Hmmmm.
What exactly do you need?

Here's my recipe for a "prepetual motion goodness extractor" that you can make from stuff laying around the house (my house, anyway . .). It's cheap to make, relatively safe to operate, and EXTREMELY EFFICIENT! This unit uses 4-8oz of butane, and has a max donor capacity of 100g.

PARTS:

10" metal 2" pipe threaded both ends (1)
Pipe caps (2)
3/8 Hose barbs threaded 1/8NPT (3)
3/8 Hose barbs threaded 1/4NPT
3/8 copper tubing (25 - 30')
3/8 re-enforced clear hose (10')
3/8 copper elbow (1)
hose clamps (10)
Pint wide mouth Ball Mason jar with cap and ring (1)
plastic bucket (you know the kind) (1)
Good teflon tape (big roll)
wire ties
pipe blanket (insulation) (10')

Put it all together:

CONDENSOR:

Wrap about 16' of the copper tubing around a gallon milk jug so that the tubing follows the shape of the jug and is as close to the jug as you can get it and still pull the jug through the coil. You'll get about 7 wraps around the jug. Leave about 6" of straightened tubing at one end for the low point, but leave the other end (top end) long.

Size the coil to the height of the bucket. Make sure the coils provide a constant downward spiral (no high points in the loops). When you are sure the coil will flow a liquid, it is ready to insert into the bucket.

I set my coil in a frame to ensure the spacing and down-angle. I made the frame by marking braze rod every half inch, and starting at the 2-inch mark, I soldered each corner of each loop at half-inch intervals. This ensured a pitch of 0.5" per side, or 2" per loop -- plenty to flow a liquid.

Cut a hole in the side of the bucket about an inch from the bottom of the INSIDE of the bucket. Don't measure the inch from the outside. It will be wrong. Make the hole just big enough to pass the bottom end of the tubing through. I start with a tiny hole and open it with the rat tail of a file for a perfect fit.

Carefully install the coil in the bucket, bending the bottom bit as needed to pass it through the hole.

Drill small holes in the appropriate places around the rim of the bucket and use wire ties to secure the coil in place. At this point you should have a bucket with a short spout sticking out the bottom. The top wrap of coil should exit the top, and the extra several feet of tubing should be parallel to the bucket.

Solder a 6" bit of tubing to the 3/8 elbow and solder the 3/8 elbow to the lower end of the coil.

Use Marine Goop (or other good adhesive/sealer) to seal up the hole you made in the bucket. Set it all aside to dry. Move on to "evaporator."