PDA

View Full Version : Defrost blower?


John S
March 24th 05, 03:16 AM
Can someone suggest a low-current, light-weight, inexpensive 12 volt fan to
use in the defrost branch of the cabin heat line for clearing up a
windscreen while still on the ground, when ram air from the prop may not
amount to much? thanks

Morgans
March 24th 05, 03:47 AM
"John S" > wrote in message
ink.net...
> Can someone suggest a low-current, light-weight, inexpensive 12 volt fan
to
> use in the defrost branch of the cabin heat line for clearing up a
> windscreen while still on the ground, when ram air from the prop may not
> amount to much? thanks
>
>
Scrounge through some dead computers. Some of the muffin fans are about the
size of a scat tube, and put out a substantial amount of wind. They also
happen to be 12 volt DC.
--
Jim in NC

March 24th 05, 10:39 PM
On Thu, 24 Mar 2005 03:16:11 GMT, "John S" >
wrote:

>Can someone suggest a low-current, light-weight, inexpensive 12 volt fan to
>use in the defrost branch of the cabin heat line for clearing up a
>windscreen while still on the ground, when ram air from the prop may not
>amount to much? thanks
>
Many hair driers have 12 volt dc blowers in them. I used a pair of
them in my electrified Fiat 128 for defrosters. Used another one for a
motor cooling fan.

When I scrapped the fiat I saved one of them and used it for blowing
up an air-bed for camping.

Bushy Pete
March 25th 05, 12:56 PM
Or try your local car wreckers. The heater fans are quite powerfull in many
models and run quite happily on 12 volts with hot air as well.

Hope this helps,
Peter
> wrote in message
...
> On Thu, 24 Mar 2005 03:16:11 GMT, "John S" >
> wrote:
>
> >Can someone suggest a low-current, light-weight, inexpensive 12 volt fan
to
> >use in the defrost branch of the cabin heat line for clearing up a
> >windscreen while still on the ground, when ram air from the prop may not
> >amount to much? thanks
> >
> Many hair driers have 12 volt dc blowers in them. I used a pair of
> them in my electrified Fiat 128 for defrosters. Used another one for a
> motor cooling fan.
>
> When I scrapped the fiat I saved one of them and used it for blowing
> up an air-bed for camping.

March 25th 05, 10:46 PM
On Fri, 25 Mar 2005 11:04:23 -0500, Bryan Martin
> wrote:

>They're also quite heavy and way over powered for this application. A small
>computer fan would do the job nicely for way less weight and electrical
>load.

Not to mention the fans are virtually ALL built into the heater
assembly, and being squirel cages, are useless outside the case.
>
>in article , Bushy Pete at
wrote on 3/25/05 7:56 AM:
>
>> Or try your local car wreckers. The heater fans are quite powerfull in many
>> models and run quite happily on 12 volts with hot air as well.
>>
>> Hope this helps,
>> Peter
>> > wrote in message
>> ...
>>> On Thu, 24 Mar 2005 03:16:11 GMT, "John S" >
>>> wrote:
>>>
>>>> Can someone suggest a low-current, light-weight, inexpensive 12 volt fan
>> to
>>>> use in the defrost branch of the cabin heat line for clearing up a
>>>> windscreen while still on the ground, when ram air from the prop may not
>>>> amount to much? thanks
>>>>

Google