AC InfinityTHERMOFORGE T3, Environmental Grow Tent Heater with VPD Temperature Controller, 10-Level PTC Heating and Included Extension Hose for Tents, Rooms, Greenhouses

Used this for a 8x4x6 grow tent. Does amazing, depending on fan settings it’s surprisingly quiet. Very user friendly and keeps my temperatures in their target ranges (70F-74F)The temperature probes are extremely accurate and match up almost exactly as what my hydrometer reads.Love this brand!

Works great! Easy to set up and use. Heats my 8 x 8 x 7 tent quick and efficiently. Works well with the Controller AI, 69+ Pro Controller, or use it by itself with the temp/humidity probe.A little rumble sound when its running, but nothing loud or over bearing. I suggest plugging it straight into the wall socket, not a power strip!The hose is long enough to reach into the tent from the outside! Remember, heat rises so put the hose on the floor of the tent for best results.

i love this product for my indoor grow tents. i use them on my 2x2 and my 5x5. it doesnt seem to struggle at all to heat my 5x5 just the same as my 2x2. amazing product, highly recommend, especially if you have an AC INFINITY Controller to pair with it. i use the AI controller with CO2 sensors and it is an amazing pair

I love AC INFINITY products and their customer service is incredible! This heater serves as a perfect example, I used it every day, consistently in the New England winter and it kept my grow tent a perfect toasty 80 degrees Fahrenheit even when the temperature outside the tent was at least 50-60 degrees, it had no problems being in operation 24/7 for the entirety of winter and fall. I haven't tested above 80 because I don't have the need to but still it can definitely get you to temps below 85. Not loud at all, sounds like a fan at low speed so you wont get headaches from this, with the ACI Controller you can program it to do whatever you want, but even if you don't have one you can still control it with the actual Unit. I also bought one to use in my moms room to make sure her room didn't get too cold in the winter, helped the room get to 65-70 when the home heating couldn't! I don't see it having any problems next season, as it went months operating constantly without any issues, but ACI has great customer service and if anything DID go wrong I imagine they'd take care of you. As someone who has everything AC Infinity I can definitely say I back them up.

I am warming a 4x4 in a 52 degree garage. The heater will not get above 63 well it is placed outside the tent. I decided to move it to the inside so it will be heating warmer air. It did the trick. I ve had no problems maintaining the temperature seen moving the heater.

I use this to keep the temperature in my grow tent at a specific temp and this heater has not failed once. I use these with my AC Infinity control hub so I can monitor the temp. It's always spot on, or if it does vary, it's only by 1 or 2 degrees. Not substantial enough to worry about. There's going to be some deviance. The unit itself seems fragile. I wouldn't suggest moving it around too much. The unit does not overheat either. I check it periodically to ensure it isn't overheating since it's on 24/7. I highly recommend the AC Infinity line of products (even though the are a Chinese company) because their devices all get along nicely and I can monitor environmental conditions whenever I want to. I wanted something I could use to manage all the devices in my tent, to include the grow light, the humidifier, the heater, the fans, and the dehumidifier, which is NOT an AC Infinity product. Also, I can easily scale up if I want to use a bigger tent. Overall, it's easy to give their products a 5 star rating, for now. We'll see how durable these devices are after being used 24/7 for a couple of grow cycles. Maybe I'll revise this then.

So easy to setup and control. Works wonders in my basement 4x8. Safe reliable no issues

So I ordered one of these probably a month and a half or so ago set it all up it was working okay for about 8 hours and then so I had it on the auto mode and it just would not show anything temperature or humidity or everything it promises to do it's supposed to sense that he on and off like a thermostat with this little bulb so I sent it back and it was replaced and then this one I've had going probably for over 3 weeks it was okay but one other thing I don't like about it I have a 4x4 can't it's not really big even on high with an ambient temperature of 61°, it could not even reach 70°. Inside and closed 4x4 mind you so yeah it'll work if you run it on on all the time but that's not the point it's supposed to on and off in the parameters that you set humidity PDF blah blah blah but it's doing the same symptoms the first one did except it took about 3 weeks longer and then it doesn't even heat that well it can't keep up in a 4x410 at 60 degrees it's even maintain 70 something's wrong there but anyway that's not my big gripe my big gripe is the same thing it just starts losing the automatic function which I like to set parameters for what the temperature is so I guess in a nutshell I would probably highly recommend steering away from this thing and I do like a lot of stuff about Viva son but that thermal proheater yeah after getting the second one and it does the same thing within 3 weeks yeah there's an issue there so I I rarely write reviews on Amazon and I ordered thousands of dollars thousands of dollars yearly from them and I probably only had about well since probably 2010 maybe five things that I've actually written a bad review about and I order a lot for my company and my personal stuff but yeah I would say no to this ever again so I'm a single back with the old little heater and put a thermometer in there and let that work because this thing is drove me nuts I've even insulated the thing the tube want again it's not if it can't keep up 10° difference at 60 degrees that's an issue and when it this is the second one I've had within them a month and a half to two months and an automotive just blanks out and that it will work on on the only problem is it's on all the time so unless you're going to sit out there and turn it on and off you're going to ruin your plants so yeah I would highly stay clear of this