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Air Conditioners

The temperature inside your grow room is vital for healthy plant growth. You can use greenhouse heaters to raise the room temperature during the winter season, while summer calls for installing air conditioners to beat the heat produced by grow lights.

Which air conditioner is suitable for my grow room? 

The type of air conditioner depends on the grow room size and the climate you live in. Large rooms and hotter climates require more cooling, and the air conditioner’s type would change accordingly. If you are looking to cut down on energy costs, mini-splits can offer just that the AC’s offer 30% cost savings as they require no ductwork. 

You can find commercial-grade air conditioners for commercial growing and portable air conditioners for hobbyists at Groindoor.com

You can increase cooling efficiency in your grow room by coupling temperature controllers with your air conditioners. Other than that, you can also buy multi-function grow room controllers to pair with your air conditioning unit. 

Not sure how you can size your AC unit? Our guide to sizing air conditioners can equip you with all the knowledge you need. 

The optimal temperature for plants

Temperature is one of the most important environmental factors for plant growth. The ideal temperature varies according to the stage in which the plants are. Let’s look at the temperature requirements for the growth phase:  

 1.  Seed and clone stage: the ideal temperature is 75-80oF.  

 2.Veg stage: the plants do not require as much heat, and temperatures should range between 70-75oF.  

3.Flowering stage: The ideal temperature is  between 68-73oF. 

These temperature changes are a simulation of the outdoor growing season.  

You can use an air conditioner to keep temperatures under 80oF. To further simulate outdoor temperatures, you should regulate the temperature during day and night. It is ideal for keeping your lights-off period temperature 5-10 degrees lower than when they are on.  

What happens to plants when the temperature is too high? 

Plant growth slows down if the temperature in the grow room is too high. It also reduces the smell and potency of the buds during harvest. Furthermore, too much heat can lead to powdery mildew, spider mite infestations, nutrient burn, and root rot. 

The ideal root zone temperature for hydroponic systems is 65-70oF. When the temperature rises beyond this, it causes heat stress in the plants, depriving them of oxygen, ultimately slowing or halting growth. You can tackle this problem using hydroponic water chillers. 

Can I keep my grow room cool without an AC? 

You can tackle heat inside the grow room or grow tent without employing an air conditioner. Your best bet against fighting the heat in such a case is using fans and blowers, and lights with a low heat signature, such as fluorescent grow lights. 

Need help?  

Go to our learning center to find out more about controlling heat in the grow room. 

Our expert growers can help you create an environment that can maximize plant yield. Just give us a call at  866-GRO-INDR .

 

 

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  • Quest IQ Unitary HVAC Dry Cooler

    Quest IQ Unitary HVAC Dry Cooler

    QUEST IQ

    $17,886.59
    All Quest IQ Series products are in-stock and ready to ship from Hawthorne today. As a grower, you now have the ability to be up and growing with indoor gardening specific HVAC in as little as 2 weeks.
    $17,886.59
    Qty in Cart: 0
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    $17,886.59
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  • Quest IQ Unitary HVAC Compressor Wall Series - 36 Ton

    Quest IQ Unitary HVAC Compressor Wall Series - 36 Ton

    QUEST IQ

    $130,071.84
    All Quest IQ Series products are in-stock and ready to ship from Hawthorne today. As a grower, you now have the ability to be up and growing with indoor gardening specific HVAC in as little as 2 weeks.
    $130,071.84
    Qty in Cart: 0
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    $130,071.84
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  • Quest IQ Unitary HVAC Evolution Series - 16 Ton

    Quest IQ Unitary HVAC Evolution Series - 16 Ton

    QUEST IQ

    $55,594.44
    All Quest IQ Series products are in-stock and ready to ship from Hawthorne today. As a grower, you now have the ability to be up and growing with indoor gardening specific HVAC in as little as 2 weeks.
    $55,594.44
    Qty in Cart: 0
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    $55,594.44
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  • Ideal-Air Pro Series 36,000 BTU 16 SEER Heating & Cooling Mini Split Air Conditioner

    Ideal-Air Pro Series 36,000 BTU 16 SEER Heating & Cooling Mini Split Air Conditioner

    Ideal Air

    MSRP: $3,381.24
    $3,045.64
    Installation Type HVAC Professional Cooling Capacity 36,000 BTU Heating Capacity 36,000 BTU SEER Rating 16 SEER Voltage 208-230 Volts Line Set Included Yes Ideal Air Product Documents Ideal-Air Pro Series 16 SEER User Manual Ideal-Air Pro...
    MSRP: $3,381.24
    $3,045.64
    Qty in Cart: 0
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    MSRP: $3,381.24
    $3,045.64
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  • Ideal-Air Pro Series 24,000 BTU 16 SEER Heating & Cooling

    Ideal-Air Pro Series 24,000 BTU 16 SEER Heating & Cooling

    Ideal Air

    MSRP: $2,446.94
    $2,108.43
    Installation Type HVAC Professional Cooling Capacity 24,000 BTU Heating Capacity 24,000 BTU SEER Rating 16 SEER Voltage 208-230 Volts Line Set Included No Ideal Air Product Documents Ideal-Air Pro Series 16 SEER User Manual Ideal-Air Pro Series...
    MSRP: $2,446.94
    $2,108.43
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    MSRP: $2,446.94
    $2,108.43
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  • GREE Multi21+ 36,000 BTU 21 SEER Outdoor Unit 208-230V

    GREE Multi21+ 36,000 BTU 21 SEER Outdoor Unit 208-230V

    GREE

    MSRP: $4,265.99
    $3,327.47
    GREE Multi21+ 36,000 BTU 21 SEER Outdoor Unit, 208-230V This Mini Split Outdoor Unit by Gree offers multi-zone, ductless solution hot and cold seasons. Equipped with DC inverter technology, this outdoor unit provides quiet indoor cooling and features...
    MSRP: $4,265.99
    $3,327.47
    Qty in Cart: 0
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    MSRP: $4,265.99
    $3,327.47
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  • GREE VIREO+ULTRA HEAT 36,000 BTU Mini Split Set 208-230V

    GREE VIREO+ULTRA HEAT 36,000 BTU Mini Split Set 208-230V

    GREE

    MSRP: $5,468.99
    $4,265.81
    TW2436S - GREE VIREO+ULTRA HEAT 36,000 BTU Mini Split Set 208-230VKit / Bundle The 23 SEER VIREO+ Wall Mount units brings dramatic new performance and style to every room. Never before has it been so easy to maintain constant indoor comfort, no matter...
    MSRP: $5,468.99
    $4,265.81
    Qty in Cart: 0
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    MSRP: $5,468.99
    $4,265.81
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  • GREE LIVO Gen3 36000 BTU Mini Split w/ Heat Pump 208-230V

    GREE LIVO Gen3 36000 BTU Mini Split w/ Heat Pump 208-230V

    GREE

    MSRP: $3,282.99
    $3,112.97
    GREE LIVO Gen3 36,000 BTU 18 SEER Mini Split with Heat Pump 208-230V Kit, Bundle (GREE # LIVV36HP230V1A) The 18-SEER GREE LIVO Gen3 High Efficiency Ductless Mini-Split Heat Pump system is compact, quiet and comes in a variety of sizes to...
    MSRP: $3,282.99
    $3,112.97
    Qty in Cart: 0
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    MSRP: $3,282.99
    $3,112.97
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  • GREE LIVO Gen3 24000 BTU Mini Split w/ Heat Pump 208-230V

    GREE LIVO Gen3 24000 BTU Mini Split w/ Heat Pump 208-230V

    GREE

    $2,207.55
    GREE LIVO Gen3 24,000 BTU Mini Split with Heat Pump 208-230V Kit, Bundle (GREE # LIVV24HP230V1A) The 19-SEER GREE LIVO Gen3 High Efficiency Ductless Mini-Split Heat Pump system is compact, quiet and comes in a variety of sizes to...
    $2,207.55
    Qty in Cart: 0
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    $2,207.55
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  • GREE LIVO Gen3 12000 BTU Mini Split w/ Heat Pump 208-230V

    GREE LIVO Gen3 12000 BTU Mini Split w/ Heat Pump 208-230V

    GREE

    $1,277.63
    GREE LIVO Gen3 Mini Split System,  12000 BTU, 17 SEER, 208-230V (GREE # LIVV12HP230V1A) *A 3/8” line-set (sold separately) is required for installation – item code TW73825LThe 17-SEER GREE LIVO Gen3 High Efficiency Ductless Mini-Split w/ Heat...
    $1,277.63
    Qty in Cart: 0
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    $1,277.63
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  • GREE LIVO Gen3 24000 BTU 19 SEER Indoor Unit 208-230V

    GREE LIVO Gen3 24000 BTU 19 SEER Indoor Unit 208-230V

    GREE

    $828.09
    GREE LIVO Gen3 24000 BTU 19 SEER Indoor Unit 208-230V GREE LIVO Gen3 24,000 BTU 19 SEER Indoor Unit, 208-230V (GREE # LIVV24HP230V1AH) Slim, stylish and elegant, the new Livo Gen3 high wall units are the latest addition to the Gree comfort...
    $828.09
    Qty in Cart: 0
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    $828.09
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