[PNW Fireguy]

First congratulations on your new rig. We too like the floor plan you have chosen. I don't think you want to run the tank heaters with the tanks empty. I don't know where you are located but in the pacific nw it rarely gets that cold so I have seen others simply use an incandescent lamp in the basement. I set the heating thermostat to the lowest possible setting the first year we purchased. It definitely worked but it used more propane than I would have thought. We are now days away from going FT so no longer an issue.