I've used my propane fire pit since March, about 25 nights with it on high, probably averaging 3-5 hours a night. My propane went from just over 3/4 tank to 1/4. I was surprised how frugal it is, we only use propane for stove top and occasionally the frig other than the fire pit.
I got my connector from Amazon with a 25' hose. The previous owner had a male connector on the propane outlet on the RV, so if you opened the valve you had a major leak, not sure what he was thinking.
'09 Camelot 42KFQ