Rena make the most reliable aquarium heaters I have ever used. Its been a
few years since I have done a great deal of anything with aquariums though,
things may have changed. Your right Eddie I don't think it would take much
to hack one of them to make it go higher, just take into consideration any
components that are inside the glass tube will be heated to a higher temp
then the water outside as well.

Regs,

JJ

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of SavanaPics@AOL.COM
Sent: Tuesday, 17 February 2004 2:18 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE:] Temp test tank


I have an aquarium that I built into the wall in my living room that is 8
feet long and close to 200 gallons. I  had to put a heater in it due to the
fact
that I keep my house at 68 in the winter.  I use a 300  watt heater that has
a
scale on it from 65 to 85 degrees F  basical that is up to close to 30
degrees C...  imagine if you used it without the built in thermostat it will
get
hotter than you want. You will just have to control it via a sealed  LM35Z
and
some software.. I forgot who made it but if you need me to, contact me
offline
and I will find out for you

Eddie Turner, kc4awz

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