AC Infinity Terraform 9 UK, All-In-One Climate Control A/C, 9,000 BTU

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

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.

Positive Pressure: What That Actually Means for Your Room

The standard setup (the one that covers Cooling, Heating, Cool/Heat auto-switching and Fan through a single duct) runs on positive pressure, per AC Infinity's own installation manual. That means the Terraform is pushing air into your tent, not pulling it out. Worth understanding before you plug it in, because most "all-in-one" write-ups skip this bit entirely:

• Air going in has to come from somewhere, and air going in means air has to get out somewhere too. Use a lung room if you've got one: a sealed adjacent space the Terraform draws its intake from, with the tent's displaced air returning to that same space. That's the proper way to run this in a sealed room.
• No lung room? Then you're effectively cooling (or heating) the air in the room the tent stands in, not just the air inside the tent. The unit pulls its intake from that room, so the room's own temperature and humidity become part of the system whether you've planned for it or not.
• Keep the exhaust away from the unit's own intake. If the air coming back out of the tent ends up getting pulled straight back into the Terraform, you're just recirculating the same air in a loop. The unit works harder, your readings stop meaning anything, and you won't get the climate control you're paying for. Route it out into a different area to wherever the Terraform itself is sitting and drawing its intake from.

It's an all-in-one, not a do-it-all-at-once. Think Swiss Army knife rather than toolbox: every tool's in there, but you're using one blade at a time. The single-duct setup above genuinely does auto-switch between Cooling, Heating and Fan with zero reconfiguration. What it can't do is dehumidify your tent on that same setup at the same time. Dry mode needs its own configuration, either dehumidifying the space the unit's sitting in (no duct into the tent at all) or adding a second duct for dehumidification targeted at the tent, alongside the main one.

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

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 - those run on the standard single-duct, positive-pressure setup. Deeper, targeted dehumidification into the tent uses a two-duct configuration; full-space dehumidification (dehumidifying the room the unit sits in) uses no duct into the tent at all.

Can it cool, heat and dehumidify all at the same time?

Not on the standard single-duct setup - yes it's an "all-in-one", but not a "do-it-all-at-once" - think of a Swiss Army knife; they are also an "all-in-one" but in the same way, you can't use them all at bloody once!

Cooling, Heating and Fan auto-switch between each other on that single duct with zero reconfiguration, but Dry mode is its own separate setup - either no duct into the tent at all, or a second duct added alongside the main one for dehumidification targeted at the tent. One function at a time on the main duct.

What does "positive pressure" mean for how I set this up?

It means the Terraform is pushing air into your tent rather than pulling it out, so that air has to come from - and return to - somewhere. You push any type of air into a space..it is going to blow out if the exhaust is running at lower power.

Ideally that's a lung room: a sealed adjacent space the unit draws intake from and the tent's displaced air returns to. Without one, the room the tent stands in effectively becomes part of the system, since that's where the unit pulls its intake air. Either way, keep the tent's exhaust away from the Terraform's own intake - recirculating the same air in a loop means the unit works harder for climate control you're not actually getting.

In simple terms, make the Terraform pump the cool air into a separate space (another tent or a room, or even a big cardboard box, it don't matter), then have the tent suck from this space so it's drawing the cool air by proxy when the extraction is running.

1. UK SHIPPING COSTS

Here’s the deal:

• Orders under £99: £8.49 shipping

• Orders £99 or more: FREE shipping 🎉

BUT… bulky or awkward items still carry a surcharge:

• £5 per 50L soil bag

• £15 for large tents, trays, 6ft poles, etc.

• £2.50 per extra 5KG of Coco bricks (over 15KG)

• Anything that needs to go on a pallet; from £60 pallet 

If you're in the Highlands, Islands, NI, or similar, there's a flat £27 charge + any surcharges. These all get added automatically at checkout.

1.1 Missed or Failed Deliveries

If your parcel comes back to us because you weren't in, didn't collect it, gave us the wrong contact/address details, or didn't respond to the courier, we'll offer to resend or refund:

• Resend – the reship fee is whatever you paid for shipping the first time round. If your original order had free shipping, we'll work out the reship cost based on what it actually costs to send it again.

• Pallet items – reship starts from £60, but can be more for remote areas (Highlands, Islands, NI, etc.) – same surcharges that applied the first time.

• Refund instead – minus courier costs and a 15% admin/restocking fee. See our Refund Policy for how refunds work.

Please double-check your delivery details and track your parcel to avoid this altogether.

International missed/failed deliveries follow the international section below – courier and customs costs plus the 15% fee apply, there's no flat reship rate.

2. UK SHIPPING TIMES

We usually dispatch within 1–2 working days, and send on a next-day delivery after that (mainland UK). However, some parts of the UK like Scottish Highlands, may take 2 days to ship.

Some delays are out of our hands (stock levels, courier hiccups, bank holidays, peak sales), so please allow up to 5 working days before chasing.

Need it urgently or on a Saturday? Call 020 8686 9643 first and we'll help.

2.1 Previously Used Courier Preferences

If you've ever told a courier “leave it in the shed/porch/bushes” – that preference may stick. They might do it again even if you didn't ask this time.

We're not responsible for items lost, damaged or stolen due to these delivery instructions. If in doubt, let us know in advance and we'll try to override it.

3. INTERNATIONAL SHIPPING

3.1 Do You Ship Abroad?

Yes, we ship worldwide 🌍

UK VAT is removed where applicable. Local VAT, customs duties and import charges may then apply when your parcel enters its destination country.

Ordering from Germany? Gute Nachrichten! 🇩🇪

We are now German VAT registered and send German orders DDP. This means the relevant VAT and customs charges are handled by us, with nothing extra for you to pay when your parcel arrives. Almost like we're part of Europe again!

For every other country outside the UK, orders ship DAP – that's standard for goods sent from the UK. Your order price doesn't include the destination country's VAT or duty, so local VAT, customs duties, clearance charges and any courier handling fee are your responsibility when your parcel arrives.

We ship in good faith, but it is your responsibility to check whether the products you order are permitted in your country. With more than 7,000 products, we cannot monitor every local restriction.

3.1b UK Specification: Plugs & Voltage

All our electrical products are UK spec – UK plug, UK 230-240V voltage.

If you're ordering from outside the UK, it's on you to sort out a plug adapter or rewire, and to check your local voltage is compatible. We don't rewire, re-plug, or convert voltage before dispatch, and we're not liable for damage caused by using UK-spec electrical items on an incompatible supply. If you're not sure your setup can take a UK-spec item, check before you order.

3.2 Shipping Costs

Our system is not perfect yet. Standard EU shipping normally starts from around €35, but if the actual cost is higher, we will contact you before dispatch.

You can pay the difference or cancel the order for a full refund.

Want a quote before ordering? Email info@thehydrobros.com, or select bank deposit at checkout so we can review the order before payment.

3.3 How Long Will It Take?

Europe: Usually 2 to 4 working days, although customs can add delays
USA: Surprisingly quick, sometimes around 2 working days
Rest of the world: Usually up to 7 working days or longer, depending on customs

Tracking will be provided as soon as your order leaves us.

3.4 Customs and VAT

International orders may be subject to local VAT, customs duties, clearance charges and additional paperwork.

Please provide a valid email address and phone number so the courier or customs authority can contact you if needed.

Germany is the exception. German orders are sent DDP, so we handle the relevant import charges and you should not be asked to pay anything extra on delivery.

3.5 Temporary EU Customs Duty

From 1 July 2026, the EU introduced a temporary customs duty on qualifying low-value parcels entering the EU from outside the EU.

For consignments with an intrinsic goods value of €150 or less, the duty is generally charged at €3 per customs item or tariff classification, rather than simply €3 per parcel.

For example:

• Several identical products under one tariff classification may attract one €3 charge
• Products under two different tariff classifications may attract two €3 charges

This duty is collected by the courier or destination customs authority when your parcel arrives – not by us at checkout – so it'll show up as part of what's due on delivery, alongside any local VAT.

This measure is temporary because it acts as a bridge while the EU prepares its permanent customs system. It is currently intended to apply until 1 July 2028. After that, low-value goods are expected to move onto the permanent system, where normal customs tariff rates will apply according to the type and origin of each product.

This temporary customs duty is separate from VAT and is also separate from the proposed EU parcel handling fee, which is a different measure.

3.6 What If You Don't Pay Customs Fees?

No payment means no parcel.

If you ignore a customs payment request, the parcel may be delayed, returned or destroyed.

If it is returned to us, your refund will be reduced by:

• Original shipping costs
• Return courier charges
• Any unpaid customs or carrier charges billed back to us
• A 15% administration and restocking fee

If the parcel is destroyed, abandoned or lost because the required charges were not paid, no refund will be issued.

This does not apply to German DDP orders where the relevant charges are being handled by us.

3.6b What If Your Country Won't Let It In?

We'll ship almost anything to almost anywhere – if it fits in a box, we can put a label on it and hand it to the courier. But getting it through customs at the other end is on you.

It's your job to know:

• Whether the product you're ordering is legal to import into your country
• Whether it needs a licence, certificate, or extra paperwork to clear customs
• Whether restrictions apply to that item specifically (voltage, plant nutrients, electricals, batteries, etc. – rules vary wildly by country)

With over 7,000 products shipping worldwide, we can't check every country's import rules for every item – so we don't, and we won't be held responsible for a parcel that gets stopped because it wasn't allowed in, or because customs wanted paperwork you couldn't provide.

If your parcel is delayed, returned, or destroyed because of import restrictions or missing paperwork on your end, the same terms as 3.6 above apply:

• Original shipping costs (non-refundable)
• Return courier charges
• Any customs or carrier fees billed back to us
• A 15% admin/restocking fee

If it's abandoned or destroyed rather than returned, no refund will be issued.

Not sure if something can legally land in your country? Check with your own customs authority before you order – not after it gets stuck.

3.7 Faulty Products

For overseas orders, you're responsible for the shipping costs of any return, repair, or replacement – including if the item is faulty – unless we've confirmed otherwise with you in writing.

3.8 International Summary

For most international destinations, customs rules, local taxes, duties and paperwork are your responsibility.

For Germany, we are VAT registered and ship DDP, so there should be nothing extra to pay when your parcel arrives.

For qualifying EU consignments worth €150 or less, a temporary customs duty may apply on delivery. This is normally calculated at €3 per customs item or tariff classification, and is collected by the courier or customs authority – not by us at checkout.

Check before buying if you are unsure. It saves everyone a headache.

Thank you for shopping with The Hydro Bros. We hope you're happy with your purchase — but if you've changed your mind, ordered the wrong item, or need to return something, here's how it works.

How long do I have to return something?

You have 14 working days from the day your order is delivered to request a return. All returns must meet the following conditions to be accepted.

What are the return conditions?

To be eligible for a return:

• The item must be unopened, unused, and in original condition

• All packaging must be intact, including outer boxes and security seals

• The product must be returned in "box-fresh" condition — clean, untorn, and free from tape, labels, or writing

• Faulty items must be returned in full for inspection

• Returns are only accepted from end consumers, not businesses purchasing for resale

• Returns must be authorised by us before sending anything back — contact info@thehydrobros.com

Who pays for return shipping?

If the item is not faulty, you are responsible for the return shipping costs.
We recommend using a tracked and insured service — the item remains your responsibility until it arrives back with us.

What if I reject the delivery or miss it?

If you refuse delivery or fail to collect your parcel and it gets returned to us, we'll offer to resend or refund:

• Resend — the reship fee is whatever you paid for shipping originally. If your original order had free shipping, we'll calculate the reship cost based on what it actually costs to send it again. Pallet items start from £60, and can be more for remote areas (Highlands, Islands, NI, etc.).

• Refund instead — minus the original delivery cost, reship/return costs, and a 15% restocking and handling fee.

Full detail on missed and failed deliveries is on our Shipping Policy.

Will I get a full refund?

If your return is accepted, we'll issue a refund minus:

• The original delivery cost (even if not listed separately at checkout)

• A 15% restocking and handling fee

These fees help cover the cost of inspection, repackaging, and processing — returns aren't free to manage, and this keeps pricing fair for all customers.

Why do you charge a restocking fee?

Hydroponic gear often requires careful inspection, cleaning, and handling to be resold safely. The 15% restocking fee helps cover these operational costs and allows us to continue offering competitive prices across the board.

What if my item is faulty?

If you believe an item is faulty, contact us first with photos/videos to verify the issue. If confirmed, we'll guide you through the return process and offer a like-for-like replacement.

If the item is returned and found to be fully functional, the return will be treated as a standard one — and all standard fees will apply (delivery + 15%).

For orders shipped outside the UK, you're responsible for the shipping costs of any return, repair, or replacement — including if the item is faulty — unless we've confirmed otherwise with you in writing. See our Shipping Policy for international shipping details.

What happens if I return something in poor condition?

If the item is:

• Used,

• Damaged,

• Missing parts, or

• Returned with torn, marked, or taped-up packaging,

We reserve the right to refuse the refund entirely.

You'll then have two options:

• Arrange return shipping at your own cost

• Leave the item with us — if unclaimed after 28 days, we will responsibly dispose of it

Cancellations

Can I cancel my order?

Yes. Under UK distance selling rules, you have 14 days after receiving your order to cancel it entirely. The same return conditions as above apply — unopened, unused, original packaging, box-fresh.

What if I cancel after it's already shipped?

You'll get a refund once we receive the item back, minus the cost of shipping and a 15% admin fee.

What if the returned item isn't in as-supplied condition?

If it's been opened, used, or marked, we reserve the right to treat it as a partial loss and refund a clearance value rather than the full amount paid.

Damages & Receiving Your Order

What should I do when my parcel arrives?

Inspect it for damage before you sign for it. If there's any sign of damage, tell the courier in writing at the point of signing — and keep all packaging in case you need to make a claim.

What if I sign for it without mentioning damage?

We can't accept a damage claim for a parcel you've signed for without noting damage at the time. Once signed for, any damage found afterwards is treated as having happened after delivery.

What if something's missing from my order, or the wrong item's inside, or it's damaged in transit?

Open your parcel and check the contents as soon as it arrives. You need to report transit damage, missing items, or wrong items within 24 hours of delivery.

We get contacted weeks — sometimes months — after delivery by people who never opened the box, saying an item's missing or damaged. We can't do anything with that. No packaging, no timely report, no proof it didn't happen after the fact — there's nothing to investigate and nothing we can action. Check your order when it lands, not when you finally get round to using it.

What if an item develops a fault later on?

That's a different situation to transit damage — see the Faulty Items section above. There's no 24-hour cutoff for genuine faults; contact us with photos/videos when the issue shows up and we'll take it from there.

What if my order doesn't arrive when expected?

Let us know within 2 days of the expected delivery date — that gives us the best chance of sorting it.

What if my parcel goes missing entirely?

You must tell us in writing within 7 days of the expected delivery date. Couriers have a claim window, so if we're not told in time, we can't make a claim and can't refund the loss.

Are damage claims accepted for items caused by misuse or abuse?

No — we don't accept return or damage claims resulting from physical damage or abuse after delivery.

Lost Parcels

What happens if my parcel goes missing?

We'll open an investigation and claim with the courier. You'll need to participate — this may include completing and signing a legal declaration form to support the claim.

How long does this take?

Once the claim is approved, a refund can take up to 10 working days to process.

Refund Timing

How will I know if my refund is approved?

We'll notify you once we've received and inspected your return, and confirm whether it's been approved.

How do I get paid back?

Approved refunds go back to your original payment method automatically, minus any deductions covered elsewhere on this page (shipping costs on non-fault returns/cancellations, restocking fees, condition deductions).

How long does it take to arrive?

Please allow 10 working days from refund confirmation for the money to actually land back with you — your bank or card provider can add extra processing time on their end.