{"id":147,"date":"2009-02-05T17:22:00","date_gmt":"2009-02-05T07:22:00","guid":{"rendered":"http:\/\/blog.dbohs.com\/?p=147"},"modified":"2009-02-05T18:22:45","modified_gmt":"2009-02-05T08:22:45","slug":"whole-house-fans","status":"publish","type":"post","link":"https:\/\/blog.dbohs.com\/?p=147","title":{"rendered":"Whole House Fans"},"content":{"rendered":"

Whole House fans have been around for over 40 years and offer a way to make a dramatic<\/em> (I seldom use this word) difference to the comfort of a house in a warm climate. It does three things.<\/p>\n

A large, slow moving fan is put in the ceiling of a house, usually near the centre or at the top of a flight of stairs.<\/p>\n

    \n
  1. The fan removes a layer of warm air about 50 cm thick next to the ceiling. I have done smoke tests and the layer even moves over doorways.<\/li>\n
  2. This air displaces even hotter air in the roof space and is usually exhausted though vents in the eaves off set from the windows.<\/li>\n
  3. The air sucked out of the house creates airflows at every window, even on a still night.<\/li>\n<\/ol>\n

    The temperature in the roof space drops to near the outside air temperature \u2013 and you don\u2019t need insulation.<\/p>\n

      <\/ol>\n

      The downside is that the fan does cost to run, but as it is not pumping heat like an air conditioner, the running cost is quite low.<\/p>\n

      The old \u201cQueenslander\u201d house design had high ceilings and vents in the roof, making them naturally a lot cooler than the modern dog boxes. But they need a lot of paint and maintenance, being made of wood.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Whole House fans have been around for over 40 years and offer a way to make a dramatic<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[13,28],"tags":[63,246,249],"class_list":{"0":"post-147","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-industrial-ventilation","7":"category-uv","8":"tag-fans","9":"tag-heat-stress","10":"tag-industrial-ventilation","11":"czr-hentry"},"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=\/wp\/v2\/posts\/147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=147"}],"version-history":[{"count":8,"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=\/wp\/v2\/posts\/147\/revisions"}],"predecessor-version":[{"id":162,"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=\/wp\/v2\/posts\/147\/revisions\/162"}],"wp:attachment":[{"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.dbohs.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}