Hi, I bought a Napoleon insert last April and installed it this past September. We have only been using it since it got cold this year. I'm using Pennington pellets which unfortunately we really detest already, since the are loaded with dust like you wouldn't believe. the only good part is I only paid $224 for them back in the summer. We clean the stove out everday. However, our exhaust fan has developed a noise. I hope it is not on it's way out yet. Has anyone else experienced anything similar? I have e-mailed Napoleon yesterday, but so far no response. I'm not sure who to go for service since I purchased this on the internet from Zoobler. I would think it should be covered by warranty. Any suggestions? Hopefully, it is just a simple tweak or fix. Thanks, Kim