A heated floor would be the cat's meow. Where I'm at, no matter if it's electric or would or gas, it's always cold down by the floor. But like Mbaird said dress in layers and you don't need much heat.
use to see these type in floor system up in MN,SD, an ND on potato farms in the in ground bunkers to keep the spuds from freezing and lot of there shops as well! works great when battling long term zub zero conditions!
