Quote Originally Posted by Jeff S View Post
Eric ,

I would like to see more of the details of your evaporator for example is your heating element directly exposed to the sap you are boiling. Have you considered insulating the sides at all ? Would like to hear your thought about shape of you evaporator, noticed its more narrow at bottom as opposed to just a rectangular box.
Jeff,
I'll have some more pictures after a cleanup. Version 3.0 will be in an insulated cradle and the drain valve will be bigger. The shape of the box was intended to make a complete drain possible without lifting the pan at all. It works really well. There is less than a tablespoon of liquid left in the pot. Without any real scientific research I thought that the triangular shape would allow heat transfer to the surface and create a bit of circulation in the sap. As it is, the heavy bits fall out of suspension and rest on the bottom beneath the heating element so there's no burning of nasties.