So I'm going from stove top brewing to a 10 inch high pressure propane burner. And I'm doing a 60 min 6.5 gal. Boil . So my question is hiw much propane do i need . i have a 3 gallon propane tank on hand. should i buy a bigger one.??A rough estimate maybe??
I don't know LP tanks well enough to know what a 3-gallon tank is, but is it the same as the standard BBQ tank available almost everywhere? If so, I get at least 5-6 one-hour boils of 3-4 gallon liquid from my tank of that size.
I didn't know propane tanks also come in gallon sizes. I always have seen them as weight. the little 1-lb ones for portable grills, the ubiquitous 20-lb ones for standard grills, plus I've seen bigger ones, 50 and 100 lb sizes, plus the monster ones for home use. For the OP, a standard grill size 20lb tank should work fine. Most people can get 2 - 4 brews (some even more maybe) out of one fill on those.
I have 2 five gal tanks. It's measured in pounds here and it's a standard 20# propane tank you'd see on a grill. A full tank lasts about 5x60 min of boil time.