats whats cool, its brushless. it very cool where using it to cool the tv room right now as we speek. this fan sells for around $100. so being brushless would it work to suck the gas in to the fan.

 

[Stacy E. Apelt - Bladesmith]

The gas is the last thing injected before the mixing chamber or nozzle.
Stacy