home garage compressor: how many CFMs?

[Eric]

>
>
>   Scroll compressors are supposed to be the best thing since sliced
> bread, but it seems they're simply not made in small sizes.  I can't
> understand why- startup power requirements are lower, they're
> completely vibration-free, and almost dead silent.  They could market
> it as "The MarriageSaver"...


I bought a scroll compressor for my work.  Our building used to be a
textile mill and has two 50 hp piston compressors from Ingersol Rand.
 We did not need that kind of airflow or electric bill.  The unit I got
is a Kaser (sp?)  and puts out 21 cfm with only 5 hp (80 gallon tank).
 It is very quiet and has a nice aftercooler, but with a dryer it cost
$5500.   It is plumbed into the existing 200 gallon tank and 3"
manifolds and it works great.  It supports 3" lines running all over our
50,000 sq-ft building.  The unit is actually about the same size (with
dryer) as my 60 gallon single stage upright I have at home.

I think the big problem with a consumer version is how much most
consumers use their compressors.  The major benefit of a scroll
compressor is reliability.  Since most people only use their compressors
to air up tires or occational air tool work they are over kill.  I would
still love to see them more affordable.

My "MarriageSaver" solution is going to be moving the compressor to a
shed in the back yard and running lines back underground.  The one
technical hurtle that remains is how to keep the water from collecting
in the cool underground lines.

-Eric