Mines 5kw, it blows hot air out but it's a bit noisy on full chat but you can turn it down, it'll be more than enough when the van is closed for the night, i've not slept in it but would want fresh air ventilating around the van at night anyway, plus go for a dump and open the van to get out and I bet the hot air escaping would be like back draft
So, more power turned down should give longer life and less noise I guess.
I fitted the in tank straw too, not seen any noticeable fuel drop. I'm not in the van long anyway so I'll probably only use the heater in a blue moon.
I don't think there will be that much difference in quality imo It's not 2010
Bloody Angela Mercle
56 350 2.2 130ps mk7 with 2 side doors
65 290 2.2 125ps custom with 2 side doors
07 350 170ps
Ids v86 licence + v86.04 update + xprog
hereIds map
here