GAS

GAS Climate Control and Carbon Filtration

GAS makes the controllers that sit between your fan and your actual climate targets. The Enviro Fan Controller handles straightforward temperature-based ventilation control, useful if you just want your fan to respond to heat without managing it manually. The Enviro V2 steps that up to closed-loop automation across both temperature and humidity, which matters once you're trying to hold a specific VPD target rather than just keeping the room from overheating.

For EC-rated inline fans specifically, the EC2 and EC5 controllers handle speed control and fan balancing in a way standard AC fan controllers can't, the EC5 adds Reactive Temperature Technology that responds to conditions in real time rather than working off a fixed setpoint. If your fan uses a different input connector, the RJ11, stereo, and GAS-to-stereo adaptors solve the compatibility gap rather than locking you into one fan brand.

On the filtration side, CarboAir 50 carbon filters use Australian RC-412 activated carbon, sized from 100mm through to 250mm to match whatever inline fan you're running.

Frequently Asked Questions

Do I need the Enviro V2, or is the standard Enviro enough?
The standard Enviro controls fan speed based on temperature alone, which covers most basic ventilation needs. The Enviro V2 adds humidity into the equation as well, worth the upgrade if you're actively managing VPD rather than just preventing overheating.

What's the difference between the EC2 and EC5 fan controllers?
Both control and balance EC-rated fans. The EC5 adds Reactive Temperature Technology for more responsive, real-time speed adjustment, the EC2 is the simpler, more straightforward option.

How do I know which adaptor I need for my fan?
Check what connector your fan uses, RJ11 or stereo input, then match the corresponding GAS adaptor. If you're unsure, the connector on your existing fan controller cable will tell you which type you have.