« Reply #60 on: January 18, 2022, 02:09:57 PM »
Just for fun, I decided to calculate the average BTU output of my Classic Edge 750 for one cycle. The cycle ran for 20mins to raise the 330gal of water 15deg. A BTU is the heat required to raise 1lb of water 1deg F. So the math works out to be 124,000 BTU/hr.
Some caveats: There was heat demand in the house during that cycle, so the heat input was more than simply raising the water temp. And the first two minutes of time were getting the fire "going" again.
Central boiler claims a 12-hr average output of about 150,000 BTU/hr with a max of 245,000 (per EPA tests). I'd say that I'm getting about those numbers with my unit given the parameters I mentioned.

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Kubota M7060 & B2401, Metavic log trailer, Cat E70B, Case 310, 750 Grizzly ATV, Wallenstein FX110, 84" Landpride rotary hog, Classic Edge 750, Stihl 170, 261, 391