Circulation Fans For Poultry House PDF Reviews & Types

Proper ventilation and air circulation are crucial for maintaining a healthy environment in poultry houses. Poultry naturally produces a lot of moisture, heat, and ammonia through their excreta, respiration, and metabolism. Without adequate ventilation, these byproducts can build up and cause respiratory problems, bacterial infections, and heat stress in the birds, leading to reduced productivity and increased mortality.

This blog post will explore circulation fans for poultry house. We’ll also answer related questions, and provide relevant pieces of information on the types of circulation fans for poultry house available.

Circulation fans are a popular solution to improve air quality by distributing fresh air evenly throughout the poultry house, removing excess heat and moisture, and reducing the concentration of harmful gases. This not only benefits the birds’ health and welfare but also increases their growth rate, feed efficiency, and egg production. Proper ventilation and air circulation are essential for the overall success of a poultry farm, and circulation fans play a significant role in achieving these goals.

What are circulation fans for poultry houses?

Circulation fans, also known as air movers, are mechanical devices designed to improve air circulation in poultry houses. They are typically installed in strategic locations, such as above the litter, to create a gentle, uniform airflow that mixes and distributes the air inside the house. This helps to reduce hot spots, humidity, and ammonia levels, which can lead to respiratory diseases and heat stress in the birds.

Circulation fans work by creating a horizontal airflow that moves air from one side of the house to the other, rather than directing air straight down onto the birds. This creates a more natural and comfortable environment for the birds, as it mimics the gentle breezes they would experience outdoors. The airflow also helps to evaporate moisture from the litter and the birds’ bodies, reducing humidity and improving litter quality.

The benefits of having circulation fans in poultry houses include; improved air quality, reduced heat stress, better litter quality, and increased productivity. They also help to reduce energy costs by improving the efficiency of heating and cooling systems in poultry houses.

There are several popular brands and models of circulation fans available in the market. These include; Vostermans, Schaefer, Multifan, and J&D Manufacturing. These fans vary in size, capacity, and features, such as variable speed control, corrosion resistance, and energy efficiency. It is important to choose a fan that is appropriate for the size and layout of your poultry house, as well as your specific ventilation needs.

Types of ventilation in the poultry house

There are three main types of ventilation in poultry houses: natural, mechanical, and hybrid ventilation. Each has its benefits and drawbacks, and the choice of which system to use depends on factors such as the size and layout of the house, the climate, and the number of birds being housed.

Natural ventilation relies on natural airflow through openings such as doors, windows, and vents. It is a simple and cost-effective option that can be effective in mild climates or during periods of low bird density. The benefits of natural ventilation include; low energy costs and the potential for improved air quality. However, it is less effective in extreme weather conditions and may not provide sufficient air exchange in larger poultry houses.

Circulation Fans For Poultry House
Natural ventilation for poultry house

Mechanical ventilation uses fans and ductwork to create and distribute airflow within poultry houses. It provides more control over the environment by allowing precise temperature and humidity regulation. It is also effective in larger houses or in areas with extreme weather conditions. However, mechanical ventilation can be expensive to install and maintain, and the use of fans creates noises and vibrations.

Circulation Fans For Poultry House
Mechanical ventilation for poultry house

Hybrid ventilation combines elements of both natural and mechanical ventilation to provide a more energy-efficient and cost-effective solution. For example, it may use natural ventilation during mild weather conditions and switch to mechanical ventilation during extreme weather conditions or periods of high bird density.

Circulation fans are typically used in conjunction with mechanical or hybrid ventilation systems. They help to improve air quality and reduce hot spots throughout the poultry house by creating a gentle, and uniform airflow. Circulation fans are also effective in reducing energy costs and improving ventilation efficiency.

Tunnel ventilation in poultry houses

Tunnel ventilation is a type of mechanical ventilation system that is commonly used in large poultry houses. It functions by drawing in outside air through one end of the house and then pushing it through the house using fans at the other end. This creates a “tunnel” of airflow that moves down the length of the house and creates a uniform and comfortable environment for the birds.

Compared to other types of ventilation, such as natural or cross ventilation, tunnel ventilation offers several benefits. It provides a high rate of air exchange in the poultry house, which helps to maintain good air quality and reduce the risk of respiratory diseases in the birds. It also provides better temperature control and helps to reduce heat stress among birds during hot weather.

Circulation fans can complement the tunnel ventilation system by improving the distribution of air throughout the house. By placing circulation fans strategically along the length of the house, the airflow can be evenly distributed and any hot spots or areas of poor air quality can be eliminated. This helps to maintain a comfortable and healthy environment for the birds.

Examples of successful implementations of tunnel ventilation with circulation fans.

Successful implementations of tunnel ventilation with circulation fans have been reported in several studies. An example includes; a study published in the Journal of Applied Poultry Research that found that the use of tunnel ventilation with circulation fans in a broiler house resulted in improved litter quality and reduced ammonia levels, as well as increased weight gain and feed conversion. Another study published in Poultry Science found that the use of circulation fans in a tunnel ventilation system for laying hens resulted in improved air quality and reduced mortality rates.

Poultry house ventilation calculation

Calculating the required ventilation rate for a poultry house is important to ensure that the birds have a healthy and comfortable environment. Ventilation helps to remove excess moisture, ammonia, and other gases from the air and provides fresh air to the birds. Without adequate ventilation, the air quality can deteriorate, leading to respiratory problems, reduced productivity, and increased mortality rates among birds.

Factors that can affect the ventilation rate in poultry houses include; temperature, humidity, bird density, feed consumption, litter moisture, and the presence of respiratory diseases. In hot weather, for example, the ventilation rate may need to be increased to prevent heat stress, while in cold weather, the ventilation rate may need to be reduced to maintain a comfortable temperature.

Circulation fans can help achieve the required ventilation rate by improving the distribution of air throughout the poultry house, ensuring that all areas receive adequate ventilation.

Poultry house fans for sale

There are many different models of circulation fans available in the market each with varying features, performance, and prices. Some popular brands and models include:

Vostermans Multifan: Vostermans is a leading manufacturer of ventilation products for the agriculture industry, including poultry house fans. Their Multifan line of circulation fans is designed for efficient and effective air movement, with options for different blade sizes and motor speeds. They are known for their durability and reliability. Prices for Vostermans Multifan start around $200 and go up to $500 depending on the size and features.

J&D Manufacturing: J&D Manufacturing offers a range of circulation fans for poultry houses, including their V-Flo line, which is designed for high-volume air movement. These fans are energy-efficient and feature galvanized steel housing for durability. Prices for J&D Manufacturing fans range from $150  to $400 depending on the size and features.

Schaefer Ventilation: Schaefer Ventilation has a variety of circulation fans for chicken coops, like their Poultry House Fan line, which is made to move and cool air efficiently. These fans feature durable aluminum housing and high-efficiency motors for energy savings. Prices for Schaefer Ventilation fans start around $200 and go up to $500 depending on the size and features.

Reliable sellers of poultry house fans include companies such as QC Supply, FarmTek, and Agri-Products. It is also recommended to consult with a professional poultry house ventilation specialist to ensure that the circulation fan is properly sized and installed for optimal performance.

Poultry house ventilation guide PDF

This guide is produced by the Cooperative Extension System, a collaboration between the U.S. Department of Agriculture (USDA), state land-grant universities, and county governments. It provides detailed information on the importance of ventilation in poultry houses, the different types of ventilation systems, and how to properly size and install ventilation systems, including circulation fans.

The guide includes practical advice and tips for managing ventilation in poultry houses, as well as case studies and examples of successful ventilation systems. It also discusses common ventilation problems and how to troubleshoot and correct them.


How do you cool a poultry house?

There are several ways to cool a poultry house. These include; using evaporative cooling pads, misting systems, or fans. A combination of these methods is often used. Circulation fans can help in distributing cool air throughout the house.

What is the ideal temperature for a poultry house?

The ideal temperature for poultry varies depending on the age and type of bird. For example, broiler chickens require temperatures of 85-90°F during the first week of life, while layer hens require temperatures of 60-65°F.

How do you ventilate a poultry house?

Ventilation in a poultry house can be achieved through natural or mechanical means. Natural ventilation uses openings such as windows, doors, or vents, while mechanical ventilation uses fans and ductwork. A combination of both methods may be used for optimal results.

How do you prevent heat stress in chickens?

Heat stress in chickens can be prevented by ensuring adequate ventilation and air movement, providing cool drinking water, reducing stocking density, and providing shade or cooling systems. Circulation fans can help in maintaining a comfortable temperature and reducing heat stress.

What are the signs of heat stress in chickens?

Signs of heat stress in chickens include panting, increased water consumption, reduced feed intake, and lethargy. Severe heat stress can lead to dehydration, heat stroke, or death.


Maintaining a healthy environment in the poultry house requires proper ventilation and air circulation. Inadequate ventilation can cause poor air quality, elevated ammonia, and carbon dioxide levels, and heat stress among birds. This may lead to reduced productivity and increased mortality rates.

Investing in high-quality circulation fans and following best practices for poultry house ventilation can help ensure the health and well-being of your birds, as well as maximize your farm’s profitability. By properly managing ventilation and air circulation, you can create a comfortable and healthy environment for your birds, reduce mortality rates, and increase productivity.

🤞 Don’t miss latest tips!

We don’t spam! Read more in our privacy policy

Sign up to receive awesome content in your inbox, every month.