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

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.

Works perfectly for my 3x5 tent in conjunction with AC Infinity's Controller 69 Pro. Enough trunk hose for easy installation andsmall footprint outside the tent. The air is never hot, gentle warmth for the girls but plenty of power for the chilly nights.Great addition to AC Infinity's line of outstanding products.

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.

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.

Works very well but a bit on the noisy side.

Works from other side of wall,saves space and not hazard or in way. Works wonderfully when you finally figure out how to set it. Manual was evidently written by someone who was educated beyond his ability to explain clear idea of how to get the most out of heater. I sat around and played with heater to figure what would work for me. Even being off in a tiny setting can mess you up. I found a set-up that works for me, and at some point I hope to figure out how to do more. Have not found any useful info on net other than crappy manual. I did figure out what will work for me. I really like this heater! Would not have any other

Very easy to set up and use. Temperature in my grow tent is good when lights are off.

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