AC Infinity THERMOFORGE T3, Environmental Grow Tent Heater with VPD Temperature Controller, 10-Level PTC Heating and Included

4.4 4.4 out of 5 stars | 274 ratings

Price: 99

Last update: 03-21-2025


About this item

First-of-its-kind heater designed from the ground up with precision smart controls for ideal grow conditions.
Onboard controller with corded sensor probe sets VPD and temperature triggers, timers, and cycles.
Cutting-edge PTC plate technology offers 10 distinct heat levels using PWM control to finely tailor temperature.
Flexible hose with additional 4 ft. attachment directs heat to focused areas within your grow space.
Go beyond on/off smart outlets by integrating with our UIS controllers for true 0-100% output control.

Product information


Top reviews from the United States

  • TW
    5.0 out of 5 stars Finally!!! A safe and effective grow tent heater.
    Reviewed in the United States on October 28, 2024
    I’ve been looking for something like this for years and it works perfectly. My temperature and humidity (using AC Infinity humidifier) are perfect day and night. I’ve been extremely impressed with AC Infinity and this lives up to the same high standards. A true bargain at under $100. It doesn’t use up any tent space, it’s quiet, it’s very accurate and programmable with the AC Infinity Controller 69 Pro Plus. I found it easy to program too. Brings the tent up to temperature quickly. A must have for anyone growing in a cold basement.
  • Mike gillespie
    5.0 out of 5 stars It’s AC infinity!! 100000%
    Reviewed in the United States on December 18, 2024
    this company is really really really busy in the R&D department. Everything I’ve gotten from them in the past several months has maximized my grow!

    In my detached garage I made an insulated room 5x5x6. When the driver is off this provides more than enough heat! For the money you can’t beat it! Already assembled out if the box! Excellent product,value, and it fits outside my room!
  • Steve R
    5.0 out of 5 stars Phenomenal
    Reviewed in the United States on January 6, 2025
    Great grow tent heater. Helps achieve appropriate VPD that I have my control hub set to! Makes my grows much happier when the VPD is dialed in!
  • Amazon Customer
    5.0 out of 5 stars Just in time for winter!
    Reviewed in the United States on December 24, 2024
    I'm very pleased with this heater. Simply a must-have for anyone running an AC Infinity system. Iny screenshot, you can see how it is doing a great job keeping consistent temperatures in the coldest weather we have had in years. Absolutely worth the investment if you live anywhere above 40° latitude.
    Customer image
    Amazon Customer
    5.0 out of 5 stars Just in time for winter!
    Reviewed in the United States on December 24, 2024
    I'm very pleased with this heater. Simply a must-have for anyone running an AC Infinity system. Iny screenshot, you can see how it is doing a great job keeping consistent temperatures in the coldest weather we have had in years. Absolutely worth the investment if you live anywhere above 40° latitude.
    Images in this review
    Customer image Customer image
  • AMY HEAD
    1.0 out of 5 stars DOES NOT WORK
    Reviewed in the United States on November 21, 2024
    Have had this heater for a month and a couple days and it does not work. I have had to completely reset the entire control and heater two times not to make it be able to get to temperature even at max level. The first time, it went back to working as it should with my max level at 5. This time, it did not go back to working as it should at level 5, so it was increased to 7. Still not making target temp. Upped to max level 10. Surrounding area is 68 degrees, yet it is unable to make it to target temp of 73. 5 degrees. It can not even maintain 5 degrees in a small and controlled environment. You are better off buying a smart plug and a regular heater to maintain your heat. It blows out cool air half the time and the max level air pressure is very poor. Very upset that I spent so much money on the entire system for what is suppose to be a nice and well known system to not even be able to maintain a steady temperature that is a 5 degree difference. Do not buy
    Customer image
    AMY HEAD
    1.0 out of 5 stars DOES NOT WORK
    Reviewed in the United States on November 21, 2024
    Have had this heater for a month and a couple days and it does not work. I have had to completely reset the entire control and heater two times not to make it be able to get to temperature even at max level. The first time, it went back to working as it should with my max level at 5. This time, it did not go back to working as it should at level 5, so it was increased to 7. Still not making target temp. Upped to max level 10. Surrounding area is 68 degrees, yet it is unable to make it to target temp of 73. 5 degrees. It can not even maintain 5 degrees in a small and controlled environment. You are better off buying a smart plug and a regular heater to maintain your heat. It blows out cool air half the time and the max level air pressure is very poor. Very upset that I spent so much money on the entire system for what is suppose to be a nice and well known system to not even be able to maintain a steady temperature that is a 5 degree difference. Do not buy
    Images in this review
    Customer image
  • Josh Chinn
    5.0 out of 5 stars Fantastic!
    Reviewed in the United States on December 22, 2024
    Works great for a 5x5. Unit installs in about a minute or two. Very easy. Very quiet.
  • Christopher Spivey
    5.0 out of 5 stars Unit performs really well
    Reviewed in the United States on December 4, 2024
    I have a Vivosun setup but they do not sell a tent heater specifically like this brand does. I do not have it hooked to a controller or anything so I make sure that it is well calibrated with my Vivosun equipment based on the probe sensors to make sure that it does not start cooking the tent. Based on my experience with the device that it can maintain about a 20 degree difference from the outside ambient air. I use this in my garage where when it was about 20 outside, the garage would run at about 45 degrees and the heater could hold the tent to about 70. Eventually bought a heater for garage so that this unit did not have to work as hard and burnout. I like the fact the unit sits outside and feeds in tubing to the tent. Keeps the inside of tents cleaner with fewer electronics.
  • Chris Law
    4.0 out of 5 stars good
    Reviewed in the United States on October 13, 2024
    good but can't keep the heat whare i won't it the heat just keeps climbing hotter than i set it .

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