Description
In stock now. UK specification, 230V / 50Hz with a UK plug fitted as standard.
AC Infinity Terraform 9 puts cooling, heating, dehumidification, air circulation and VPD control into one serious climate system. Instead of piecing together separate bits of kit, you can manage the grow environment from one unit and let it respond as conditions change.
Terraform 9 at a glance
| What it does | Cooling, heating, dehumidifying, circulation and VPD control |
| Cooling | 9,000 BTU |
| Heating | 2,100W |
| UK power | 230V / 50Hz, UK plug |
| Recommended space | Grow tents up to 10 x 10ft |
| Model | AC-ACN9 |
One unit. Proper climate control.
Terraform 9 can automatically switch between cooling, heating and fan operation through a single duct. Set the temperature or VPD you want and, when paired with Controller AI+ or a compatible newer controller, the system can react to changing conditions without you constantly chasing the room.
For deeper dehumidification, the unit can be configured with two ducts. Its self-evaporating design also sends excess water back towards the condenser, helping reduce how often the unit needs draining.
Why growers are looking at the Terraform 9
- 9,000 BTU cooling and 2,100W heating from one unit
- Cooling, heating, dehumidification, circulation and VPD management
- Single-duct automatic switching between cool, heat and fan modes
- Self-evaporating design to reduce drain frequency
- WiFi app features when paired with a compatible AC Infinity controller
- Automation, schedules, environmental data, alerts and historical tracking through the AC Infinity ecosystem
- Wheels for easier positioning
- UK specification with UK plug fitted
Terraform 9, Terraform 8 and Terraform 7
If you have been searching for Terraform 8 or Terraform 7, this is the UK and EU Terraform model you are looking for. Terraform 9 is the 230V / 50Hz UK and EU release. The Terraform 8 name is associated with the equivalent North American platform, while Terraform 7 was an earlier generation.
We have broken the naming down properly in our Terraform 8 vs Terraform 9 guide.
Smart control and the AC Infinity ecosystem
Pair Terraform 9 with a compatible controller to bring it into the wider AC Infinity system. That gives you access to automation, schedules, alerts and environmental data from your phone. Building out a full AC Infinity room? Take a look at our AC Infinity range for compatible ventilation, controllers and grow-room equipment.
Compatibility note: Automatic mode switching is not available with Controller 69 Pro+ or earlier controllers.
Technical specifications
| Manufacturer | AC Infinity Inc. |
| Model | AC-ACN9 |
| UPC | 819137025189 |
| Cooling | 9,000 BTU |
| Heating | 2,100W |
| Maximum power draw | 1,200W |
| Voltage | 230V AC |
| Frequency | 50Hz |
| Current | 5A |
| Operating temperature | 16 to 35°C |
| Operating humidity | 35 to 85% RH |
| Smart controls | Temperature, humidity, VPD, 10 levels |
| Unit dimensions | 38.8 x 40.2 x 70.4cm |
| Duct tube lengths | 198.1cm and 167.6cm |
Terraform 9 FAQs
Is the AC Infinity Terraform 9 available in the UK?
Yes. This is the UK specification Terraform 9, supplied for 230V / 50Hz power with a UK plug fitted.
Does Terraform 9 cool and heat?
Yes. It provides 9,000 BTU of cooling and 2,100W of heating, alongside dehumidification, circulation and VPD control.
Can Terraform 9 control VPD?
Yes. VPD-based control is supported when the system is paired with the appropriate compatible AC Infinity controller.
Do I need two ducts?
Not for normal automatic cooling, heating and fan switching. A single duct can be used for those modes. Deeper dehumidification uses a two-duct configuration.





