Could this work for raising worms??

[ctf58]

Could this work for raising worms? My thoughts are it gets cold in the winter here and I can expect months of sub 40 degree days and many 10's at night in my unheated garage.
Could I get a rubber tote and use my old fish aquarium heater? It has to be in water so I thought I would make a container out of 3"pvc with a cap on the bottom and fill it up with water. I could place it anywhere in the tote and can set the temp from 60 to 90 dredges. It in turn would heat the water and radiate heat into the bedding. I thought a plus might be added humidity. I could make it stick 2" out of the bedding and put some sort of mesh over the open top of the pvc where the cord comes out. It might not heat the whole tote but wouldn't the worms move towards the warmer spot if they get cold?
Second question: Is worm tea a problem with growing worms in a box or will I be emptying the tote out completely and adding fresh bedding regularly enough that it is not an issue?

If this is going to be a huge mess especially during the winter my wife will have a fit.

I just want worms next spring and have totes and newspaper and a aquarium heater laying here and it seems like I should be able to make something out of it.