I replaced my old heatilator fireplace with a Regency I1200 small wood insert with NO blower . That was all I could fit inside that firebox.....Anyways after about a month of owning it I am a little worried. It doesnt seem to put out the same heat that my fireplace did. My house is fairly large with cathedral ceilings and open floor plan. The fireplace after 2-3 hours of cranking it would heat the living room up to almost 70 degrees on an average winter night. My new wood insert has not gotten the living room that warm yet. Also I rarely used the blower on my heatilator when I had it. Anyone have any ideas??