Open chimneys letting in cold air

Discussion in 'Builders' Talk' started by FixerUpper, Dec 27, 2019.

  1. FixerUpper

    FixerUpper New Member

    I've just moved into an older house and the previous owners have had the chimney bricked up at the fireplace opening and a vent is fitted to allow air to circulate. But the vent is letting in a lot of cold air.

    What are my options here? I've read up on the issues a bit and it seems like covering the vent up would be a bad idea - what are the alternatives to reducing the amount of heat loss?
  2. rogerk101

    rogerk101 Screwfix Select

    I have several chimneys which have been capped over, and have never experienced any problems as a result of this. In fact, I've never understood it when people say that you shouldn't do this. There are many unvented cavity walls in many houses which don't present any problems, and I think of a capped over chimney as just another unvented cavity.
  3. Astramax

    Astramax Super Member

    Fit a Hit & Miss vent so you can open and close it to suit the weather.
  4. Squashrobinson

    Squashrobinson Active Member

    Chimney sheep
    Grange Handyman and TheMorg like this.
  5. collectors

    collectors Member

    Unusual that a draft is coming in. 99% of the time a chiminy would be sucking the air out, even through a vent. Have a look for other area's. At worst, let off some smoke pelets to see where the drafts are.

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