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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.

Buy individually or both books together. Delivery is free!

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    Anybody running a 12 a tube Vaillant Solar Thermal system (or similar system), Hertfordshire / Essex area. What KWh are you producing?
    • CommentAuthorjohnuready
    • CommentTimeOct 20th 2013
    Anybody with KWh data from a small Solar Thermal setup anywhere i the UK, I would like to gauge how my Vaillant system is performing.
    Well, I've got a 21 tube Kloben panel feeding into 250Litre megaflow, in MIddlesex, If thats any help.
    But I dont have any kWH data, only tank temperatures from when I could be bothered to measure it - a couple of ears ago
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