Hi Rodger I think it's just a fan so will blow fresh air ,pity you carnt run a pipe from the icebox .
Kind regards Keith

I've just checked the handbook, and the tadpole is labelled "Manual control, e.g. Ventilation". The "A", on the other hand, says "Automatic, e.g. Heating". So it looks as if blowing cool air around is approved. Which is a good job, because we also have the tadpole switch and that's what we do. I think it just draws air from beneath the floor and pushes it around, so no major chilling effect, but at least it sets up a bit of a breeze.

PS I suspect your "A" setting is quieter because, being automatic, it doesn't see the need to warm you up right now.

Try pulling the warm air out of the downwind vent with a fan or fans

Quote: Aaron Calder wrote in post #8

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Why not just buy a cheap 230v oscillating fan and use that inside the van?

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Hi guys the door vent fans sounds good ,air should be cooler lower. Down .

Fans are fine but I'm a a/c engineer And there is no substitute for proper a/c, fans just to move the hot air around. So if you can get some proper refrigeration you'll notice a difference straight away. It's a bit like car air conditioning why would you ever buy a car without air-conditioning. I'm not even being snobby it's just once you've had a car with air-conditioning You wouldn't want one without.
Clive
Sorry if this sounds a bit strange I've had a bottle of wine

I've banned him from bringing a fan - we are trying to travel lighter each time and they always seem to be the piece of kit that just won't pack away neatly! I like the idea of a small fan in the roof vent, though.

This is a very topical and interesting thread and l would like to add my views.

I am sure Clive is absolutely right in what he says about a.cs verses fans however there are down sides to a.cs. The first is the cost and they are an item that can be trouble some especially if only occasionally used.I have on many occasions when staying hot climates woken in the middle of the night freezing as the air con has been left on. Also like central heating running full blast it can have and adverse effect on how you feel as it can give a very dry environment.

At home we use a 12 inch desk fan (usually) placed in front of an open window to circulate the air when temperatures soar. We use the same fan in our Triton sat on top of the fridge, it is running 24/7 at the moment. Every night we start of on top of the quilt but usually wake in the morning to find we have crawled under during the night and we are currently in the Algarve. Cold or movement of air? I personally think that good air movement is more important, and at night the temperatures generally drop. Of course it might be different if you want to be in doors during the day, but I can't see the logic in being out and about with your vans if you are going to be inside during the day.

I appreciate what people say about size of said fans and carrying or storing them, but then that's another good reason to have a T5 as a tow vehicle.

Simon