On Tue, 30 Jan 2001, Michael Rigby-Jones wrote:

> > -----Original Message-----
> > From: Shawn Yates [SMTP:syates@CARETECHNOLOGIES.COM]
> > Sent: Monday, January 29, 2001 3:13 PM
> > To:   PICLIST@MITVMA.MIT.EDU
> > Subject:      Re: [EE]: Thermoelectric coolers...
> >
> > So if your goal is to actualy HEAT something, TEC is a good way to go?
> >
> >
> Well, it would certainly do the job, but there seems little point when they
> are so much more expensive than e.g. a power resistor! (unless you need to
> cool something at the same time of course :o)
>
> Mike

  I'm totaly agree, peltier heating/coolers are excellent but only for
both operation: freezing AND heating, they have a poor efficiency but they
are the only one solution ( as I know ) for bidirectional thermostat
usage.

Vasile

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