Attachment 6244
hope this works. This is the start of my DIY chiller a drink heater and cooler.
Attachment 6245
Here it is taken apart.
Attachment 6246
Here is the heart of the project. The little square in the center is the peltier. They heat and cool so make sure that you use the correct side.
Attachment 6247
Getto attached to the HOB fliter.
Attachment 6248
A shot of it on my tank.
The only problem that I ran into was when you cut the heater wires you will have to solder a jumper wire there, other wise the thing does not work. Its something interal to the circuits. If it works good then I will order the peltier fom ebay(cheaper) and try it on a canister filter with some kind of temp control. Right now it turns on and off with my HQI.