Denise and I sometimes can go all summer on two 30 pound tanks. In the winter storm watching expeditions to the park on the edge of the Pacific Ocean in winter with everything (fridge, furnace, water-heater) running we sometimes make it two weeks and thats with a lot of luck and sunny weather.
Most times I have to switch in the third tank to make the two week.
Denise and Dennis Dalla-Vicenza Co-pilot Mizzie
Gracie a Winnebago 29 RQ + George a Suzuki Toad
. (Co-pilots emeritus Furb, Izzy & Mikkael)