REALLY new to this
A little late on the coversation here, BUT, I have a 40'' boat and still no room to store a "single use appliance" such a coffee pot especailly an electric coffee pot. Any appliance or equipment item that generates heat consumes great amounts of stored battery power and will quickly consume your available DC power that you have on a 22 ft boat. Consider this: Acquire a small round wire strainer ( approx. 2 cup size available at the groc. store)such as something you may use to drain pasta, veggies, etc. (multiple use tool)... place a Mr. Coffee (for example) filter inside the strainer, place coffee grounds in filter, pour hot water over grounds and there you have drip coffee. Make a thermos full or cup full whichever you desire. This is the only "coffee maker" used on my boat, it works great.