A fridge or freezer on a small boat used to be both a big issue and a big deal, this is less so now they make the dome or motor side of the compressor that much smaller.
This one is made by Waeco and was installed in just a few hours about ten years back. As you can see its fitted in a nice dry place and is also well ventilated. Most of the year it runs 24/7 and powered via the boats batteries which are charged by just one 60 watt solar panel, recomended!