My dealer quoted $199.00 before July and $249.00 after July for yearly service on the stove. I have already empty the tee on the pipe and cleaned out the ash. If I decide to clean the stove my self I will invest in a good brush to clean the pipe, I have 5 ft of vertical. My only question is what is involved in cleaning the exhaust blower. The manual states yearly or as needed, but requires no lubrication. It also states by: Qualified service tech, and doesn’t state how to do this. When I remove the back brick I can see the exhaust fan and I just hold the vacuum in the exhaust port, which I do monthly. Is there anything else I should be doing? Quad Santa Fe.