Importance of Hatchery Ventilation Room Pressure

Everyone in the hatchery industry understands that proper ventilation is vital to having a high percentage hatch. If the temperature or relative humidity are not where they are supposed to be, it is common knowledge that the hatch will be lower and the hatchery will end up with poorer quality birds. However, keeping the proper room pressure throughout the hatch cycle can be as vital as room temperature and relative humidity.

A lot of hatcheries will erroneously sacrifice room pressure to satisfy temperature or humidity settings. In some cases, a hatchery may not have any other choice due to outdated designs and equipment. If a hatchery has multistage incubation, evaporative coolers and no plenums, the room pressures are going to swing drastically for six to eight months out of the year. When a room becomes too positive, the intake air flow in a setter increases to a point that it stops circulating through the setter and instead only travels through the top of the setter and leaves through the exhaust. This effect causes the temperature to rise in the lower racks and receive less oxygen. The temp between the lower and upper racks can be as much 3+ degrees and significantly effecting the hatch.

On the opposite end of the spectrum, during the winter months, hatcheries with out of date equipment have been known to reduce the speed of the exhaust fan to help maintain temp and humidity. This will have a similar result on the egg set as too much airflow. The hatch will lack oxygen and become dehydrated from the higher temperatures in the lower racks.

As understanding of these factors continue to spread, there has been a shift throughout the industry. Room pressures need to be viewed as a vital portion of any ventilation system. The goal of any hatchery should be to maintain proper temperature, relative humidity, and room pressures.

No matter the need, HAPCO can assist you in finding the solution. From hatchery ventilation to hatchery automation equipment, the answer is only an email or phone call away. Hatchery Planning Company can be reached by email at or by phone at 1-800-248-1617.

Hatchery Planning

Over the last 60 years, Hatchery Planning has cemented itself as an industry leader across the United States and around the globe. Having started with the primary focus on ventilation systems for chicken hatcheries, HAPCO was able to offer a unique perspective not found in most HVAC companies. Over the years, HP has expanded to become a single source solution for any hatchery’s needs. From construction and design services to turnkey start-up, Hatchery Planning provides unmatched knowledge and customer service.

HAPCO handles any need for companies looking to remodel an existing facility, build an addition, or construct an entirely new site. Services provided include the initial consultation, project budgeting, construction bidding, floor planning, construction documentation, and project start-up. In contrast to most engineering firms, Hatchery Planning understands the flow of a hatchery and the proper way to construct an efficient facility.

As the company has grown, so has their areas of expertise with the addition of automation, robotics, and mechanical fabrication and installation. Offering a plethora of washers, destackers/restackers, and chick handling equipment that is all designed, engineered and built at our fabrication shop in Powder Springs, Georgia. Without being distracted by other industries, Hatchery Planning has been able to build some of the highest quality custom-built machinery available for the hatchery industry.

Hatchery Planning has paired with ABB Robotics to provide efficient solutions to labor intensive tasks. Replacing manual labor with a robot lowers long-term costs and reduces liability and job-related injuries associated with repetitive and strenuous activities. Currently offered are hatcher tray destacker, hatcher tray restacker, chick box restacker, egg transfer, and rack unloading solutions.

No matter the need, HAPCO can assist you in finding the solution. From high pressure humidity systems to waste handling equipment, the answer is only an email or phone call away. Hatchery Planning Company can be reached by email at or by phone at 1-800-248-1617.