This device, the link of which you showed in the topic "Desalination Breakthroughs?" it definitely won't work well. You may be able to reheat
food, but you definitely won't cook anything. You might as well put a black pot in the cockpit and put
aluminum foil around it and start waiting, waiting, waiting


. I checked the opinions on
auction websites in my country - all negative, you can't cook with it even in the middle of summer.
Please note that this device I showed in my photos has vacuum
insulation. The vacuum insulates perfectly, so the
food does not cool down and high temperatures may arise. Additionally, a special layer inside the pipe absorbs sunlight very strongly, making the inside of the pipe very hot.
I had a 27-foot yacht. I sailed with my wife and daughter on the
Baltic Sea and the
Mediterranean Sea. You will definitely find a place for a GoSun device on your
boat.
I see that the
price of what you showed in the link is similar to the
price of the device I bought. They can still be purchased on a Chinese
auction site.
I'm writing partly using
Google translator, so I apologize for any
mistakes.