the webasto is a 3803 airheater.
runs on diesel and no thermostat.
it is 24v so i have 2 batteries i charge all the time.
on full loaded batteries it runs 4 hours.
the test run went good today, i can take 10 people. all in the sleigh.
but i think i can not drive in powdersnow, so i stay on the hard and flat tracks.
i drive 8 km per hour and use only 1st and 2nd gear.
but im afraid for overheating, in warmer weather, because the motor has to work hard.
now it went ok, the trip was short and we had a break in the middle.
i going to make a road for this sightseeingtrip from about 8 km so max 1 hr driving per go.
the steamy windows is ofcourse the problem, so i try the air vents like kirk said.
most of my friend thinks also that it is the best place.
the air intake, i still dont know...
if i take from outside, the air is cold but dry.
if i take from inside, the air is warmer so the sleigh gets warmer sooner but air is wet, because of the snow inside.
but if i take the air from inside i circulate the air better, but maybe the passagers run out of oxigen.....