I had an Engle on my previous boat; can't
recall which size, maybe 35 quarts, but it was large and cost around $600. It was a great machine. We also had a frig, so I used the Engle for a
freezer. Kept ice cream solid in the
Chesapeake Bay all summer.
It went bad on me after six years, so I called the company's tech support. They walked me through a troubleshooting process that identified the evaporator as the culprit. The technician had me order it, and when it arrived I called him and he talked me through installing it. Worked fine. I was really impressed with the company at that point.
It would run on 12V or 110V, so I could connect it to the 110V outlet in the
bed of my pickup when
provisioning the boat in the spring or emptying things out in the fall. Otherwise it stayed on the boat, as it was really too large to carry up and down the
companionway.
A great product with excellent tech support.