I'm throwing around new ideas on how I'll heat my barn. The barn specifics are 32x56x14. 8x16x8 bathroom in a corner which will be heated 100% of the winter for frost protection. I have electricity out to the barn but not a gas line, propane. I could run a gas line, the cost would be minimal.
You had me thinking you had natural gas. Don't be afraid of a oil furnace.