Club 80-90 Forums

Am in the process of making an air circulator for the van(bit o pipe from the roof wit a pc fan in 1 end ) as in my hightop all my lovely heat hides up in the roof and escapes out the roof vent
My question is though is it going to be more efficient to have the fan mounted at the top blowing downwards or at the bottom sucking upwards.
Who has a degree an can put it to some use

Up top reblowin warm air down which naturally wants to rise....

What Peet said. Fan on top pushing warm air down.

wouldnt it be better just to isolate the vent from the nasty outside environment and block it? i went to austria in february in the back of a minibus(cold) we taped the vent up (warm). but if your van is that cold, i take it your unfortunate enough to have an Aircooled!!! in that case, sorry thats as warm as it gets.
ps, a fan isnt going to do a thing.

Well my nose runs and my feet smell. Does this mean I was born upside down?

Sorry I know I know....

but if your van is that cold, i take it your unfortunate enough to have an Aircooled!!! in that case, sorry thats as warm as it gets.

No i dont have an Aircooled i have a 1.6 smoker. I think its got summit to do wit the -3 that it was outside. 3 weeks ago my toes turned purple and all my fingers swelled up due to the freezin conditions. have only just recovered. Trust my eber too give me grief on the coldest week of the year here in ireland(doin a 3.5 month tour).
now its warmin up thought it was about time i sorted a circulator for my van

http://wiki.80-90.co.uk/index.php/Bodyw ... Insulation

http://wiki.80-90.co.uk/index.php/Campi ... d_flooring

http://wiki.80-90.co.uk/index.php/Heati ... ater_hoses

Hewlett-Bulley pages on Heating/Insulating VW Campers - the business!

If you insulate the roof well, the heat will come down and say hello, rather than disappearing, as well as shutting the roof-vent when you're cold?

Who has a degree an can put it to some use

You don't say what discipline is required though - Fluid mechanics perhaps

You need to pipe the hot air down to your lower regions not blow it down, a centrifugal blower would be best of at least 3" diameter, hose ditto dia. not a silly axial-flow fan

How about a 12V oscilating fan? and drape a curtain to isolate the cab, we did this in the bay and it made a huge difference.