I built a reflow oven using a ControLeo2 a few months ago, and I used a larger Farberware convection oven I got from Walmart for $40.
It seems to work well so far, but I still need to capture the data from it on a run and see how it compares to the ideal profile. It seems to be a bit slow to me, but the ControLeo2 isn't complaining. It does seem like it's not that easy to find ovens which are both on the small side and come with a convection fan, which to me was essential. I reflow a lot of boards at once and I need uniform heating throughout the oven, and this oven does that.
One roll of Reflect-a-Gold was not enough. I used one sheet of Thermo-Tec heat barrier, cut in half, for the top and bottom. This was the perfect size for this oven, and the top part hasn't had any trouble with the adhesive. However, despite only needing to cover the back, sides, and door, I needed a second roll of the Reflect-A-Gold.
My next two projects are to capture the data from a run, and to add a servo to open the door. I've got the servo now, I just need to find a pushrod and figure out how to hook it up.
