{"product_id":"roof-or-exhaust-fans","title":"Roof or Exhaust Fans","description":"\u003cdiv class=\"powr-popup\" id=\"5f531961_1731617107\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"d84e758f_1608244258\" class=\"powr-popup\"\u003e \u003c\/div\u003e \u003cp\u003e\u003cstrong\u003eGreenhouse roof fans\u003c\/strong\u003e are one of the most efficient and cost effective ways to cool a greenhouse. They are best positioned at the apex, as this is where the rising hot air accumulates and are most effective when there is an inlet of cool air from ground level (i.e. louvres\/open doorways or axial fan intakes).\u003c\/p\u003e \u003cp\u003eAll fans are NZ made. We are able to custom make mounting attachments to suit most greenhouses.\u003c\/p\u003e \u003cp\u003eFor an optimum climate of most greenhouses require an air change of 30 – 60 times per hour on a hot day. The Roof Fans have a high air capacity and are a great way to assure that you refresh the air in your greenhouse frequently.\u003c\/p\u003e \u003cp\u003eRoof fans move and refresh the stagnant air in your greenhouse or building, creating a healthier and more productive growing environment and reducing plant and worker heat stress. Our roof fans provide excellent ventilation for high tunnels and cold frames. Not only will roof fans create a cooler more comfortable growing environment, they will also directly contribute to productivity, quality and profitability for your greenhouse business. Roof fans also works great in workshops and buildings.\u003c\/p\u003e \u003cp\u003eIf you are wondering what sizes\/how many fans to get for your structure, please email us at \u003ca href=\"mailto:admin@wintergardenz.co.nz\"\u003eadmin@wintergardenz.co.nz\u003c\/a\u003e with your size\/type of structure, required extract capacity (how much airflow in cubic meters\/second) and we will come back to you with a quote on what size\/quantity fans will best suit your project. \u003c\/p\u003e","brand":"wintergardenz.co.nz","offers":[{"title":"-","offer_id":52821215019330,"sku":"EXHAUSTFANS","price":785.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/3602\/6434\/files\/roof-or-exhaust-fans__44164.1629146843.1280.1280.jpg?v=1774848542","url":"https:\/\/ghco.co.nz\/products\/roof-or-exhaust-fans","provider":"The Greenhouse Company","version":"1.0","type":"link"}