Outdoor Plant Growth Chamber Extends Research Capabilities

Table of Contents
About this Article
A&L Biologicals addresses outdoor plant growth chamber challenges with a custom walk-in chamber.
Related Topics

A&L Biologicals addresses outdoor plant growth chamber challenges with a custom walk-in chamber.

A&L Biologicals’ limited indoor laboratory space was going to push its plant growth and research projects outdoors. Expanding research capabilities meant A&L were looking to maintain repeatable growing conditions. Reproducing these conditions is a challenge in a traditional glasshouse, as is the high cost of building an extension to their current space or putting up another building. An outdoor growth chamber was determined to be the best option.

Another significant challenge would be maintaining environmental conditions inside the growth space in the extreme Northern Canadian winters. This requirement led to a collaboration with MineARC Systems’ Biora to develop a 390sq/ft custom growth chamber that could withstand the external climate and mitigate the freezing ambient air entering.

Key Takeaways

  • A highly resilient outdoor plant growth chamber can provide a long-term solution for facilities with limited indoor space.
  • The custom design options offer clients the ability to tailor each aspect of the chamber to their specific needs.
  • Having a single point of contact for all chamber components allows clients to service their chambers with little to no downtime.
a and l lab plant growth chamber case study 5

About A&L Biologicals

A&L Biologicals’ Agroecology Research Service Center serves as a research facility dedicated to the detection of microorganisms that affect agricultural production. With plant root health as its primary objective, A&L Biologicals seeks to provide clients with research and innovative technology that increases plant production while also reducing costs. Through their research, A&L aims to develop molecular diagnostic tools that allow growers to understand the pathogens affecting their crops and how to create solutions.

Based in Ontario, Canada, A&L Biological has experienced significant challenges during its continued facility expansion in part due to the cold Canadian climate and its effects on plant growth. MineARC Systems’ Biora has worked alongside A&L to provide solutions to the challenges presented.

Site Challenges and Solutions


  • Lack of indoor space available
  • High wind speed within competitors’ units
  • Budgetary constraints
  • Extreme regional weather conditions


  • Developed and installed an outdoor chamber capable of withstanding extremely low temperatures, while maintaining controlled set points in the growth space
  • Designed ventilation and A/C to improve air circulation and maintain desired air exchange rate without introducing turbulent conditions to the plants
  • The network-connected HMI (Human-Machine Interface) provides access to monitor and control the chambers remotely.

An Outdoor Growth Chamber for Harsh Winters

Sensitive chamber components vital to maintaining a stable internal environment also had to be able to withstand the extreme temperature fluctuations of the Canadian climate. As the temperature changes throughout the year, the chamber had to be able to adjust to the temperatures of their designated location.

The outdoor plant growth chamber is equipped with insulated panels to minimize heat transfer with the environment. The chamber design requires fresh air exchange up to 10 ACH (air changes per hour), which would expose the controlled environment to the often-harsh external climate. This potentially significant temperature/humidity difference is mitigated by utilizing Energy Recovery Ventilation (ERV), which uses the expelled internal air to pre-condition incoming fresh air, ultimately reducing the overall load on the air conditioning system. Lastly, heated floors were incorporated to supplement radiant heat to the room to stabilize the temperatures within the chamber further.

a and l lab plant growth chamber case study 4

Ventilation and A/C for Outdoor Research Chamber

MineARC provided A&L Biologicals with a custom approach to air handling to reduce internal airspeed and improve air circulation in the unit without sacrificing fresh air exchange.

Included was a custom-sized energy recovery system to reduce and modulate airspeed and specifically designed air exchanger to maintain ideal gas exchange in a large space.

Remotely Accessing an Outdoor Growth Chamber

Casual monitoring or changing of set conditions inside the growth space would have been relatively inconvenient if users had to walk through freezing temperatures to access the controller within the chamber. With remote access available from their office desktop, it was merely a matter of logging onto the remote program to view or download condition data, check alarms or make changes to conditions inside.

“As Director of Research at A&L Biologicals, I and my staff are extremely pleased with the efficiency and the value of the Biora Growth Chamber. It has excellent temperature and air handling properties and the plants thrive in the environment that the chamber offers them. It is very utilitarian, easy to keep clean; water is available inside and it has performed well under even the coldest temperatures we experienced this winter.” 

MineARC’s focus on the local ambient climate, environmental conditions to be maintained, and the budgetary constraints expressed by the client played a vital role in the success of the project. After a year using the Biora growth chamber, A&L Biologicals plans to purchase two additional units to continue the expansion of their plant growth facilities.

Want to find out more?

Talk to an expert about our products, services, and custom solutions.

Newsletter Signup Form

A form to sign up to the Biora Newsletter