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No. Removing the cause of concern will only lead to deeper concern. You cannot use any fire-powered appliance like a fireplace or furnace without an escape route for the smoke and fumes. If you remove the flue intending to repair or replace it, you should only use the fireplace, wood stove, or furnace once the flue is in working order. If you cannot replace the flue you have removed, call a chimney repair professional immediately.

Even if you aren’t using a home chimney anymore, you need to vent it at the top and bottom to allow for continuous airflow. A blocked-up chimney is still a chimney, so it requires annual maintenance and a professional inspection to ensure its structural integrity is intact. Consult a chimney professional about the ideal timing for venting an unused chimney.

A hot fire alone will not remove significant creosote buildup and can be dangerous, as it risks causing a chimney fire. While the warmth from a fire can help loosen stuck tar, making treatments like creosote logs more effective, it is not a substitute for proper cleaning. For existing creosote, the safest and most effective method is to have your chimney professionally cleaned by a chimney sweep.

Soapstone wood stoves hold onto heat the longest, which means you can burn less fuel and enjoy the warmth for longer. Additionally, catalytic wood stoves include a catalytic combustor that can reduce emissions and create a cleaner burn no matter what the stove is made of. Of course, the most efficient wood stoves also tend to be costlier up front—but they can still save you money in the long run.