I had our 2 propane tanks filled today. This was the first time, as we just picked up our trailer from Escape on June 24. I was a little surprised by the cost, but we did use it a lot. I figure that someone may the information helpful or at least hopefully a tiny bit insightful. If not, oh well.
Here are the fuzzy statistics:
Days/nights used: 18
Propane used for: Fridge exclusively, turned on for showers (4 people/let's say 3 showers per day), and an Outland fire pit (estimating 6 hours of usage)
Propane used: 8.6 gallons
Cost per gallon: $5.56 (Got the propane filled at a local building supply company)
Total cost including taxes: $50.71
Cost per day/night: $2.82
I don't know how much the individual units use, but I suspect that the fire pit might consume a fair amount of propane. However, most campgrounds and state parks in the northeast will not allow firewood to be brought into the campgrounds due to bugs, so if we wanted s'mores or to roast some veggie-dogs, we'd have to pay up to $9.00 for 5 or 6 kiln-dried pieces of wood. So that cost is saved.
Anyway, that's the information. I don't understand how cpaharley does it, not using 2 propane tanks worth in 2 years...