Accessory Caravan fridge fans.

Hi, Jim ,thanks for the reply, just a point who is " Tricky's " ? and I just thought that sucking the hot air out would work better , but always open the suggestions and idea's, at least if I can get the fan I can just zip it to the vent and try it both ways. also any idea of the price. Cheers Des,

Sorry Des,

Dick Smith. About $25 from memory.

See reply below for link.

Des,
Your idea "I just thought that sucking the hot air out would work better" is correct....

For an example look at any electrical appliance, Fridge, Computer, Inverter etc they all suck out the hot air from inside the appliance, this brings in fresh air to move across the electrical components (heat exchangers in a fridge), it's the movement of the air that makes it affective.
Put the fan where it will draw the hot air up and out through the top exhaust vent to the outside of the van and it will bring in fresh air from the lower vent to replace it creating the cooling cycle, because the air coming in is cooler than the air it replaces.

Mainey...

The 2 computers and fridge I have draw the cool air from outside & blow it directly accross the electrical components/condenser. Either way it's going to blow/suck a similar amount of air through, the main difference being if the fan is after the heat it will run hotter and be more likely to burn out. That's why I fitted mine (12 volt) to the bottom & has worked well for me maintaining the temp in the fridge on a much lower setting.
Cheers Craig..........

If you 'force' the outside air with a fan, INTO the area needed to be cooled, the air is forced (funneled) in almost a straight line, through the limited (fan) area into the cabinet and exiting the cabinet area at all crevice and gaps at various air pressures.

However, when the air is forced (sucked) OUT of the same cabinet area via an exhaust fan, the air is drawn from every-where within the cabinet area, and yes those same crevices and gaps too, and exiting via the exhaust fan area, therefore drawing hot air from everywhere within the cabinet area.

The exhaust fan is manufactured to withstand heat created by the fridge or inverter electronics as it has to be covered by warranty, remembering the air movement also cools the fan too.

The cooling is created by air 'movement' over the components, in this way even warm/hot air will still cool the cabinet’s internal components.

That's the reason people sit in front of a fan on hot days. It's still blowing the same hot air in the room on the people, but the 'air movement' creates a cooling effect, ask anyone who uses a fan as a cooling device in a tent in the Northwest lol

Have checked my 12v fridge and inverter, both do work by sucking the hot air OUT of the cabinet, hence cooling the electronics.
Mainey...

240V Fans

Sorry stuffed the link up.

HI, Thanks but we dont normally take the van bush , usually the tent , but it would be nice to have a big fan in the tent thru the day.
But also I have a Jayco wind-up van and it cools down quick. Cheers Des.