Gary1 wrote:Thanks to all of you for the info.
I recall seeing in one of wsherricks older threads that he thought that a pound of coal would produce about 1,000 BTUs. If so, I'm wondering for how long and at what temperature? This being the case, would a Glenwood #6 which holds about 40 lbs of coal produce about 40,000 BTUs and the #8 which holds 60 lbs produce 60,000BTUs?...Gary
Whoa.. Heres what yer looking for..... Forget about temperature for a minute, it confuses understanding the following concept.
1 pound of coal will produce roughly 12,500 BTUs - some a little more some a little less. SO in your example, 40 pounds of coal burned for 24 hours would produce roughly 21,000 BTUs per hour. (40 pounds x 12,500 per pound) divided by 24 hours = 21,000 BTUs/hour. BUT what the stove is specifically rated for is unknown by me..
Heat output ratings for stoves or other heating appliances are spoken in terms of maximum BTUs per hour. Ratings by manufactures are a little unrealistic. For example My furnace is rated for 120,000 BTUs per hour. I would never run it that hard. It may not be safe and definitely wouldn't be efficient. Mine burns at about 45,000 BTUs per hour using about 80-85 pounds per day on the coldest
days of winter .