The AC Infinity Thermoforge T7 is a 1000 W precision plant heater that holds your grow space at a set temperature or VPD instead of blasting heat on and off. Individual PTC plates under 10-level PWM control let it throttle in small steps, and adaptive AI learns how your space behaves, anticipates swings and adjusts output before the temperature drifts. The sensor probe and temperature and VPD triggers are all onboard, so it runs a controlled climate straight out of the box, and it plugs into any AC Infinity UIS controller when you want the app. Quick Bloom Lights is the official Australian importer: stocked in Sydney, shipped domestically.
Intelligent climate control for every growth stage
Most tent heaters are thermostats with a fan: full power until the target is hit, off, then full power again, and the space swings around the set point all night. The T7 works differently. Its PTC plates are driven through 10 true heat levels, so it can sit at a low level and feed in exactly the warmth the space is losing. The result is a steady temperature rather than a saw-tooth, and because it only draws what the current level needs, it is economical to run — it reaches its full 1000 W only when it has to.
Set a temperature target, or set a VPD target and let it factor in humidity from the included 3.66 m sensor probe. Tap the display button to read in °F, °C or kPa. Switch to fan mode and the same unit becomes a 10-level fresh-air intake with no heat at all.
Adaptive AI for predictive climate management
In heat mode, the AI setting analyses your space's climate patterns over time. It learns how quickly the space loses heat, anticipates the spikes and dips — lights off, a cold night, the exhaust fan ramping up — and adjusts heat levels in precise percentages to hold your target. Instead of overshooting and correcting, it settles on the set point and stays there, which is exactly what you want when you are managing VPD.
Dual airflow modes and flexible ducting options
Two 100 mm (4″) ports give you two ways to set it up. Open loop: the heater draws room air and ducts warm air into the tent — simple, and it doubles as fresh-air intake in fan mode. Closed loop: duct both ports to the tent so the T7 recirculates and re-warms the tent's own air. Closed loop is the most efficient way to heat, because the unit is topping up air that is already warm instead of starting from room temperature every pass.
Getting the best from it
The T7 is at its best holding a space a few degrees above the room around it, precisely and around the clock. It is a precision heater rather than a furnace, so set expectations accordingly: in a cold room of around 10 °C it will not lift a tent to a smooth, steady 29 °C on its own. Give it a head start and it performs brilliantly — run it closed loop, keep the tent zipped, take the chill off the room itself, and let the T7 do the fine control.
It will certainly help a cold room, but where it really earns its place is maintaining and controlling a stable environment. Pair it with a humidifier, a dehumidifier and air conditioning and it becomes the heating side of a complete climate setup: the T7 holds temperature and VPD precisely while the other units look after moisture and cooling, and together they keep the space exactly where you want it.
Full specifications
| Manufacturer | AC Infinity Inc. |
| Product / model | Thermoforge T7 / AC-SFT7 |
| UPC | 819137024502 |
| Maximum power | 1000 W |
| Voltage / plug | 240 V AC, Australian plug |
| Heating element | Individual PTC plates, 10-level PWM control |
| Modes | Heat (with AI), fan / fresh-air intake |
| Onboard triggers | Temperature, VPD |
| Rated grow space | Up to 3 × 3 m (10 × 10 ft) |
| Duct size | 100 mm (4″), two ports; heat-resistant ducting only, not included |
| Dimensions | 220 × 178 × 254 mm (8.66 × 7.00 × 10.00″) |
| Sensor probe | Temperature and humidity, 3.66 m (12 ft) lead |
| Power cord | 2.44 m (8 ft) |
| Operating temperature | −10 to 60 °C (14 to 140 °F) |
| Operating humidity | 30–65% RH, including incoming air |
| Safety | ETL certified; tip-over alarm, overheat protection with auto-restart, faulty-system alert, flame-retardant materials |
| Connectivity | UIS port for AC Infinity controllers |
| Guides | Quick start guide (PDF) · Programming guide |
FAQ
Will it heat my tent from a cold room?
It will help a cold room, but it is built for precision rather than brute force. From a room of around 10 °C it will not bring a tent to a smooth, steady 29 °C on its own. Run it closed loop, keep the tent sealed and take the chill off the room, and it will hold your target tightly all night.
What size space does it suit?
AC Infinity rate it for grow spaces up to 3 × 3 m (10 × 10 ft). How far it can lift the temperature in practice depends on how cold the surrounding room is and how well the space holds heat, so smaller, sealed spaces get the most from it.
Do I need a separate controller?
No. The sensor probe, temperature and VPD triggers and the AI setting are all onboard. A UIS controller is an optional add-on for app control, logging and alerts.
Open loop or closed loop?
Closed loop for the best heating efficiency, since the unit re-warms air that is already warm. Open loop if you also want to bring fresh room air into the tent, which the T7 can do with or without heat.
What ducting do I need?
100 mm (4″) ducting that is rated heat-resistant — one run for open loop, two for closed loop. Ducting is not included, so check the rating on whatever ducting you use before connecting it.
Can I run it off an extension lead or power board?
No. AC Infinity specify plugging it directly into a grounded wall outlet, ideally with surge protection. It ships with an Australian plug for 240 V.
Is there a humidity limit?
Yes. It is rated for 30–65% RH, and that includes the air it draws in, so keep it out of very humid spaces. It is for indoor use only.
Is this genuine AC Infinity stock with Australian warranty?
Yes. Quick Bloom Lights is the official Australian importer and distributor for AC Infinity. Stock is held in Sydney, orders ship domestically, and warranty is handled here rather than through an overseas seller.