Tracy, I would recommend contacting a New England sugar house and see if they may be able to give advice. We have a bunch around here.
As I understand it, it takes an enormous amount of sap to make a gallon of syrup, and a very long cooking time to reduce it in those huge vat thingies. They use hardwood to fire them around here. Something like 50 gallons sap for 1 gallon of syrup.
Good luck with this, though! It sounds fun.
Dane