I originally purchased an old 55 gallon barrell style evaporator with a 2x3 pan from Woodbury Sugar Shed in Woodbury, CT. Very nice people and extremely helpful in the early years. The barrell has sinced been retired and I had a friend make a better arch for me out of stainless steel that is all firebricked, but I still use the same pan. You can buy one from Leader Evaporator or if you know of anyone that has the ability to work with stainless steel you can have one made for a lot less money. If you go that route you welcome to come up and take measurements off of mine. I have also made a steam hood that sits on top of the pan which allows me to boil in all kinds of weather (rain, snow, wind, etc). I get about 7 gallons per hour evaporation rate with it and about 4 without. I do not have a sugar house or even a shed so I make it right out in the open.