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    Greenhouse Catalog Blog

    Fertilizers and Foods for Greenhouse Plants
    Since greenhouse plants lack the natural benefits of uninhibited sun, soil, and rain, special fertil...

    Tips for Transplanting Your Starts from the Greenhouse
    It?s that time of year to begin transplanting your starts from the greenhouse. Greenhouses are great...

    Greenhouse business venture in Idaho
    I love to hear stories about how a family puts a greenhouse to use. This family bought a large green...

    Garden Art & Festival Time
    High Tailing It to Fun Who said the economy is hurting? Friday morning vendors reported a line of pe...

    Summer Sunflower Growth Update
    Container Planted Sunflowers Raising Their Heads Towards the Sun I planted dwarf ?Junior? in the So...

    Start Flowers in the Garden Greenhouse
    ?The Earth laughs in flowers.?~ Ralph Waldo Emerson Getting flowers going in the garden greenhouse i...

    Building Soil Tampers
    Tamp Dancing I rented Martha Stewart?s Spring Gardening Series from the local video store for tips a...

    Greenhouse Ventilation - Keeping the Greenhouse Cool
    When looking for greenhouse ventilation options to keep greenhouses cool, it?s important to first un...

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    Greenhouse Exhaust Fan Calculator

    All greenhouses need good ventilation to successfully grow plants and cuttings. How much is enough? Use our JavaScript Greenhouse Ventilation CFM Calculator below to find out what size fan you need in your greenhouse to promote healthy growth. Exhaust fans or ventilation fans are rated on how much air is moved in CFM (Cubic Feet per Minute).

    Use the JavaScript Greenhouse Exhaust Fan CFM Calculator to determine your needs:

    JavaScript Greenhouse Exhaust Fan CFM Calculator
    Do This
    JavaScript Calculator
    		 Example
    Measure the height of your greenhouse.
    		You measured a floor to ceiling height of 8 feet.
    Determine the width of your greenhouse.
    		You measured the width at 8 feet.
    Find out the length.
    		You enjoy a medium sized greenhouse, measuring 16 feet long.
    Multiply the height by the width by the length.
    		Your greenhouse measurements were 8'H, 8'W, and 16'L.
    Look for this minimum ventilation fan CFM rating to keep your greenhouse healthy year round.
    		8'H x 8'W x 16'L = 1024 cfm
    This is the optimum ventilation fan CFM rating many growers use.
    		8'H x 8'W x 16'L x 1.5 = 1536 cfm

    Our 12" Exhaust Fan provides 760 CFM. We can also special order larger fans. A 16" fan is rated at 1,250 CFM, and a 20" fan is rated at 3,000 CFM.
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    Testimonials more
    I must be doing something right. Everything is going crazy in my greenhouse. I’m picking cucumbers...
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    Elvin, Klawock, AK
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