Just got my Hampton HI300 installed a few days ago and the unit itself is well-built and very nice looking. I have been burning small steady fires in the unit since the night it was installed and it works well. I am having issues getting the heat up to the second floor of my house, which is less than 2,000 sq feet. My first floor has an open floor plan and my thermostat is maintaining a steady temperature of 70 degrees with the blower on. The other issue I am experiencing is that the front glass on the unit is almost completely black and you cannot see inside the unit. I was told by the dealer that this should not happen, but it could be cleaned. Is there a way to avoid this from happening all together? Thanks in advance for any tips or suggestions.