Mastering CO2 Enrichment: Burners Vs. Compressed Tanks

Table of Contents

1. Introduction
2. Burner versus Compressed Tank Systems
3. Pros and Cons of Burner Systems
4. Pros and Cons of Compressed Tank Systems
5. Sizing the Burner System
6. Setting up the Burner System
7. Sizing the Compressed Tank System
8. Refilling the CO2 Tanks
9. Tips for Handling CO2 Tanks
10. Controlling Heat Buildup with CO2 Systems
11. Final Thoughts and Conclusion

Introduction

Welcome to Lexus World and CO2 102! In this episode, we will be diving deeper into the world of permanent style CO2 systems for serious and commercial-size gardeners. We will also provide extensive tips on troubleshooting a garden's environment when using a CO2 system. If you need a refresher on the basics of how CO2 works with plants and indoor greenhouses, be sure to check out CO2 101.

Burner versus Compressed Tank Systems

When it comes to CO2 systems, there are two main options to consider: burner systems and compressed tank systems. Both can work effectively, but the choice between them depends on your specific needs and circumstances.

Pros and Cons of Burner Systems

Burners are permanent, non-mobile CO2 generators that use a pilot light with open flame burners to burn oxygen already present in the air. While burners can be operated manually, most people use a 24-hour timer to control them. However, there are several factors to consider when using burners.

One disadvantage of burners is that they generate a significant amount of heat, which can make them challenging to operate in smaller rooms. Additionally, if you live in a warm climate, using a CO2 burner system may not be feasible as it can lead to unmanageable temperatures, even with LED lights. Burners also require a higher upfront cost compared to compressed tanks, and additional expenses are associated with safety measures such as having a CO2 monitor/controller in the same room. It's important to note that burners must be hung from the ceiling, which adds to the setup process.

However, burners have the advantage of being approximately three times cheaper to operate per day than compressed tank systems. If you have easy access to propane or natural gas, which are the main fuel types for burners, they can be a cost-effective long-term solution for large, permanent greenhouses. Sizing the burner correctly is crucial to ensure optimal cost efficiency. For every 1,500 square feet of greenhouse space, a 10-burner unit is recommended. An 8-burner unit is suitable for every 650 square feet, while a 4-burner unit is more commonly used for rooms around 250 square feet.

Pros and Cons of Compressed Tank Systems

Compressed tank systems, on the other hand, are incredibly easy to set up. Despite their intimidating appearance, they offer mobility, making them ideal for smaller spaces. These systems consist of a tank filled with compressed carbon dioxide and an on/off valve on top. The emitter, attached to the valve, consists of valves and meters. Modern systems often integrate the regulator and flow meter into a single unit.

One advantage of compressed tank systems is their mobility. You can easily bring them into your space and remove them as needed. Tanks can be refilled or exchanged when empty, and you can find refill services in welding supply shops, hydroponics stores, or beverage supply companies.

When choosing a tank size, a 20-pound tank is generally the best option if you're unsure. If you have a large space or want extended periods between refills, a 35-pound tank may be suitable. Going larger than this is unnecessary, and at that point, it might be more efficient to consider a burner system.

It's important to place the tanks outside the actual grow space and have them emit CO2 into it. Using an oscillating fan can help distribute the CO2 more effectively. Additionally, always protect the valve on top of the tank to prevent damage. Make sure to position the tank in a safe location where it won't be accidentally damaged or tripped into.

Sizing the Burner System