I purchased an Englander 25 EP from Lowes in early November. Several weeks after the install, we noticed that the convection blower had an annoying intermittant whine on speed #6. The simple solution was to use speeds #5 or #7. As time went by, the noise became more constant and began to occur at other speeds. Last Thursday, the wife got on my case and I called Englander tech support. At first, it seemed like I wasn't going to get any resolution. The support tech told me to hold the phone near the stove, so that he could hear the fan. He then stated that it sounded normal to him. I explained to him that WE heard the whine and that it was very annoying. I then explained to him that I had retired from the phone company and knew for a fact that telephones are designed to capture the human voice and are specifically designed to eliminate high frequency background noise. He then agreed to send me a replacement fan. It arrived today and I was able to install it without even moving the stove. All is well for now. Hopefully we won't have a reoccurance of the issue. I also opened the first bag of our second ton of pellets today.