## OT: need a low temp heating element-metal

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• If you wanted to build a dry forced air blower, redundant, basically a very low wattage (around 100 watts), what would you use for a heating element/coil? And
Message 1 of 4 , May 9 11:18 AM
If you wanted to build a dry forced air blower, redundant, basically a very low wattage (around 100 watts), what would you use for a heating element/coil? And it needs to operate at 12vdc, iow a car battery.
• ... Heating element out of an old style cigarette lighter might work. Other than that you can get 12 volt 50 watt light bulbs and they make about as much heat
Message 2 of 4 , May 9 12:08 PM
> If you wanted to build a dry forced air blower, redundant, basically a
> very low wattage (around 100 watts), what would you use for a heating
> element/coil? And it needs to operate at 12vdc, iow a car battery.
>
Heating element out of an old style cigarette lighter might work. Other
than that you can get 12 volt 50 watt light bulbs and they make about as
much heat as light.

Have fun with it.

larry
• Nichrome wire. http://en.wikipedia.org/wiki/Nichrome When you know the resistance per foot of length, and voltage, it will be easy to calculate (if you can do
Message 3 of 4 , May 9 1:16 PM
 Nichrome wire. http://en.wikipedia.org/wiki/NichromeWhen you know the resistance per foot of length, and voltage, it will be easy to calculate (if you can do simple algebra) amperage using the formula A = V / R. Watts = V * A. Substituting one in the other gives W = voltage squared / R.Hope this helpsPaul.--- On Fri, 10/5/13, Chris Tofu   If you wanted to build a dry forced air blower, redundant, basically a very low wattage (around 100 watts), what would you use for a heating element/coil? And it needs to operate at 12vdc, iow a car battery.
• The heating element from a 1500 watt hair dryer would be a little over 100W if you ran it at 12V instead. If it s too hot, try one from a 1200 or 1000 watt
Message 4 of 4 , May 9 6:50 PM
The heating element from a 1500 watt hair dryer would be a little over 100W if you ran it at 12V instead.  If it's too hot, try one from a 1200 or 1000 watt one.  You would very likely need a different blower motor though.

Scott B

On 5/9/2013 2:18 PM, Chris Tofu wrote:

If you wanted to build a dry forced air blower, redundant, basically a very low wattage (around 100 watts), what would you use for a heating element/coil? And it needs to operate at 12vdc, iow a car battery.

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