I built one of those for my 4 week old chicks. It works great for them since they're pretty feathered out.
I highly recommend the heating plate brooders. Don't think pads would work too well in a cool or cold environment. Chicks like to be warmed from the top down, which is more like a hen would warm them... not from the ground up.I think she's looking for the electric "plates". I've seen them advertised
