I threw some space heaters in the belly. Ran it with the furnace full blast for a couple hours. Also turned electric and gas water heaters on. Success! Luckily we topped off fresh because the pipes are completely frozen at the facility faucets!!
Tomorrow will be above freezing. Someone told me to set a temp on the furnace (72ish) when I use the water pump, even if we are using space heaters. Guess the theory is that the furnace at some point will kick on and help heat the underbelly.
The for the help guys