Various, Scientific American magazine Vol 2…
“ Hartshorn, Payson & Ring entered at the Patent Office, September 3d, an improved stove, in which they claim the combination of the common wood stove and cylinder coal stove, so that the coal may be burned alone, and the draught so arranged as at the same time to heat the wood stove with the same heat, and if wood alone should be burned, then the draught should be so managed and arranged as at the same time to heat the side radiators and coal cylinders. ”
