Stoves, refrigerator and bathroom give you autonomy, the hood is useful, the oven ... it's up to you.
I start with the stove , usually there are three or two burners on the stove . Your proclivity for stir-frying makes a difference, of course, but I don't think this is one of the most important considerations when choosing a campervan. Three pots on the fire at the same time are unlikely to fit, and you probably need two.
The presence of a hood helps eliminate steam and odors , especially during the winter months when keeping the kitchen window wide open will allow too much cold to come in and affect the cooking and temperature of the food . The header is useful if you have it , but you can go without it. A ventilated skylight (I'll talk about this later) does a very good job of absorbing steam and odors from the kitchen, and is also useful for internal recirculation and ventilation compared to a hood.
Sometimes there is also a gas oven , usually on top of the refrigerator, but remember that you can often replace it with specialty pans. Some good ideas on how to furnish your caravan's kitchen (including some ideas for the oven) can be found here .
The refrigerator is absolutely necessary and gives you autonomy. There are two "category" refrigerators: trivalent ones (they run on gas, 12 volts or 220 volts) and those with a compressor (always 12 volts). The major difference is that the trivalent ones (the vast majority of those fitted to campers) can create a temperature difference of about 30 degrees between the inside and outside temperature, so they are "less cold" than those with fully cold compressors. just like those housewives. Where is the catch ? Compressor ones, they "always" consume current even if they are "connected and disconnected" just like the ones at home, so you only need to turn them on "only when needed" (you'll never have any problems when connected to the 220 volt mains ) . works and therefore never runs out of battery . But of course the beer is colder at 2:00 pm at sea in midsummer than those with a compressor. I've always had trivalent refrigerators.
... and the bathroom. Having your own bathroom at all times is not only a matter of autonomy, but also of hygiene and cleanliness. Sometimes it's just "having a private bathroom in reserve" that provides the camper's balance rather than other solutions. When choosing your camper, consider that there are two types of toilets: cassette toilets and marine toilets . The first has a removable 18 liter tank that you can easily empty into the appropriate facilities, the second has a larger fixed sewage collection tank, 50-70 liters, but to empty it you have to move the caravan and go to the caravan service. . The difference lies in the ease of emptying the cistern at the expense of its autonomy. If you want to know more about the subjectI suggest you read the article how the caravan toilet works .
There are bathrooms that are integrated with a shower tray , practically floor-standing, or there are bathrooms with separate showers . The difference is obvious, it's more comfortable to have a separate shower and you can also use it to put a drying rack ( vertical ones are best for me)) or wet jackets. If you have children on the plane, it is easier to wash them. But it is also inevitable that caravans with separate showers will not hold the best compactness records. "Dynamic" solutions, ie bathrooms with revolving walls that turn into showers when needed, are making progress. It's like having a virtual separate shower. The solution seems interesting to me, especially in that it includes the length of the vehicle (in some vans it's a Columbus egg), but beware of the fact: It shouldn't be precarious and light, otherwise it'll be just one more thing. Frangible.