>>I was wondering if anyone could help me with a design of a heat cable
>> for my new terrarium. I have on fairly expensive cable and would like
>> to duplicate it. It has a 110v plug at one end and is about 8 feet
>> long. The end has a small knob which I assume is a resistor of some
>> sort. The actual heating part of the cable is about four feet long,
>> the rest is just to get to the outlet. Oh yeah it is 15 watts. I
>> think for someone who knows how this works should be a no brainer. I
>> recently saw an article somewhere that suggested using a toaster or
>> aquarium heater element, halved , coiled around a small wire and
>> threaded into a silicone tube. Any advice would be excellent, thank
>> you.
>>
>> BTW, i have seen some online for planted aquariums that use a long
>> length of wire, which is exactly what I need but seems to be really
>> long.
>>
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>
> Hmmmmmm, well.... I can't speak for others in this newsgroup but I
> think we're all rather busy doing Night Rider lights with 555 timers
> for our 2CVs. Things are quite competitive so a lot of this stuff is
> kept secret. I mean, don't believe everything they tell you....
> BASTARDS!!!!!
>
> Cough....
>
> Errrr, Anyway.
>
> This sounds like one of those things that makes a difference between
> cute things and soup so.... I mean, hey... play the nice guy and dole
> up the money for a proper one.
>
> DNA
I posted a source for heating cable to sci.electronics.basics !