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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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    • CommentAuthorGaryB
    • CommentTimeApr 7th 2013
    I came across this device on-line:


    It looks as though it is a PIR activated controller for switching off appliances, particularly entertainment devices in the living room.

    Anyone got one or seen one at any of the shows?

    Not expensive and gives a claimed 2 year payback. My only concerns are:

    1. As PIR controllers are movement activated, will they turn everything off if you just sit on the sofa and don't move for 5-10 minutes?
    2. The worst power user on standby is a Sky box. Our HD Plus box uses 15.5 Watts average on auto standby (really Sky, get your act together!), 21 Watts in use. Powering this unit down means no recording is available and you have to wait for it to reboot before anything can be watched. So it cannot really be connected, an opportunity for £20 per year in savings missed.
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