About chimney flue cleaning
Unless you live in a place where it’s always cold, the best thing you can do when autumn is near is to clean the chimney flue. You should right down the dimensions and shape of the chimney flue and then go to the hardware store, to buy brushes and rods that match the dimensions needed to fully clean the whole length and width of the flue.
Cover the fireplace inside the house with some plastic sheeting so that you don’t fill the room with dust when you clean the flue and then get up on the roof.
Place some plastic sheeting to cover the chimney but cut a hole where the brush and handle can go through. After that, using the brush attached to the rods, sweep the interior of the flue and remove all the byproducts that might have deposited. Then, remove the sheeting from the chimney and fireplace.