We at Leisure Line offer a duel burner Hyfire. Twin 90,000 BTU inputs feeders (burners). Max output of about 144000 BTU's. Burn 1 90 till it can't keep up, then turn both burners on. This stove comes standard with the coal trol digital thermostat. Give our factory outlet a call (570.788.3330), it's less expensive then the Harmon.