Elmira, NY here. Right along the NY, PA border. 6th season burning in my Keystoker 90K. Usually go through about 3-3 1/2 ton per/yr. I have learned a lot since joining this forum and from trial and error on my own
. I now have the stove hooked to a chimney instead of using a direct vent. I now believe this is the best way to vent a stove unless there is no other option. I have some ductwork attatched to the stove to better circulate the heat to the 1st floor. Also this is the 2nd year running the stove with a DHW coil installed. The coil was worth every penny. Preheats the water in the fall and spring so NG doesn't have to run as long to bring water up to temp. When winter sets in I can turn a couple of valves and run directly from the DHW coil and holding tank and shut the NG off completely.