I spend a lot of time in Morocco where it can get quite hot. Having been a lorry driver for ? years on European routes I know about keeping the cab cool.
I want something to keep the van cool at night without letting wee bitey things in.
Been looking at the Indel B SW. Now comes in 12 volt and plugs into a lighter socket. Not cheap at £1,800 but on a van costing as much as a California, not too much to spend to keep cool at night.
Not going to work on a ciggy socket it will melt in 10 seconds. This draws 36 amps at 12v so your leisure battery will be flat in just over an hour if you can wire it in. Realistically only two ways to power it either a mobile generator at 240v or from the mains in both cases via a transformer or really big battery charger. It does look viable and the packaging looks good.