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AC Infinity Thermoforge Ducted Ceramic Heater
Controlled warm air enters the growing area through ducting with the AC Infinity Thermoforge Ducted Ceramic Heater, keeping an exposed heater outside the plant space through cold nights and unheated rooms. Both models combine a PTC ceramic element, variable fan and climate probe, allowing heat to respond to temperature or vapour pressure deficit rather than simply switching at full output. The smaller and larger models differ in heating capacity, duct arrangement and control features, with exact output, coverage and dimensions kept in Technical Specifications.
Positive temperature coefficient ceramic increases in electrical resistance as it heats, naturally reducing current as the element approaches its operating temperature. A blower moves air across the finned element and into the duct, so warmth is carried into the grow space by airflow. AC Infinity control both fan and heat over ten levels using pulse width modulation. This lets the unit settle at a partial output near its target instead of repeatedly cycling between full heat and off. Fan-only operation is also available when air movement is needed without added heat.
Sensor connection, ducting and onboard control differ across the AC Infinity Thermoforge family, so inclusions and model features belong in Technical Specifications. Both can operate from their own climate sensor and controls or join UIS for coordinated scheduling. The higher-output ducted model carries three purchase-critical requirements: its single sensor port accepts either the supplied probe or a UIS controller lead, never both at once; its exhaust must use AC Infinity's heat-resistant hose; and any optional intake must use flexible layered 100 mm ducting. AC Infinity also limit incoming air for this model to 65% RH and state that it must not draw from a space containing a humidifier. They govern placement beside humid grow spaces.
NOTE: Keep the heater upright on a firm, level surface in a dry indoor location, with at least 0.9 m clearance from walls, outlets, furniture, bedding, paper, clothing, curtains and other combustible material. Never obstruct the intake or exhaust, allow the body to touch the tent, or use the unit near liquids. Plug it directly into a wall outlet, not an extension lead or power board, and switch off, unplug and allow it to cool before cleaning.
Holds Temperature or VPD
Its own probe holds the target you set.
No Temperature Swings
Ten output levels replace on and off cycling.
No Hot Box Inside
The heater stands outside and ducts warmth in.
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AC Infinity Thermoforge Ducted Ceramic Heater
Key Highlights
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- Two models on one page: the T3 at 530 W with a built-in extendable hose, and the T7 at 1000 W with twin 100 mm duct ports
- Heat and fan run as separate functions on the T3, each programmed on its own across levels 1 to 10
- Self-regulating PTC ceramic elements, flameless and with no exposed glowing filament
- Corded sensor probe included with both models on a 3.66 m (144 in / 12 ft) lead, long enough to sit at canopy height with the heater outside the tent
- The T3 includes its own duct extension hose; the T7 takes a thermal resistant hose on its exhaust and, where the intake is ducted, layered 100 mm ducting - both bought separately
- The T3 carries timer, cycle, minimum and maximum level and calibration settings onboard; the T7 carries none of them and needs a UIS controller to schedule
- The T7 accepts either its sensor probe or a UIS controller lead, never both at once; the T3 keeps both connected
- Approved for the Australian market under SAA certificate EESS-250152-0, to AS/NZS 60335.2.30:2023 with AS/NZS 60335.1:2020 +A1
Directions for Use
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- Stand the heater on a firm, level, dry surface with at least 0.9 m (3 ft) clear on all sides, away from walls, outlets, furniture, bedding, paper, clothing and curtains. Never operate it on carpet, bedding or any soft surface where the vents can be blocked.
- T3: pull the built-in hose out to length and feed it through the lowest tent port, adding the supplied extension hose where a longer run is needed.
- T7: without ducting, stand the heater beside the tent and direct its exhaust vent into a lower tent port. To duct it, align the thermal resistant hose with the threading on the top exhaust port and turn it anticlockwise, as AC Infinity direct, until it seals against the inner face of the port. Intake ducting is optional; where it is used, fit flexible layered 100 mm ducting to the side intake port with a duct clamp. For a closed loop, run the exhaust to an upper tent port and the intake back from a lower one.
- Plug in the supplied sensor probe and route it to canopy height using the included mounts or ties, keeping it out of the discharge air. On the T7 only the grey probe packed with the heater may be used, as AC Infinity warn that probes packaged with other devices can damage it, and the port must be kept dry and capped whenever no probe is fitted.
- Plug the heater directly into a wall outlet with nothing else drawing from the same circuit. Never use an extension lead or a power board.
- Set the display units, then choose heat mode or fan mode and select a level from 1 to 10. Enter a temperature or VPD target where the mode calls for one.
- T3 only: set the timer, cycle, minimum and maximum levels, leaf offset and calibration offsets from the onboard menu. T7 only: switch the AI setting on - AC Infinity state that when it is active the system dynamically ramps levels as the temperature shifts further from the target.
- To run the heater from a UIS controller, connect the included male-to-male extension cord. On the T7 the probe must be unplugged first, because the single port carries either the probe or the controller lead. On either model AC Infinity note that the controller overrides all onboard settings and that a probe plugged into the controller overrides the heater's own sensor.
- Expect a faint smoke or odour on first use as manufacturing oil residue burns off the elements. AC Infinity state this is normal and should not reoccur.
- Before cleaning, switch the heater off, unplug it and wait for the heating elements and any moving parts to come to a complete stop and the unit to cool. Twist the intake vent cap off the T3 and wipe the grille and cap with a damp cloth; remove the T7 intake filter and rinse it in warm water, drying it fully before refitting. Never use detergents, solvents or chemical cleaners.
- Store the unit upright in a dry place. The T3 power cord wraps around the spool moulded into its underside.
Technical Specifications
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Thermoforge T3
- Product Model: AC-SFT3
- UPC Code: 819137024489
- Type: Ducted PTC ceramic plant heater
- Max Power Draw: 530 W
- Supply: 240 V AC, 50 Hz
- Heating Element: 3 separate PTC ceramic plates, PWM controlled
- Control Range: 10 levels, heat function and fan function (fresh air intake)
- Smart Controls: Temperature and VPD
- Onboard Modes: Heat function: Off, On, Auto low temperature trigger, VPD trigger, Timer to Off, Cycle. Fan function: Off, On, Timer to Off, Cycle
- Trigger Ranges: VPD 0 to 9.9 kPa; Auto temperature trigger 0 to 90 °C (32 to 194 °F)
- Settings: Maximum and minimum levels, controller lock and hide screen, °C or °F, leaf offset, and temperature and humidity calibration
- Grow Space Size: AC Infinity rate it for spaces up to 1.5 x 1.5 m (5 x 5 ft)
- Operating Temperature: -10 to 60 °C (14 to 140 °F)
- Operating Humidity: 30% to 85% RH; the Thermoforge series manual FAQ additionally advises keeping the heater outside the tent unless tent humidity stays below 65% RH
- Safety Cutouts and Alarms: Tilt beyond 15 degrees, pausing programming until upright; internal temperature above 90 °C (194 °F), resuming below 85 °C (185 °F); probe temperature above 60 °C (140 °F), resuming below 55 °C (131 °F). The fan function continues to run through both temperature cutouts
- Sensor: Corded thermal alloy probe on a 3.66 m (144 in / 12 ft) lead, 3.5 mm jack
- Built-In Hose: Extends 25.0 to 70.0 cm (9.84 to 27.55 in)
- Extension Hose: Extends 50.0 to 140.0 cm (19.68 to 55.11 in), 5.8 cm (2.28 in) diameter
- Unit Dimensions: 29.2 x 15.1 x 30.8 cm (11.49 x 5.94 x 12.12 in)
- Power Cord: 242.0 cm (95.27 in)
- In the Box: Heater, sensor probe, UIS extension cord (male to male), 4 probe mounts, 4 hook and loop ties, duct extension hose
- Connectivity: UIS port plus a separate 3.5 mm sensor jack, both usable at the same time
Thermoforge T7
- Product Model: AC-SFT7
- UPC Code: 819137024502
- Type: Ducted PTC ceramic plant heater, dual-port
- Max Power Draw: 1000 W
- Supply: 240 V AC, 50 Hz
- Heating Element: Individual PTC ceramic plates, PWM controlled
- Control Range: 10 levels, heat function and fan function (fresh air intake)
- Smart Controls: Temperature and VPD
- Onboard Modes: Heat mode and fan mode, each held against a temperature or VPD target. No timer or cycle programs onboard; scheduling requires a UIS controller
- Settings: AI setting, hide display, °C, °F or VPD display units, factory reset and mute sound. No calibration settings and no display lock
- Adaptive AI: AC Infinity state that when the AI setting is active the system dynamically ramps levels as the temperature shifts further from the target
- Grow Space Size: AC Infinity rate it for spaces up to 3.0 x 3.0 m (10 x 10 ft)
- Operating Temperature: -10 to 60 °C (14 to 140 °F)
- Operating Humidity: 30% to 65% RH, including incoming airflow. AC Infinity instruct that intake air never be drawn from above 65% RH or from a space containing a humidifier
- Safety Cutouts and Alarms: Tilt alarm beyond 20 degrees, pausing all programming until upright; overheat alarm, display code E1, after which AC Infinity instruct that the heater be switched off, unplugged and left to cool before restarting; faulty systems alert, display code E2
- Duct Size: 100 mm (4 in), top exhaust port and side intake port
- Ducting: Not included. Thermal resistant hose on the exhaust port; flexible layered 100 mm ducting on the intake port where intake ducting is used
- Materials: Flame-retardant construction, washable intake filter
- Sensor: Corded Sensor Probe (V2) on a 3.66 m (144 in / 12 ft) lead
- Unit Dimensions: 22.0 x 17.8 x 25.4 cm (8.66 x 7.00 x 10.00 in)
- Body Height Excluding Collar: 21.2 cm (8.34 in)
- Overall Depth Including Side Port: 26.4 cm (10.39 in)
- Power Cord: 243.8 cm (96 in / 8 ft)
- In the Box: Heater, Sensor Probe (V2), UIS extension cord (male to male), 4 wire ties, 4 hook and loop ties
- Connectivity: Single UIS port carrying either the sensor probe or a UIS controller lead, never both at once
All Models
- Heating Technology: Self-regulating PTC ceramic with pulse width modulated output
- Australian Approval: SAA certificate EESS-250152-0, to AS/NZS 60335.2.30:2023 with AS/NZS 60335.1:2020 +A1. Issued 27 March 2025, valid to 27 March 2030
- Certificate Markings Required: CCS-250152-EA per the NSW regulatory requirement, and the RCM logo per AS/NZS 4417.1 and 2 and the EESS requirement
- Ingress Protection: IPX0, dry indoor locations only
- Minimum Clearance: 0.9 m (3 ft) on all sides from walls, outlets, furniture and anything else that may catch fire, per the Thermoforge series manual
- Platform: UIS, male-to-male extension cord included
- Warranty: 2 Years
Shipping & Returns
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We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@hydrooasis.com.au
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@hydrooasis.com.au.
Size: 1000 W
