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Greenhouse Exhaust Fan for Cooling System

Greenhouse exhaust fan is an important part of the greenhouse ventilation and heat dissipation system, its role can not only control the temperature, humidity, ventilation, etc., inside the greenhouse, but also help protect the growing environment . As a necessary cooling device for the greenhouse, we supply this energy saving exhaust fan.
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  • steel

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  • China

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VIDEO OF EXHAUST FAN

PRODUCT INTRODUCTION

The greenhouse exhaust fan is mainly used for cooling the greenhouse, and the indoor hot air is discharged through the principle of negative pressure. At the same time, the exhaust fan can also help eliminate harmful gases and odors in the greenhouse to ensure the air quality in the greenhouse

Greenhouse heavy hammer exhaust fan is an important part of the greenhouse ventilation and heat dissipation system, its role can not only control the temperature, humidity, ventilation, etc., inside the greenhouse, but also help protect the growing environment of crops and animals, improve production and quality. As a necessary cooling device for the greenhouse, we supply this energy saving heavy hammer exhaust fan for greenhouse ventilation system,our factory will give you good price and best after-sale service.


exhaust fan

1. Materials Used in Greenhouse Exhaust Fans

Frame and Blade Construction

Most fans feature galvanized steel or aluminum frames that resist rust and corrosion. The blades are often made from lightweight, durable materials like polypropylene or stainless steel to ensure high-speed, quiet operation.

Motor and Power Source

At the heart of every exhaust fan is a robust motor—usually single or three-phase, depending on size. For eco-conscious growers, solar-powered models are also gaining popularity.

Coatings and Weatherproofing Features

Exhaust fans are built to last, even in wet or humid conditions. Many have protective coatings, sealed motors, and rain-resistant louvers to ensure longevity.

exhaust fan

  THE WORKING PRINCIPLE   

1. How Greenhouse Exhaust Fans Work

Pulling Hot Air Out

When sunlight pours into a greenhouse, it heats the air rapidly. A quality exhaust fan kicks in to suck that hot air out, creating a low-pressure area inside the structure.

Air Exchange and Circulation Explained

Once the hot air is pushed out, cooler outside air is pulled in—usually through an intake vent or evaporative cooling pad system. This natural cycle helps maintain optimal temperature and CO₂ levels for photosynthesis.

Controlling Temperature and Humidity

Exhaust fans give you control. Whether you're growing tomatoes or tropical orchids, you can dial in just the right temperature and humidity levels, making your greenhouse smarter and more productive.

2. The cooling principle diagram

The greenhouse ventilation wall fan uses the principle of air convection to drive the blade fan to rotate through the motor to discharge the indoor air outdoors, thus forming negative pressure inside the greenhouse. Outdoor air enters the room under the action of pressure to achieve air circulation and renewal.

(1) Direct drive, no belts, provincial trim, maintenance-free.

(2) Four-point fixing bracket, motor fixed more firmly.

(3) machine with stainless steel screws, anti-corrosion, acid and alkali.

(4) Using the safety net, and to prevent foreign invasion, to increase security.

(5) Features a waterproof tank, fell into the hole to prevent water intrusion.

greenhouse exhaust fan

PARAMETERS -HEAVY HAMME EXHAUST FAN 

Specification GLT-900 GLT-1000 GLT-1100 GLT-1250 GLT-1400
Blade Dia. 900mm 1000 mm 1100mm 1250 mm 1400 mm
Power 0.55kw 0.75 kw 0.75kw 1.1 kw 1.5 kw
Voltage 380v/50Hz 380v/50Hz 380v/50Hz 380v/50Hz 380v/50Hz
Air Flow 30000m³h 35000m³h 40000m³h 44000m³h 55800m³h
Blade RPM 610r/min 600 r/min 460r/min 439 r/min 325 r/min
Blade Material Stainless Steel Stainless Steel Stainless Stee Stainless Steel Stainless Steel
Motor Type 3P,IP55/F 3P,IP55/F 3P,IP55/F 3P,IP55/F 3P,IP55/F
Dimension 1000*1000* 400mm 1100*1100* 400mm 1220*1220* 400mm 1380*1380* 400mm 1530*1530* 400mm
Frame
Material
galvanized galvanized galvanized galvanized galvanized
Shutters galvanized galvanized galvanized galvanized galvanized
Protective Net galvanized galvanized galvanized galvanized galvanized
M0Q 5sets 5sets 5sets 5sets 5sets
Packaging nude nude nude nude nude
Time of Delivery 7 days 7 days 7 days 7 days 7 days
Warranty
Period
12 months 12 months 12 months 12 months 12 months

CORE PARTS OF A GREENHOUSE EXHAUST FAN

exhaust fan

derstanding the core components of an exhaust fan can help in both the selection and maintenance of the fan

Motor

The motor powers the fan blades. Typically, motors in greenhouse exhaust fans are energy-efficient, designed to run for long periods without overheating.

Fan Blades

These are responsible for moving the air. The design and material of the blades affect the fan's efficiency.

Housing and Frame

The casing holds all the components together. The housing is usually made of durable material to protect against external elements.

ADVANTAGES OF USING A GREENHOUSE EXHAUST FAN

Climate Control Benefits

Want a steady 75°F environment in mid-July? Done. Exhaust fans help you control the interior climate down to the degree. No more overheated plants or fried seedlings.

Healthier Plant Growth

Consistent airflow means fewer disease outbreaks and better respiration for plants. That leads to stronger roots, larger yields, and healthier leaves.

Reduced Risk of Disease and Mold

High humidity is a breeding ground for mildew, blight, and bacterial diseases. Exhaust fans whisk away that moist air before it causes problems.

Energy Efficiency

Modern exhaust fans are incredibly energy-efficient—especially those with EC motors and variable speed settings. You get more bang for your buck and lower energy bills.


exhaust fan

greenhouse exhuast fan

exhaust fangreenhouse exhuast fan

exhaust fan

greenhouse exhuast fan

WHY SELECT OUR EXHAUST FAN

组合4

Energy saving and environmental protection

The greenhouse exhaust fan does not need to consume electricity, which can reduce the temperature and humidity inside the greenhouse, achieve the effect of reducing energy, while protecting the environment and reducing pollution.

Easy to use

The greenhouse exhaust fan does not need perennial maintenance, can be used for a long time, and the operation is simple, and can be controlled in real time by remote control or automatic controller.

Good ventilation effect

The greenhouse exhaust fan can discharge the hot air in the room while introducing fresh air, thus forming the ventilation effect and reducing the occurrence of crop diseases and pests.

Easy maintenance

The greenhouse exhaust fan is easy to maintain, and only needs regular cleaning and replacement of parts.


Maintenance Checklist  for Long-Term Use

Monthly Cleaning Tasks

  • Wipe down blades and housing

  • Clear dust from louvers

  • Check for any loose screws or mounts

Seasonal Inspection Guide

Before summer, inspect:

  • Wiring and connectors for damage

  • Thermostats and sensors for accuracy

  • Lubrication points on motors

Doing this prevents breakdowns when your plants need the most airflow.

Common Issues and Troubleshooting Tips

Fan Not Turning On

Check the power source, thermostat settings, or a tripped breaker. If everything seems fine, the motor might need servicing or replacement.

Unusual Noise or Vibration

Hearing grinding, rattling, or buzzing? Your fan blades may be misaligned or obstructed. Always turn off the power before attempting any fixes.

Airflow Seems Weak

Clogged louvers or dirty fan blades can block airflow. Give them a thorough cleaning. Also, double-check your intake vents—they must be clear and open for proper air exchange.

exhaust fan


FAQS OF GREENHOUSE EXHAUST FAN 

1. Is it better to use one large fan or multiple smaller ones?

Multiple fans can provide more even airflow, especially in larger spaces.

2. Can I use an exhaust fan year-round?

Yes, just adjust settings for different seasons to maintain optimal conditions.

3. What’s the energy consumption of a typical exhaust fan?

Anywhere from 100W to 1000W depending on size and type.

4. Do exhaust fans help with CO₂ levels?

Yes, they pull in fresh air, replenishing CO₂ needed for photosynthesis.

5. What safety features should I look for?

Overheat protection, waterproof housing, and grounded plugs are a must.

6. Can I connect my fan to my smart home system?

Definitely! Many models integrate with smart plugs, thermostats, and apps.




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