Hello everyone. I never thought I would be joining a forum about stoves but I am very happy to be here and thankful for any advice I may get. We bought this house a year ago and it has a pellet stove. It is a Quadra Fire Mt. Vernon AE model. It seems like a really nice stove. Around the end of winter last year I noticed that it started to make a rumbling sound, not too bad but a sound that was not there when we first started using it. This stove is 3 years now and has been professionaly cleaned every year. Now this year which is our second year of using this stove the noise is unbearable. It really does sound like a freight train. It's not the blower that I know of. It happens only when the stove first lights up and first thing in the morning is when it is the worst. We have it set for 4am and it wakes us every morning. It happens about 5-10 minutes after the stove lights and then will make this noise on an off for around 35 minutes and then it will stop and the noise will be gone. I was thinking about getting up tomorrow at 6am and making a cell phone video of it and posting a link here so you all can see and hear what im talking about. There is no way that this can be normal. Ive read about clanking sounds and this is not a clanking sound at all. I surely will appreciate any help. Thanks.