Quick video showing the evaporator and reverse osmosis rig that I built to make maple syrup. Once dialed in I can let this go all day. I keep a camera on it so I can check on it once and a while.
Yep, natural gas. Yes, I just need to run some sap through the RO, so I have some ready when I fire up the evaporator, then I just adjust the valves on the preheater and the RO. I check them pretty frequently for the first hour and then just let it go the rest of the day. I do have a camera on it so I can check in to make sure nothing gets out of whack.