negative pressure

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  1. K

    Smoke Smell in Basement

    We bought a new (to us) house built in 1970 this summer and were excited to use the fireplace come winter. However, after using the fireplace 5 or 6 times, we've noticed our basement utility room directly beneath the fireplace gets an intense smoke smell about 15-45 minutes after lighting a...
  2. A

    Negative Pressure Draft - Better to Fix or Airtight Damper

    Hi there! I'm new to these forums, been looking through them the last few weeks, and I probably read every thread on negative pressure and backdrafting, but did not really see an answer to this question: Is it safe/OK to just put an airtight damper on the top of the chimney to stop backdrafting...