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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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    Hi all

    Had a Woodwarm wood stove installed 1st March this year. A few days after install we noticed some rust on the inside of the firebox. We (regrettably) didn't think too much of it at the time. However, when we went to stop sing for summer, and cleaned it out etc, we saw that the rust had got worse.

    We're in communications with the company we bought it from, but interested to get people's opinions and thoughts about it in the meantime.

    We've been burning seasoned ash wood only (no coal etc). There's no rust on the outside of the stove.

    Many thanks

    Here's some photos taken 3 days after install, with flash on so they are quite bright:
      IMG_20210304_140055420  Small.jpg
      IMG_20210304_140020549  Small.jpg
    • CommentAuthorgreenfinger
    • CommentTimeAug 15th 2021 edited
    And these were taken in June:
      IMG_20210630_140208522  Small.jpg
      IMG_20210630_142024984  Small.jpg
      IMG_20210630_140615055  Small.jpg
    It looks like surface rust.
    Unprotected steel will rust when it gets damp with condensation. A steel box can get condensation just from daily temperature and humidity changes.
    During the summer do you have the vents fully open (including the chimney if it has a damper)

    I would not expect to see rust on the outside as this will (probably) have better airflow around it than the inside and will also have a heat resistant paint or enamel as a decorative finish
    • CommentAuthortychwarel
    • CommentTimeAug 15th 2021
    perfectly normal
    Great - thanks for the replies. That's re-assuring to hear.

    Yes, we keep the vents open in summer, and the door slightly ajar sometimes too.

    • CommentAuthorCWatters
    • CommentTimeAug 20th 2021
    Got a rain cap/cowl on top of the chimney?
    • CommentAuthorjms452
    • CommentTimeAug 21st 2021
    Posted By: CWattersGot a rain cap/cowl on top of the chimney?

    I recommend a bird proof cowl.
    Oops - I missed these responses. My apologies. Great photo!

    Yes, it is a new installation and there is a cowl fitted.

    Thanks for all the help.
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