Dan walmart should take it back no problem, and you can buy a different heatpad. The one I bought was from walmart.
This is the one I have, and doesn't have the annoying auto off function. This one is 12"x15", but they also sell a 12"x24" one which would probably be better for your application.
Thanks ! Your right, they should take it back no problem, I need to find one of them like you have.
Originally Posted by 31drew31
And these heat pads... whats the caution when using around water? i have cracked aquarium glass before from heat lamps too close, and misting.
so whats gonna happen when i have a heat pad on the bottom of an aquarium and am misting constantly... minimal moisture getting through the substrate, but its getting through none the less.
Heating cables under the aquarium?
Ive never had a problem with the glass cracking... mine is under an aquarium, but has a false bottom with about 1" of water always in the bottom, so misting/watering etc never changes the waters temperature any noticeable amount. I would avoid getting it wet, but looks to be sealed fairly well and getting lightly misted shouldnt cause a problem.
Another option like WireMan mentioned is heat cables, which you could wire to a dimmer switch. I have seen people make their own heat pads with heat cable covered in a thick (2cm) layer of epoxy to seal it. These were used inside monitor cages to heat the soil for appropriate nesting, underneath wet/moist dirt.