The Stovebolt Site Forums The Shop Area Interiors heater question

i have the proper heater in my 50. but what is the proper switch to turn on the blower motor? does my heater (non fresh air) need a flow control valve or does it circulate through the heater core all the time?

A recirculator header (non Fresh Air) did not originally have a flow-control valve (does it need one or not, that's a matter of opinion).

As for the heater blower switch, it had a dark brown body and a thumb lever. The lever might have been white/ivory with black letters, or it might have been dark with white letters (different years might have had different levers).

I think the heater blower switch would look something like this.

hmmmm.....does anyone reproduce that switch? may be hard to find that one.

That style of switch is not being reproduced. Used and NOS ones show up on eBay every so often.

I believe that switch is a 6V.

Yes, that original switch in the photo at the link above would have been for a 47-55 Advance-Design truck, all of which were 6v.

I do not know much about switches, but would there be a problem using the original switch in a 12v conversion (I have done it and it worked for years)?

that switch is for earlier too, my 46 had a deluxe heater with 2 blowers [seperate heat/defrost] and 2 of those switches .... mine were low/high so must have had a dropping resistor .... a 12V motor on 12V would likely take the same or less current than a 6V motor on 6V

Bill

Never did body work , but I am an electrician 1/2 the voltage 2x the amps (current) 2x the voltage 1/2 the amps so a motor at 6 volts thats drawing 2 amps ,the same HP motor at 12 volts would draw 1 amp the only reson that You should not use a 6 volt switch at 12 volts is when the switch is turned off the contacts in the swich may not open up enough to kill the arch because of the current going to what ever it is running. I hope this helps ,Pete