Our stainless side by side with water in the door has worked extremely well since 2008. The fires referred to are another mfgr product. Set the switch for automatic and it goes to propane when shoreline or generator is off. Twelve volt would be a bit costly and really not necessary. The ice makers can be a bit finiky but still worth the occasional hassle. The residential refers have more room inside so when ours dies it will be replaced by one. Full timing can cause the door to be opened a lot and these do not cool quickly. For major drink supplies we have a Dometic 12/110 volt ice chest in the storage compartment on a slide out. It is extremely efficient and fast. It can be used as a freezer as well.
