reducing heat inside camper trailer

[Bird]

I was also thinking of using a few old PC fans to try and draw out the hot air.

I would think you would want a few 8inch case fans to make much difference over 1 normal size desk type fan with the amount of heat and area your trying to cool..

[Meggsie]

I made my own from the bubble wrap silver foil rolls. You can buy it  1200mm wide. Used two lengths taped together with silver sisal tape. Then punched metal rings along the edges. Used it for 6month trip around OZ with a camper trailer. Amazing the difference it made. Cost $50 all up.


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[noel_w]

I have one of the Ryobi fans
https://www.ryobi.com.au/products/details/18v-one-hybrid-fan


Have tied a bit of rope across the middle of the camper and hang it from there pointed towards the bed of a night time. I use other Ryobi things while camping so a battery is not a big issue. I have a 12V Ryobi charger so can charge them while away as well.
A 4A battery will run the fan all night on low which is all you need as it pushes a fair bit of air. The fast speed gets a bit noisy