ETHEL K how big is this coffee boiler ?
DAVE W I believe it holds at least a gallon of liquid comfortably with room for coffee or hot chocolate mix. We use a couple of them (with backup) over an open fire to mix hot chocolate for large groups of people who are rafting with our outdoor adventure company in Maine. It is the perfect size for us as it holds a lot of liquid, but is still manageable. I have not seen anything better for our application. Be aware that it is a boiler, not a percolator so it has no inside parts. When we use it for coffee, we make "Cowboy Coffee" by mixing eggs with the coffee and shocking it with cold water after bringing it to a rolling boil three times. I hope this is helpful. FYI Extremely happy with the product and the service from Sunny.
JASON B It's a 36 cup.
About 12 inches tall and 9 inches wide.
Hope this helps.
EDNA D I purchased 2 of these for work. We had a crowd of 40people. Not all had coffee. It was plenty big for a large crowd. I don't have it right in front of me now (I'm at home). It is about 13 inches tall and 10 inches across on the bottom and about 6 inches at the top. Hope this works for you. We use this outside on a wood burning grill. It is perfect.
ROBERT H I do not have it here to measure, but I think it is about 8 inches in diameter at the bottom, and about 10 inches high.