car radiators

[Guest grizzler]

changin battery leads around wont make it go opposite direction that wud just blow me panels  ;D ;D ;D ;D ;D

 

dont think it would :)

[kev43]

course it wud the leads are only positive and negative so changin them around i b puttin negative on a positive and vice versa,,, it the motor i wud hav 2 change not the leads my pal will sort all that out  when i come 2 fittin them he knows what he is doin  

[steve d]

any chance of some photos of these ventilation systems

[Bilco]

Hi Lads,

 

I cut a nine inch diameter round hole in the loft end walls, covered it with weldmesh, then placed the car radiator fan over the outside, wired it up then put a boxed louvre over the fan.  The wires inside lead to a 12v car battery which I keep charging up. I also have a 12w solar trickle charger to the battery to keep a charge running in all the daylight hours. When the fan kicks in (two fans, one each end, in series), they change the loft air in minutes.  Larger solar panels would keep the battery charged as Kev suggests, but I don't have any.  It certainly makes one hell of a difference to loft temperature and humidity, also smell and dust, inside the loft.  The fans only cost a fiver each from the local scrappie and they work forever. If you have them running straight they blast the air out, if you run two together in series they run much slower, but still fast enough to change the air fairly rapidly.

[flyingteessider]

sounds great pics would be great

[Roland]

You can also run them of the mains with a 12 volt transformer.

i have a false roof which enables the breeze to enter from any direction and pulls the air up from the bottom, hitting the back and then out throgh the tops. Any breeze, no mater haow slight, works wonders. Have the car fans ready past two years, and thetransformer, but haven't as yet felt the need to set them up. Will have them opposite, one sucking in, the other sucking out.

[kev43]

aye lads i will put pics up when i hav my lofts finished,,just finished puttin clear upvc corrugated sheet half way across my roof and thinsulate on rest but not had the chimneys and fans put in as yet  but i will do in nxt few weeks  

[Bilco]

I can take photos of the setup, but can't publish them on here because my portable 'A' Drive has been borrowed but not returned, so i can't upload the pix (I use a Sony with a floppy disc to take pix).  I did ring and leave a message, but no reply.  Probably best to go and buy another. Watch this space.  PS. Changing the leads round won't blow the panels, it just alters the direction of current flow and will make fans work in reverse to what they are doing at the moment.