Question: Our new wood stove smokes up the room when we open the stove door for stoking. We have a tri-level house, and the stove uses 6 feet of pipe from the stove to the ceiling, then another 6 feet of pipe through the roof topped with a rain cap. The salesman who sold us the stove said we needed another 2 feet of chimney for sufficient draft to stop the problem. We did this but the problem persists.
Answer: There are several angles to consider when the draft does not appear adequate. Most wood stoves have recommended drafts. You can check this with a manometer that should register .05 inches of water when placed in the flue. The location of the stove in the house is also important. If the stove is in the lower level of a tri-level, 14 feet of chimney might not be enough. Large trees can interfere with your draft causing high-pressure areas around your chimney. Also, you could have air leaks in your house, causing air to rush out various cracks creating a lower pressure around your stove. Opening a window slightly sometimes helps, but it must be on the pressure side of the house. Opening and closing doors of certain rooms can sometimes affect the air pressure in a house as well.
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