Ok, I have to give my 2cents worth.
If you plan on boating in cold and damp conditions the Wallas is your best choice. It draws air from the cabin for combustion and vents it overboard; it really keeps the moisture under control.
We cook on our stove all the time and find it quit capable, although small, you get use to it.
We use diesel out of the pump.
At night if the fan (which draws vary little volts by the way) noise bothers you open the lid and us an EcoFan on the cook top; on cold nights I’ll take the noise because the EcoFan doesn't cut the mustard.
As for keeping worm in the V-birth, bundle up.
We did however have some problems with our stove early on do to the fact that the boat was trailered over 10k miles in its first year and developed a couple of loose connection, but it has worked flawlessly all summer.
If I had to do it over again the Wallas would be the only choice even with its miscellaneous idiosyncrasies, it’s the best choice for a CD in my opinion.
Check it out
http://www.scanmarineusa.com/wallas_stoves.html
Great service and lots of free advice and help if you run into problems.