My stove is installed on the lower level of our home and is sitting on concrete. I have a connecter then a tee and then vertically 4' to a 90 then it runs outside with a cap, all 3". I ran the stove in normal operation and when it warmed up outside I shut it down. I did not clean the firepot or any other part of the stove right away. It has been about 5 days now and when I went to clean it, the fire pot and inside was damp. It turned the ash to a messy sludge. It has been raining heavy here for the last 2 days. Is this from condensation or should I be concerned with something else? I have also fired it back up with no problems. Thanks in advance for any info!