Has anybody seen/used/converted a 24volt propex down to 12 volts? I may be able to get one very cheap but not sure if a conversion is possible
I'd imagine you'd have to change the fan motor and whatever ignition system they use. Why not give them a call? Converting might work out more expensive in the end.
Good point, when you start getting into higher amps the price may cancel out any saving on buying the thing.
If its that cheap, then have a read up about step up transformers or inverters and see what the fan motor draw is on the 24v one it may still be your best bet?
you will have to change pretty muc all the electrical components, you could just series up a spare battery and run a 24 volt feed to it, would be the cheapest way probably
well i took the side off it and it looks like the blower motor stills runs off 12 v just with a whacking great big resistor in line to drop the 24v down. Also there is a capacitor that is labelled as 24v so i will speak to propex and see what they say
Give propex a ring they are very helpful and you may find that they are all 12v and they just drop the 24v to 12
If you give propex a call, they'll let you know whether bridging the resistor will magically convert to to 12V. I suspect it will.
yep already emailed them and had an email back: A new 12 v control board is required and removal of the resistor. the control board is about 125 quid delivered.
Yeah 125 is good but then the cost of a thermostat etc. Just weighing up what to do. I am going to have a look at 12v to 24v upconverters
A DIY stepup converter would a cheap option but £125 for a controller board looks like quite good value compared with some of the converters on the market however ... - of course the motor can be got to run on 12 volts without the resistor then you would only need a lower power converter for the 24volt controller board. e.g [ebay]110784996295[/ebay]
Well I just ordered this one 250874790943 Hopefully it will be ok. Because the fan is controlled via the control board i am going to leave it all as is. The propex only uses 1.4amps so I think the upconverter will be ok. The diesel eberspachers that are 24 volt are harder to run like this due to the glow plug pulling upto 20 amps on start up.
