I built one using an Arduino and some heating elements. The kind you put in a teapot or coffee mug. All the precision parts
are up top and not in the water. The temperature probe is thermoelectric and has no moving parts
. The pump is the part I'm worried about, but as I said Thomas Keller puts his directly into butter.
I would think vinegar washes would clean deposits just like in a head
. I live on a lake right now so I can't try it to see. I'm getting another one that is smaller and uses even less electricity from a kick starter. It's about the size of an immersion blender and it was pretty cheap
I like the one you posted, but I didn't see a clear picture of it. It looks big and if it's connected to the engine
it sounds like it's built in.
I did get an induction cooking
plate, but my Cuisinart nesting pots don't work with it so I had to get an interface disk which lowers the efficiency.
With LiFePO batteries getting cheaper and charging
getting better it would be nice to ditch propane
completely. Just some bottles for the grill
maybe. It's the one system I hate dealing with. Baking would remain the biggest loss though. I highly doubt I could bake bread sous vide, but I learned you can bake a cake in a slow cooker, so who knows what else can be done..