I have found that when I have help firing, and firing consistently every 5 minutes with a timer, I can easily make 5 gallons an hour.( 2x6 raised , AUF, 10% concentrate ). When by myself, I am lucky to be a 4 GPH. Seems like while drawing it needs wood, the the press inevitably spikes in pressure.....blah blah blah..you get it. Busier than a one armed paper hanger!!
Anyway, with some luck and more important money I can up grade after the coming season.