Thad- I dont know anything about the nozzle size or any of that. Ive been so busy in the woods the evaperator has been mostly back burnered. Jerry is going to fire it up in another week and make sure everything is Ok for me. It has two 801 carlin burners I think and they said each one will use 12 gallons per hour or 24 gallons per hour total. Im fine with that considering what it will probly do. The thunderbolt arch is supposed to be pretty high performance from what everyone is telling me. Marty- My averages are nothing special but Im proud of them. I think all things considered we do real well for where we live. I kind of wish I could sugar up your guy's way for the freezes but Ive got to say I wouldnt want to deal with the snow. I usually do most of my sugaring with no snow. I run my mainlines knee level. Mom is a great girl to put up with my crap. Couple more weeks and Im tapping in then all Im going to do is walk woods and tweek till it starts runnin. CANT WAIT FOR MY BIGSAPP!!!!!