Thank you for the answers. I envy the options of your setup. Being less mechanically inclined, I am trying to simplify my design to match my skill set.
I'm contemplating using the Isotemp with the engine coolant loop and with the Isotemps 750 watt electric element through an inverter/solar/lithium battery bank.
Form the figures Hein gave me in another thread and my past experience in another rig, I'm confidant that the Isotemp will provide me with warm water 24 hours after I get to camp. Possibly longer if I provide additional insulation. I will have both the Isotemp and fresh water tank inside of my thermal envelope, which obviously helps. After that, again from Hein's figures
, it takes about 30 minutes of electric to bring the water in the Isotemp up to temperature, which equals about 31.25 ah.
Does that scenario sound reasonable ?
I believe the high temperature setting on the Isotemp is at 190 if I am reading the manual correctly. What happens when that kicks in ? I believe Hein has his Isotemp up in the engine compartment, which means a very short/efficient/hot coolant loop. I plan to install the Isotemp 3/4 of the way back towards the rear of the Westfalia, so maybe my coolant loop heat losses will prevent the high temp safety switch from triggering ?
I am not yet fully fluent in how the engine coolant loop is setup/functions.
Sorry for the hijack.