Posted by JohnH on July 15, 2007, 8:29 pm
Is it possible to rewire a heater to make it run on 230V without using a fat
transformer?
I want to make a kotatsu table (a table with a heated element underneath).
If enough of your body is warm you don't need to have the remainder of the
room so warm (after all, the room itslf is happy at any temperature).
http://store.yahoo.co.jp/kinositakagu/b2f3c5beb01.html
John
Posted by Vaughn Simon on July 15, 2007, 8:37 pm
> Is it possible to rewire a heater to make it run on 230V without using a fat
> transformer?
With a 220 dimmer? Wait a minute! Just a diode (with proper voltage and
current ratings) would do the job. Within limits, a resistance heater only
cares about average power and ignores the peaks.
Vaughn
Posted by JohnH on July 15, 2007, 9:06 pm
I'm not sure what size heater they have but maybe 500 Watts?
John
>> Is it possible to rewire a heater to make it run on 230V without using a
>> fat transformer?
> With a 220 dimmer? Wait a minute! Just a diode (with proper voltage
> and current ratings) would do the job. Within limits, a resistance heater
> only cares about average power and ignores the peaks.
> Vaughn
>
Posted by clare at snyder.on.ca on July 15, 2007, 11:10 pm
On Mon, 16 Jul 2007 00:37:14 GMT, "Vaughn Simon"
>> Is it possible to rewire a heater to make it run on 230V without using a fat
>> transformer?
> With a 220 dimmer? Wait a minute! Just a diode (with proper voltage and
>current ratings) would do the job. Within limits, a resistance heater only
>cares about average power and ignores the peaks.
>Vaughn
Hook 2 in series
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Posted by nicksanspam on July 16, 2007, 4:16 pm
>Have you considered running a 240 circuit?
>that would be "most like home" for the table.
I'm confused. Japan is 100 volts, right?
How about a $20 1500 W 120 V space heater with a thermostat under a table?
Nick
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> transformer?