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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.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

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    • CommentAuthorandyman99
    • CommentTimeApr 28th 2018 edited
     
    I’m in the process of opening up a fireplace, trying to get it back to a reasonable opening ready for HETAS engineer to instal a wood burning stove. This is the opening with the original fireplace surround removed.I’ve taken out the side and rear filling mess and from the from the front it looks about the right sized opening for us. However looking up the chimney, there is a (further) right old mess of rubble, loosely mortared together to the right and left of the flue. The second picture shows it as best I can manage, you can just see the top brick of my new supporting pillar.
    I’ve explored the chimney breast further and think I’ve now found the original builders opening lintel some way higher up, it can just be seen running through the highest slot on picture 3 and expanded on the last picture. It appears that a concrete flue has been created in situ (guess work on my behalf) and afterwards they decided to fill up space to the sides by tossing a load of rubble in. The HETAS engineer can cover the whole lot up with a register plate, but I'm not happy about this large void semi filled with loose rubble?
      FP_Before.JPG
      rubble_up.JPG
      Slits2.JPG
      Lintel.JPG
    • CommentAuthortony
    • CommentTimeApr 28th 2018
     
    Nice, you can put in a new lintel at whatever height you like now, 100mm bearing each side will be more than enough.
    • CommentAuthorandyman99
    • CommentTimeApr 28th 2018
     
    Yes its a bit neater and I managed to get 200mm EPS under the constructional hearth, so improvement there. Any ideas about the rubbish to the sides of the flue?
    • CommentAuthortony
    • CommentTimeApr 29th 2018
     
    Might be OK. You will need to fit a liner and register plate so will all get sealed up later
    • CommentAuthorKenny_M
    • CommentTimeApr 30th 2018
     
    I've used some vermiculite cement to fill a void above my lintel, although its not that easy to get it stick from below, if its not a structural concern. I also used rockwool slab above a register plate before as this is also A1 fire rated.
    • CommentAuthorandyman99
    • CommentTimeApr 30th 2018 edited
     
    Posted By: Kenny_MI also used rockwool slab above a register plate before as this is also A1 fire rated.


    Good idea! I have some and now see that it does say that on the packaging, thanks. HETAS engineer coming tomorrow, so I'll check he's OK with that, but it should fill the void and prevent falling debris in the future
    • CommentAuthorKenny_M
    • CommentTimeMay 3rd 2018
     
    This site is pretty good. He shows you how to fit the stove yourself and just get building control signoff. He is obviously using it to attract people to his stove selling operation, but that's fair enough.

    http://www.stovefittersmanual.co.uk/

    I didn't fit my stove in the last house, but I fitted rockwool slabs behind hardiebacker cement board at the back of the stove to insulate so I had checked out that both were A1 fireproof first. Made a huge difference to the temperature measured on the outside of the wall after it was fitted. A lot of people fit a metal plate behind the stove, with a gap between the plate and the wall. As most of the heat here is radiated the metal reflects this back towards the room - A stove fan is also good for keeping the wall behind the stove cooler by drawing air from behind the stove.

    When I get round to it I plan to fit the stove myself in this house, (liner already in) using cement board to box out the opening with rockwool or maybe loose vermiculate insulation behind, and the hardiebacker can also be used to make the register/closure plate. HETAS or building control not required here in Scotland, and the regs are slightly different, but obviously still need to make sure the regs are adhered to, even though no-one will actually be signing it off.
    • CommentAuthorandyman99
    • CommentTimeMay 3rd 2018
     
    Yes I've seen that site, quite useful. The fitter came back to take a look, he wasn't surprised at what he found and broke up a lot of the "mess" with an SDS drill and chisel. My assumption that an inner flue was cast in-situ seems about right. He agreed that using rockwool was a good idea and will fit some for me when he actually instals the WBS. Will look into a fan, they are cheaper now then when I first looked some years ago.
    • CommentAuthorsnyggapa
    • CommentTimeMay 4th 2018
     
    I picked up a stove-top fan from aldi for twelve quid last week, in the "graveyard" end of the aisle where stuff gets reduced

    I guess the selling season for WBS fans has just passed so they need to shift them or store them...
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