Re: Beating the electricity horse

> ...the
> real benefit of using a transformer for undergravel heating cables is NOT
> that you reduce the voltage from 120 volts to 10 volts (or whatever).  THE
> REAL reason is that you convert a potentially fatal AC line voltage to a
> much less harmful DC voltage.


Transformers only step the voltage up or down -- they cannot convert
AC to DC.  Rectifiers convert AC to DC.  Inverters convert DC to AC.

Richard Masoner
at work in chilly and windy (but sunny) Champaign Illinois