Ok, it's a pretty straight-forward question, but I realize there are a lot of variables in giving an answer. So, here's some info and please feel free to ask questions if I miss something.
I have an InTech MAX Flyer TD. The ONLY propane accessory (at the moment) is the stove. It is a 2-burner stove and we use it for everything from cooking to heating water for dishes and coffee. I don't have any plans to add a grill, but I "may" decide I want an external demand water heater at some point. Currently, I don't even have on-demand water, just a pump siphoning from a 7-gallon jug. If I did an external water heater, it would be for showers. That said, I have a solar shower so the odds of adding it are remote.
I currently have a 25lb bottle on the tongue. I expect I won't have to fill it for a couple years... but I'm only guessing. I'd like to move the weight to the rear, and drop to a 5 lb or 10 lb refillable bottle, mounted on the side. (I have more tongue weight than I need. Moving/replacing the current bottle will only help the situation.)
So, for someone who camps an average of 2 nights per trip (4-5 meals prepared) and would like to go camping a dozen times between fill-ups, how much propane do you think I need?
Thanks in advance for the info!