We think that insulating your van’s floor is worth the minimal extra cost it adds to your build. The best floor insulation is ½” XPS foam board due to its high r-value per inch and its compressive strength. But a layer of Reflectix will add some insulation while taking away less headspace. We used Reflectix, but if we did it again we’d go with the foam board.
The refrigeration setup in your van is an area where you really do get what you pay for, whether you’re paying in money or in time. The best options are the most expensive. The cheapest options are a pain and/or don’t work very well. And if you try to save money with a DIY refrigerator setup, you could end up spending a lot of time on installation.
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