Pro and Con of multiple heaters in one tank

[DJ88]

Jack,

I am in the process of building a PIC(Programmable Interrupt Controller) based Control system for home use. Once I write my calculus midterm this week I will be prototyping it to see how things go. If that goes well I will try making one. I am planning on using this summer to get this and a couple other projects going.

It will measure the tank temp and then control; fans(variable speed deepndant on tank temp), lighting, heaters and if I can get one large enough a pelltier device to do cooling as well as heating.

So there will be some available in the future. I don't have a cost yet. It will be cheaper than others out there I hope. But very small quantities produced.

Just so ya know.