If it has a 100k burner... keep the propane bottle warm....in the sun, etc.... that's a LOT of draw on a 20lb'er.....
At 100k, you might get 4 hours TOTAL use out of it(if full), if you dont use anything else......
Chase
Apparently discountinued... but it is similar to this one.
http://www.campchef.com/store/item/76/EX170LW_outdoorsman_high_low_combo_stove.html