Posted by Charlie on October 12, 1999 at 01:42:37:
In Reply to: 6 Volt Heater Motor Conversion? posted by Bill Nasby on October 11, 1999 at 13:36:12:
I just did this in a 48 B1PW. I used a 1.0 ohm power resistor (100 watt power rating). The voltage across the heater varies from 6 to 8.5 volts depending on switch position, all of which are within reasonable approximation to 6 volts or the output of a 6V alternator/generator. Therefore, the voltage acoss the resistor is in the 5.5 to 8V range. So the "effective resistance" (real component of impedance) is ~1 ohm, and the current is 6-7A, and the power consumption of the resistor is I*V ~ 36 watts. It should get warm but not hot. Solution: make sure it's a POWER RESISTOR. A little electronic type resistor has a comparatively tiny power rating. To dissipate that kind of heat it has to be physically big. Try some sort of electronics store. I'm not sure if my heater is stock, but it was/is 6V.
Charlie