{"product_id":"ext696744-tjernlund-underaire-v2d-crawl-space-ventilator","title":"Open-Box: Tjernlund UnderAire V2D Crawl Space Ventilator","description":"\u003cp\u003e\n  \u003cimg alt=\"this product was made in america\" src=\"https:\/\/assets.sylvane.com\/media\/images\/products\/USA.jpg\" style=\"float: right; width: 20%;\"\u003eRemove\n  moisture\n  and\n  avoid\n  the\n  musty,\n  stagnant\n  air\n  associated\n  with\n  many\n  basements\n  and\n  crawlspaces\n  with\n  the\n  Tjernlund\n  V2D.\n  Adding\n  this\n  fan-powered\n  crawlspace\n  ventilator\n  will\n  increase\n  ventilation\n  and vent\n  out various\n  unwanted\n  items\n  like\n  radon,\n  off-gassing\n  and\n  odors\n  to\n  keep\n  them\n  out\n  of\n  your\n  main\n  living\n  space.\n\u003c\/p\u003e\n\n\u003ch2\u003e\n  Protect\n  Your\n  Home\n  \u0026amp;\n  Your\n  Family\n\u003c\/h2\u003e\n\n\u003cp\u003e\n  Air\n  quality\n  starts\n  from\n  the\n  ground\n  up,\n  so\n  ventilating\n  your\n  crawlspace\n  and\n  basement\n  is\n  important\n  to\n  your\n  overall\n  air\n  quality.\n  When\n  you\n  install\n  this\n  ventilator,\n  two\n  fans\n  and\n  a\n  large\n  faceplate\n  attach\n  to\n  a\n  vent\n  to\n  push\n  musty\n  air\n  out\n  of\n  your\n  space.\n  It\n  can\n  be\n  installed\n  in\n  pre-existing\n  vents\n  in\n  your\n  crawlspace\n  and\n  includes\n  a\n  thermostat\n  and\n  dehumidistat\n  so\n  you\n  can\n  check\n  your\n  air\n  quality\n  at\n  anytime.\n  Damaging\n  moist\n  air\n  will\n  be\n  pushed\n  out\n  of\n  your\n  crawlspace\n  through\n  a\n  rugged\n  outdoor\n  hood. \n\u003c\/p\u003e\n\n\u003cp\u003e\n  At\n  an\n  affordable\n  price\n  point,\n  you\n  can\n  avoid\n  dangerous\n  indoor\n  air\n  issues\n  from\n  damaging\n  your\n  home’s\n  interior\n  and\n  negatively\n  influencing\n  your\n  health.\n\u003c\/p\u003e\n\n\u003ch2\u003e\n  \u003cimg alt=\"tjernlund fan airflow\" src=\"https:\/\/assets.sylvane.com\/media\/images\/products\/tjernlund-crawl-space-ventilator-airflow.jpg?w=657\" style=\"float: right; width: 50%;\"\u003eHow\n  it\n  Works\n\u003c\/h2\u003e\n\n\u003cp\u003e\n  Use\n  the\n  on-board\n  dehumidistat\n  to\n  set\n  your\n  ideal\n  humidity\n  level\n  in\n  your\n  crawl\n  space.\n  In\n  addition\n  to\n  turning\n  the\n  unit on\n  or\n  off,\n  you\n  can\n  select\n  your\n  humidity\n  between\n  20%\n  and\n  80%.\n  Once\n  the\n  humidity\n  falls\n  below\n  your\n  set\n  level,\n  the\n  fan\n  automatically\n  turns\n  off\n  and\n  then\n  will\n  turn\n  back\n  on\n  once\n  the\n  humidity\n  level\n  rises\n  above\n  that\n  set\n  mark.\n\u003c\/p\u003e\n\n\u003ch2\u003e\n  Installation\n\u003c\/h2\u003e\n\n\u003cp\u003e\n  You\n  can\n  install\n  this\n  American-made\n  product\n  anywhere\n  within\n  6\n  feet\n  of\n  a\n  standard\n  outlet.\n  It’s\n  designed\n  to\n  be\n  placed\n  directly\n  behind\n  standard\n  vent\n  openings.\n  The\n  power\n  cord\n  is\n  included\n  with\n  purchase,\n  and\n  the\n  dimensions\n  are\n  18\n  x\n  9\n  x\n  2\n  inches\n  (L\n  x\n  H\n  x\n  W).\n\u003c\/p\u003e\n\n\u003ch2\u003e\n  How\n  Many\n  Does\n  Your\n  Crawlspace\n  Need?\n\u003c\/h2\u003e\n\n\u003cp\u003e\n  If\n  you\n  have\n  a\n  large\n  crawl\n  space,\n  you\n  may\n  need\n  more\n  than\n  one\n  Tjernlund\n  UnderAire\n  V2D\n  Crawl\n  Space\n  Ventilator.\n  To\n  determine\n  this,\n  Tjernlund\n  suggests\n  you\n  find\n  out\n  how\n  much\n  CFM\n  you\n  need.\n  Each\n  model\n  provides\n  up\n  to\n  220\n  CFM.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  To\n  determine\n  what\n  CFM\n  your\n  space\n  requires,\n  follow\n  this\n  formula:\n  Multiply\n  the\n  square\n  footage\n  by\n  the\n  height\n  (to\n  get\n  the\n  cubic\n  feet)\n  and\n  then\n  divide\n  that\n  number\n  by\n  15.\n  This\n  gives\n  the\n  amount\n  of\n  CFM\n  you\n  need\n  to\n  properly\n  ventilate\n  your\n  space.\n\u003c\/p\u003e\n\n\u003ch2\u003e\n  Additional\n  Features\n\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003e\n    Fan\n    Performance\u003c\/strong\u003e:\n    The\n    powerful\n    fans\n    offer\n    220\n    CFM\n    of\n    air\n    movement,\n    making\n    it\n    Tjernlund's most\n    powerful\n    crawlspace\n    fan\n    in\n    their\n    line.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003e\n    Freeze\n    Protection\n    Thermostat\u003c\/strong\u003e:\n    Freeze\n    protection\n    turns\n    on\n    to\n    protect\n    this\n    model\n    from\n    freezing\n    when\n    the\n    temperature\n    hits\n    40\n    degrees. The\n    thermostat\n    won't\n    allow\n    this\n    model\n    to\n    work\n    under\n    40\n    degrees\n    F\n    and\n    will\n    cut\n    on\n    operation\n    at\n    50\n    degrees\n    F. \n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003e\n    Dehumidistat\u003c\/strong\u003e:\n    You\n    can\n    turn\n    the\n    humidistat\n    on\n    or\n    off\n    and\n    also\n    set\n    it\n    from\n    20\n    -\n    80%\n    relative\n    humidity.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003e\n    Removable\n    Screen\u003c\/strong\u003e: A\n    screen\n    attaches\n    to\n    the\n    outdoor\n    hood\n    to\n    avoid\n    bugs\n    and\n    other\n    irritants\n    from\n    entering\n    your\n    crawlspace. \n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp class=\"tab_header\"\u003e\n  Summary\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Air\n  quality\n  starts\n  in\n  your\n  crawlspace,\n  and\n  this\n  model\n  avoids\n  moist,\n  stagnant\n  air\n  from\n  taking\n  over\n  the\n  base\n  of\n  your\n  home.\n\u003c\/p\u003e\n\n\u003ch2\u003e\n  What\n  Customers\n  Love\n\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003e\n    Automatic\n    Control:\u003c\/strong\u003e\n    Out\n    of\n    sight,\n    out\n    of\n    mind.\n    Set\n    your\n    dehumidistat\n    and\n    the\n    V2D\n    will\n    only\n    run\n    when\n    needed.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003e\n    Made\n    in\n    America\u003c\/strong\u003e:\n    Manufactured\n    in\n    America,\n    this\n    is\n    a\n    trusted\n    product\n    with\n    long\n    warranty.\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\n  Things\n  to\n  Consider\n\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003e\n    Crawlspace\n    Size\u003c\/strong\u003e:\n    Depending\n    on\n    how\n    large\n    your\n    space\n    is,\n    consider\n    adding\n    a\n    second\n    one\n    to\n    provide\n    enough\n    CFM\n    to\n    move\n    the\n    air\n    properly.\n  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tjernlund","offers":[{"title":"Acceptable","offer_id":42359117643862,"sku":"bstock-tj7361A","price":165.0,"currency_code":"USD","in_stock":false},{"title":"Good","offer_id":42359494738006,"sku":"bstock-tj7361G","price":165.0,"currency_code":"USD","in_stock":false},{"title":"Like New","offer_id":42359494770774,"sku":"bstock-tj7361N","price":165.0,"currency_code":"USD","in_stock":false},{"title":"Very Good","offer_id":42359494803542,"sku":"bstock-tj7361V","price":165.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/7135\/4966\/files\/tjernlund-underaire-v2d-crawl-space-ventilator-main_4e1c8ab9-e325-4c10-8b8b-c8734d5e7aa4.png?v=1753128596","url":"https:\/\/www.sylvane.com\/products\/ext696744-tjernlund-underaire-v2d-crawl-space-ventilator","provider":"Sylvane","version":"1.0","type":"link"}