Building new arch need advice/pics

[jasonl6]

Decided for this season to build a new arch. The size will be either 3'X10' or 3'X12', havn't ordered the pans yet but it will be raised flue.I am looking at doing an airtight arch with forced air. I was able to pick up a wood furnace door with blower on the front thats roughly 18"x18". The front will be made out of 1/4"x30"x36" plate steel with angle iron reenforcements.

This is where you guys come in. I am considering doing air over fire. I have done allot of searchs on this site and looked at allot of threads but havn't came up with what i really want yet. I am looking for some pics of retrofits and of air over fire arches to base my design on. I'm pretty proficient with metal working and fab so if you guys can tell me or show me i can design and build it. Looking specifically for pics of a force 5 setup. Also any blower cfm specs would be helpfull. I am not looking to build a 15K dollar rig or do I expect it to boil like one however I am only hoping to get the most bang for my buck with a new arch.

As always thanks in advance for the help/pics. :-)

Jason

[twofer]

I actually have a 2.5x10 Inferno ordered that I had them rip all the blower equipment out of. My intention is to incorporate my own air system with over and under fire air.

My plan is to use 2" schedule 40 pipe around the top of the combustion chamber with 3/8" pipe extending out flush to the bricks. For the under fire air I plan on just connecting a pipe to the ash chamber. In order to control the air entering the combustion chamber I am going to form a floor out of refractory cement with 3/8" holes in it.

ATM I'm planning on using this blower (http://www.grainger.com/Grainger/items/7D747) for the air.

I'm pretty following the UVM Improvement of Combustion Efficiency to the letter. You can find that here (http://www.uvm.edu/~pmrc/Combustion.pdf).

[jasonl6]

I read that artical and thats what got me excited about this.

I am going with 3" pipe (maybe i'll use retangular tube steel) and a blower of some sort. I know the artical says to look for a blower that will do 3" of static pressure.

I was thinking this blower http://www.harborfreight.com/13-gallon-industrial-portable-dust-collector-31810.html from harbor freight Has lots of cfm. :-) and is allot cheaper than graingers.

jason

[twofer]

The only problem I can see with that blower is if it cannot maintain much static pressure then the bottom is going to fall out of how many CFM's it produces. This is why they recommend a blower that can handle at least 3" of water column.

[highroadsyrup]

I just tore out all my brick work from my Hurricane arch today, it has air over the fire in front and rear and through the floor. I will try and post some pics in the next few days.