Re: [FWDLK] watts the problem ???

[David Homstad <dhomstad@xxxxxxxxxxx>]

Roger,

I am taking a guess here.

Typically, most car heater blowers run straight battery voltage when on high
speed. The high speed switch position should then be zero resistance and no
different on a 12 volt system with a 6 volt switch.

Since a 6 volt system needs twice the amps to get the same power as a 12
volt system to the blower, the low speed current resistor inside the 6 volt
switch is probably half the resistance of a 12 volt switch. A 12 volt blower
operating on 12 volts will then probably run twice as fast using the low
speed switch position on a 6 volt switch, compared to a 12 volt switch on
the low speed position.

Dave Homstad
56 Dodge D500

-----Original Message-----
From: Forward Look Mopar Discussion List
[mailto:L-FORWARDLOOK@xxxxxxxxxxxxx]On Behalf Of Jan & Roger van Hoy
Sent: Saturday, July 01, 2006 5:02 PM
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Subject: [FWDLK] watts the problem ???

Ok, this is a dumm question, maybe the heat's gettin' to me today...

If I use a 6 volt heater blower control on a 12 v car, how well will the low
speed work?  I know the unit is heavier than a 12 v, but would the
resistance on the slow speed be too far off to work?

--Roger van Hoy, Washougal, WA, '55 DeSoto, '58 DeSoto, '56 Plymouth, '66
Plymouth, '41 Dodge

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