AC INFINITY
AC Infinity THERMOFORGE T7, Plant Heater 1000W with AI-Powered VPD Temp Controller
Pickup available at Bansley Store
Usually ready in 24 hours
Shipping & Returns
Our current shipping rates are as follows:
- UK Orders Over £50 – Free Next Day Delivery
- UK Orders Under £50 – £8 (Next Day Delivery)
- UK Orders Next Day AM – £20
- UK Orders Saturday AM – £30
- International Orders DAP – Select between UPS or Fedex and we'll sort the rest. (All duty paid by us prior to shipping)
All parcels are fully tracked. Once your order has been dispatched, you’ll receive an email containing your tracking number.
If your order is classed as an oversized item OR deemed extra heavy, additional heavy shipping duty will be added at checkout when selecting your shipping options.
Returns
We want you to be completely satisfied with your purchase, but if you change your mind, you may cancel your order within 14 days of receipt for a full refund, provided the items are unused and in resalable condition.
Once your cancellation has been confirmed, you must return the items within 14 days, ideally in their original packaging.
Click & Collect
Order online and collect directly from our Sheffield OR Barnsley store. Once your order is ready, you’ll receive an email or phone confirmation with collection details. Please wait for confirmation before travelling to ensure your order is prepared.
Please have your order number ready to give to a member of staff when you arrive.
Sheffield Store:
GSH Retail Ltd
Unit 5, 230 Woodbourn Road
Sheffield
S9 3LQ
Barnsley Store:
GSH Retail Ltd
Unit 6, Rockingham Business Park
Rockingham Row, Birdwell
Barnsley, S70 5TW
Local Same Day Delivery Service
Our man in a van!
Same-Day Delivery Service
Enjoy fast, reliable, and fully discreet same-day delivery with Green Spirit when you order from our Sheffield store area.Whether you shop online or
in-store, we make getting your items easy,convenient, and secure.
Order Online
When placing your order through our website, simply select the Same-Day Local Delivery option at checkout.
- Free Same-Day Delivery on orders over £250.00
- Available customers within a 3-mile radius of our Sheffield store (S9 3LQ)
- Orders under £250.00 can still be delivered the same day for a £50.00
flat fee
Your order will be prepared and delivered directly to your
door the very same day, using our discreet delivery service.
Order In-Store
If you prefer to shop in person, visit our Sheffield
location to browse, purchase, and arrange delivery.
- Pay
in full for your items in-store - Choose
a delivery time and date that suits you best - Our
team will ensure a smooth and convenient handover
Discreet Delivery Promise
We understand the importance of privacy.
- All
our delivery vans are plain and unmarked, with no company
branding - Parcels
are packaged in plain or black wrapping for complete discretion
Delivery Requirements
To ensure everything runs smoothly:
- Customers
must be present at the agreed delivery time - Drivers
cannot wait for extended periods - If
the customer is not available, items will be returned to the store and a £50.00
redelivery fee will apply
Upon
delivery, we will request a order number, name and signature to
confirm receipt
Discreet Shipping
All orders from GSH Retail Ltd are packed securely and shipped in Plain unbranded boxes for your privacy. We understand that discretion is important, so no external markings or product details are visible on the packaging.
Each parcel is also wrapped in durable black film and sealed with fragile tape to ensure both security and protection in transit.
We take great care to make sure your order arrives safely, discreetly, and in perfect condition — every time.
Methods Of Payment
We accept a wide range of secure payment options for your convenience when shopping with GSH Retail LTD
You can pay using:
Visa, Mastercard, American Express, and Discover
Apple Pay, Google Pay, and Shop Pay
PayPal – Fast and secure online checkout with buyer protection
Klarna – Flexible payment options, including Pay in 3 instalments or Pay Later
Clearpay – Split your purchase into four interest-free payments
Weston Union– Supported for international customers
Cash In The Post - This is at your own risk! Please make sure it is signed for, tracked, and insured.
Manual Bank Transfer - Contact a member of staff to organise paying via bank transfer.
All transactions are processed securely through Shopify’s encrypted checkout. Your payment details are never shared directly with us.
Once your order is placed, you’ll receive an order confirmation email, followed by tracking details once your parcel has been dispatched.
Finance Options
We offer flexible finance options to make purchasing easier. You can choose to spread the cost of your order, all three options are interest-free and give you the flexibility to manage your payments in a way that suits you.
PayPal Pay in 3
PayPal Pay in 3 allows you to divide your purchase into three equal interest-free payments over two months. The first payment is made at checkout, followed by two automatic payments each month.
It is available on orders between £30 and £2,000, and approval is completed instantly through your PayPal account. You can view, manage, or make payments easily through the PayPal app or your online account.
Shop Pay
Shop Pay Installments lets customers pay for an order in smaller increments over time.When available, Shop Pay Installments is a great option to help you maximize your budget for orders between the following amounts, depending on your location:
Klarna
Klarna offers two flexible ways to pay. With Pay in 3 instalments, your order total is divided into three equal payments, taken every 30 days with no interest or fees when paid on time. Alternatively, you can choose Pay Later in 30 Days, allowing you to receive your order first and settle the balance within 30 days. Klarna provides instant approval at checkout, and all payments can be managed securely through the Klarna app.
Clearpay
Clearpay lets you spread the cost of your purchase into four equal interest-free payments, taken automatically every two weeks. The first instalment is paid at the time of purchase, and the remaining three are collected automatically over six weeks. Clearpay is available for orders between £30 and £1,000 and can be managed easily through the Clearpay app.
Important Information
All finance options are subject to eligibility and approval by the provider. Late or missed payments may affect your credit score, so please ensure funds are available when payments are due. For details about eligibility, limits, or payment schedules, please refer to the provider’s website or app.
Earning Points & Rewards
At GSH Retail we believe loyalty should be rewarded - Our Points & Rewards scheme allows you to collect points every time you shop and redeem them for discount codes to use on future purchases.
When you make a purchase through our website, you’ll automatically earn points based on the value of your order. These points are added to your account and can be saved or redeemed whenever you choose. Once you’ve collected enough points, you can exchange them for a unique coupon code that can be applied at checkout to reduce the cost of your next order.
Earn 5 Points for every £1 spent
Redeem 100 Points for £1 Store Credit
Your points never expire as long as your account remains active, and you can track your balance easily through your customer account dashboard. It’s our way of saying thank you for choosing GSH Retail Ltd
To redeem your points, simply log into your account, view your available balance, and follow the on-screen instructions to generate a discount code. Enter the code at checkout to instantly apply your reward.
AC Infinity THERMOFORGE T7 Plant Heater – 1000W AI-Powered Temperature & VPD Controller
Maintain stable temperatures throughout every stage of indoor plant growth with the AC Infinity THERMOFORGE T7. This powerful 1000W smart plant heater combines adaptive AI climate control, precise temperature and VPD programming, ten true heating levels and flexible ducting options to create a more consistent environment inside grow tents and grow rooms.
Unlike basic heaters that simply switch on and off at full power, the THERMOFORGE T7 uses individually controlled PTC heating plates and advanced PWM technology to adjust its output gradually. This helps reduce sharp temperature swings, improve heating efficiency and maintain your chosen environmental targets with greater precision.
Key Features
- Powerful 1000W plant heater for grow tents and grow rooms
- Adaptive AI temperature and VPD programming
- 10 true heating levels for precise output control
- Fan mode for fresh air intake without heating
- Individual PTC heating plates with PWM control
- Dual 4-inch duct ports for flexible installation
- Suitable for open-loop and closed-loop configurations
- Can be positioned inside or outside the growing space
- Precision corded climate sensor included
- Compatible with AC Infinity UIS™ controllers
- Wi-Fi app functionality available through a compatible controller
- Safety features include overheat protection and tip-over alerts
- UK specification with a UK plug
Adaptive AI Climate Management
The THERMOFORGE T7 uses adaptive AI to learn how your growing environment responds to heating. Rather than repeatedly switching between full power and no power, the controller dynamically adjusts output to help maintain your selected temperature or VPD target.
This intelligent approach helps minimise environmental fluctuations and provides more consistent warmth during colder periods, overnight temperature drops and seasonal changes.
10 True Heating Levels
Individual PTC heating plates allow the THERMOFORGE T7 to provide ten genuine levels of heating power. This gives you more accurate control than a conventional single-output heater and allows the system to apply only the amount of heat required.
Advanced PWM control delivers smooth adjustments between levels, helping reduce unnecessary power consumption and sudden temperature changes.
Temperature & VPD Programming
The included smart controller supports both temperature and Vapour Pressure Deficit programming. Using the precision climate sensor, the heater monitors conditions inside your growing space and automatically adjusts its output to maintain your programmed target.
VPD-based control allows temperature management to work alongside humidity conditions, helping create a more balanced indoor growing environment.
Heating & Fresh Air Modes
Alongside its ten heating levels, the THERMOFORGE T7 can operate in fan mode to draw in fresh air without activating the heating plates. This provides greater flexibility when environmental conditions change and allows the same unit to support both warming and air exchange.
Flexible Dual-Duct Installation
Dual 4-inch duct ports allow the heater to be adapted to different grow room layouts. It can be positioned outside the grow tent and connected using thermal-resistant ducting, keeping the main unit away from more humid conditions while directing warm air into the growing space.
The dual-port design supports:
- Direct warm air delivery into a grow tent
- Fresh air intake from outside the growing space
- Open-loop air exchange systems
- Closed-loop heating for improved efficiency
- Installation inside or outside the grow room
Please note: Ducting is not included and must be purchased separately where required.
Smart UIS™ Compatibility
The THERMOFORGE T7 can connect to compatible AC Infinity UIS™ controllers for expanded environmental automation and app-based control. When connected to a suitable Wi-Fi-enabled controller, growers can access advanced programming, data tracking, alerts and remote monitoring through the AC Infinity app.
Compatible control features may include:
- Temperature automation
- VPD automation
- Custom schedules
- Minimum and maximum output levels
- Historical environmental data
- Alerts and notifications
- Remote equipment control
Built-In Safety Features
The THERMOFORGE T7 is designed for dependable indoor operation and includes multiple safety systems. Flame-retardant materials, overheat protection, automatic restart protection and tip-over alerts help provide added reassurance during regular use.
Always connect the heater directly to a properly grounded wall socket with suitable surge protection. Do not use extension leads or power strips, and avoid sharing the same socket with other high-powered equipment.
Important Operating Guidance
- Designed for indoor use only
- Operate within a controlled environment between 30% and 65% relative humidity
- Do not use outdoors or in excessively humid areas
- Do not allow humidifier mist to enter the heater or intake ducting
- Avoid using a humidifier within the same closed-loop ducting system
- Keep the air intake and outlet clear during operation
- Use suitable thermal-resistant ducting where ducted installation is required
Technical Specifications
| Model | THERMOFORGE T7 |
| Product Model | AC-SFT7 |
| Maximum Heating Power | 1000W |
| Voltage | 240V AC |
| Current | 5A |
| Smart Controls | Temperature & VPD |
| Operating Modes | Heating & Fan |
| Control Range | 10 Levels |
| Duct Size | Dual 4" / 100mm Ports |
| Unit Length | 22cm |
| Unit Width | 17.8cm |
| Unit Height | 25.4cm |
| Operating Temperature | -10°C to 60°C |
| Operating Humidity | 30% to 65% RH |
| Controller Compatibility | Compatible AC Infinity UIS™ Controllers |
| Power Connection | UK Plug |
Ideal For
- Grow tents
- Indoor grow rooms
- Hydroponic growing systems
- Propagation areas
- Cold-weather growing
- Night-time temperature management
- Temperature and VPD control
- Automated AC Infinity UIS™ systems
Frequently Asked Questions
Can the THERMOFORGE T7 be installed outside the grow tent?
Yes. The heater can be positioned outside the growing space and connected using compatible 4-inch thermal-resistant ducting. This allows warm air to be delivered into the tent while keeping the main heater away from higher humidity levels.
Does the heater include AI control?
Yes. Its adaptive AI programming dynamically adjusts heating output to help maintain your selected temperature or VPD target with fewer environmental swings.
Does it only produce heat?
No. The THERMOFORGE T7 also includes a fan mode that can draw in fresh air without activating the heating plates.
Is ducting included?
No. Compatible 4-inch thermal-resistant ducting must be purchased separately when required for your installation.
Can it connect to the AC Infinity app?
Yes. App connectivity, remote monitoring and advanced automation are available when the heater is connected to a compatible Wi-Fi-enabled AC Infinity UIS™ controller.
Can it be used with a humidifier?
A humidifier may be used elsewhere within a properly managed growing environment, but humidifier mist must not enter the heater or its intake ducting. Do not combine the heater and humidifier within the same closed-loop ducting setup.
Intelligent Heating for Stable Indoor Growing
The AC Infinity THERMOFORGE T7 combines powerful 1000W heating, adaptive AI programming and flexible dual-duct installation to deliver precise temperature and VPD control. With ten genuine heating levels, fresh air mode and smart UIS™ compatibility, it provides a professional solution for protecting indoor plants from cold conditions and maintaining a more consistent growing climate.
