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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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General: Telegraph Article - Eco rebuild

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  1.  
    • CommentAuthorborpin
    • CommentTime1 day ago edited
     
    Not sure if this link will work, but this is a really good looking house IMHO.

    https://www.telegraph.co.uk/gift/c79c96400f3a8bff
    https://www.telegraph.co.uk/money/net-zero/i-spent-900000-creating-the-ultimate-eco-home/

    One thing I noted is that he is funneling his MVHR extract into a 'cupboard' around the Heatpump. That sounds like an excellent idea.
  2.  
    It's equivalent to an Exhaust Air Heatpump (EAHP) which seemed like an excellent idea but didn't catch on.

    Issues were that (for most homes, except super insulated ones like this one) the energy loss in the MHRV extract air is only part of the energy requirements of the home, as there are other fabric losses. So a heatpump running only on MHRV extract air will not recover enough heat without backup direct electric heating.

    In this case he maybe hasn't realised that the MHRV extract air carries all the damp out of the house, so is liable to ice up the heatpump.

    Seems like he has enough funding that he doesn't need to listen to others' experience though! If it doesn't work out he can afford to fix it. Sometimes that helps for trying new things out!
  3.  
    and here we are with a budget less than one tenth of his. His plant room alone has more in it than our entire budget. Perhaps not such a headline story though.
    • CommentAuthorborpin
    • CommentTime1 hour ago edited
     
    Posted By: WillInAberdeenIt's equivalent to an Exhaust Air Heatpump (EAHP) which seemed like an excellent idea but didn't catch on.
    I think he is just using the warmer air to reduce the need for defrosts when cold.
    Posted By: WillInAberdeenIn this case he maybe hasn't realised that the MHRV extract air carries all the damp out of the house, so is liable to ice up the heatpump.
    Ah, true.

    I wonder what the physics says on that.

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