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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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    • CommentAuthorryanp
    • CommentTimeFeb 11th 2020
     
    Could someone tell me if the combination of an ASHP and a wood burner with a back boiler feeding into a thermal store tank will work? The tank will then supply hot water and heating for our house which will have a combination of UFH and radiators.
    I have had conflicting info off of installers with some saying it will work and others saying not. Your comments are welcome.
    • CommentAuthorGreenPaddy
    • CommentTimeFeb 11th 2020
     
    Yes it can work. Have done it a few times, but you have to be very careful about thermal store design and controls.
    • CommentAuthorryanp
    • CommentTimeFeb 11th 2020
     
    Ok thanks greenpaddy. What are the problems associated with this type of setup? Any chance to pm you and chat about it?
    • CommentAuthorGreenPaddy
    • CommentTimeFeb 11th 2020
     
    Main thing is to consider the thermal store as a buffer for the ASHP and also a hot water cyl for DHW, and try to encourage separation of those two activities. My email is on my here if you prefer to PM.
    • CommentAuthordereke
    • CommentTimeFeb 11th 2020
     
    I have this setup. Mine is a bit of a hodge podge though.
    The previous owner of this house had the thermal store, wood burner and oil boiler installed.

    I've since replaced the oil boiler with a cheap DIY install heatpump. The controls leave something to be desired but with a bit of babysitting it does the job. I hope to replace the controls at some point but for my particular heatpump that is not so straightforward.

    The issues I have with the system are that if someone wants a shower I need to manually crank up the output of the ASHP around 30-45mins before hand (depending on outside temp) so that it can get up to temperature. I also have to make sure the central heating is not running otherwise the heat goes into the house and the store doesn't get up to an adequate temperature.

    On especially cold days or when a bath is required we light the wood burner as this gives us plenty of hot water for both CH and baths.

    Lastly I still have lots more insulating and draft proofing work to do on the house so I'm confident that it will improve over time.

    Despite it's shortcomings I am pretty happy with our system. If you can get a properly designed and integrated system I am sure it will work well for you.
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