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Thread: Fans

  1. #1
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    Fans


    One particularly unconventional method championed by a New Zealand-based eco-warrior involves pointing an electric fan outside of your open bedroom window to keep cool at night.
    Nelson Lebo, an eco design adviser for Palmerston North city council in the South Pacific nation’s North Island, explains the clever fan trick works by blowing the warm air stagnating inside your property outwards, while pulling cooler air in.
    He explained the fan should be set up just after sunset, when the temperature outside becomes cooler than inside your home.




    Mr Lebo, who is originally from the US, said he learnt the trick from his grandmother who used it in New Jersey during the Seventies.
    “Everyone knows about cross ventilation,” he told The Telegraph, “but it only works when the wind is blowing and then it works best when there is a direct route for the wind to blow through a home.


    “What the fan does is, it forces cross ventilation, even when the wind is not blowing. A fan will also pull air around corners, as in our home.
    “The overall goal is to pull the warm air out while drawing cool air in once the outdoor temperature drops below the indoor temperature. Fans use hardly any power compared to AC.”




    Mr Lebo added that while pointing the fan outside the window may seem counterintuitive to some, it is a lot more effective than the standard method.
    “The standard way simply pushes warm air around the room but we perceive it as cooling because moving air feels cooler than still air,” he says.
    “My technique of forced cross ventilation actually cools indoor air down by drawing in air cooled for free by nature that is just outside from late afternoon onward.”



    It could be time to turn that fan around CREDIT: ROBERT DALY / OJO IMAGES RF

    He added: “Just make sure the bedroom windows are the ones with the air entering! The outward facing fan must be in the far end of the dwelling.”
    The UK enjoyed the hottest day of the year on Tuesday as temperatures peaked at 30.6C (87F), with the heatwave showing no signs of abating.


    Quote Originally Posted by Latindancer View Post
    I just want the chance to use a bigger porridge bowl.

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    Seems logical .

    Myself i tend to open windows on oposing sides of the building.

    If you could aford and have the space for a fountain plus fans you would see the temperature drop rapidly .

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    Quote Originally Posted by david44 View Post
    Nelson Lebo, an eco design adviser for Palmerston North city council in the South Pacific nation’s North Island, explains the clever fan trick works by blowing the warm air stagnating inside your property outwards, while pulling cooler air in.

    Mr Lebo, who is originally from the US, said he learnt the trick from his grandmother who used it in New Jersey during the Seventies.
    It's a fantastic trick (we can say a discovery), something like the discovery of America..

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    Whole house fans or attic fans are fairly common in the States. It is a large powerful fan that pushes/sucks hot air out of an whindow which than naturally draws cool air in to replace the exiting hot air. Sometimes they are installed in the ceiling and sometime install in the attic but always installed to move te hot air out so cool air can be drawn in. My grandparents had one in their attic in the 1970s - large and powerful and that kept temperatures in the day bearable and at night very comfortable.

    Fans-392b2a31-dee1-4bad-89aa-cda4a7670179-jpg
    Attached Thumbnails Attached Thumbnails Fans-d2b3856f-5cc3-4e71-add1-cc62c9de874c-jpg   Fans-392b2a31-dee1-4bad-89aa-cda4a7670179-jpg  

  5. #5
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    Most days in my Hebel house its cooler inside than out, at present 33 out , 24 in without cooling and in my Office with a fan 20-21 which is my choice, by sunset it'll be off as exterior still 25+ but interior 23ish until bedtime.

    By October I use a quilt/downer/sheer as wife likes a fan all night but she's hot a woman and runs almost entirely on cash and chillis with odd veggie.shrimp or new hobby eating my choclate digestives (in secret)

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    Quote Originally Posted by david44 View Post
    One particularly unconventional method championed by a New Zealand-based eco-warrior involves pointing an electric fan outside of your open bedroom window to keep cool at night.

    my granma did it. She wasn't a kiwi .

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    Quote Originally Posted by Joesixpac View Post
    Whole house fans or attic fans are fairly common in the States. It is a large powerful fan that pushes/sucks hot air out of an whindow which than naturally draws cool air in to replace the exiting hot air. Sometimes they are installed in the ceiling and sometime install in the attic
    I've only ever had one of those. It was in one of the homes we lived in in Texas. Did a damn good job too.


    As for the OP idea...a good fan always helps.


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    Open a window or three, allowing the fresh breeze.

    Problem solved.

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    put a cooler of ice in front of a fan...problem solved

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    Cellmate in Aus put frozen bottles of water behind our fan.


    Didn't have aircon.

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    Quote Originally Posted by uncle junior View Post
    put a cooler of ice in front of a fan...problem solved
    With beer in ice to drink if fan is ineffective - one problem solved but problem of hangover created!

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    Quote Originally Posted by Luigi View Post
    Cellmate in Aus put frozen bottles of water behind our fan.


    Didn't have aircon.
    Expect paragraphs.

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