Searching for a 4 inch ducted space heater!

Rickcin · Jun 21, 2021

I have a 2x4x6 grow tent in a large basement and the basements temperature is fairly constant at 65 degrees +/-.

I was hoping to find a small space heated with a 4 inch duct that I could run directly into the tent to boost the heat and I don’t believe anything like that exists.
I’m guessing I will just have to place a space heater outside facing one end of the tent and then thinking I will need a small humidifier inside the tent since the heater will substantially lower the humidity.

This must be a common problem when growing in a tent that’s within another space?

Also wondering if there’s a good temperate/humidity gauge I could leave in the tent and check it via Bluetooth that would save me from going up and down a full flight of stairs all day? Thanks

ComfortablyNumb · Jun 21, 2021

I would leave it at that temp. Just adjust the RH if needed.
Most plants like it cooler. It's one less problem you will have to worry about.

ComfortablyNumb · Jun 21, 2021

Wireless digital hygrometer

http://www.walmart.com/ip/Govee-WiF...ireless-Digital-Indoor-Hygrometer-T/141933944

Anthem · Jun 21, 2021

Rickcin said:
I have a 2x4x6 grow tent in a large basement and the basements temperature is fairly constant at 65 degrees +/-.

I was hoping to find a small space heated with a 4 inch duct that I could run directly into the tent to boost the heat and I don’t believe anything like that exists.
I’m guessing I will just have to place a space heater outside facing one end of the tent and then thinking I will need a small humidifier inside the tent since the heater will substantially lower the humidity.

This must be a common problem when growing in a tent that’s within another space?

Also wondering if there’s a good temperate/humidity gauge I could leave in the tent and check it via Bluetooth that would save me from going up and down a full flight of stairs all day? Thanks

65 is too low for either HPS or LED. HPS you want to shoot for 78 degrees with light on. With LED you can run up to about 84 degrees, but 81 to 82 will work.

Rickcin · Jun 21, 2021

Anthem said:
65 is too low for either HPS or LED. HPS you want to shoot for 78 degrees with light on. With LED you can run up to about 84 degrees, but 81 to 82 will work.

I thought the desired growing temperature was 65 at night and around 70 during the day?

Anthem · Jun 21, 2021

Rickcin said:
I thought the desired growing temperature was 65 at night and around 70 during the day?

Way too low. Those are legit numbers 100 percent!

ComfortablyNumb · Jun 21, 2021

The lights are going to heat it up.
Starting on the cool side is a bonus. It's easier to heat than cool.

Anthem · Jun 21, 2021

ComfortablyNumb said:
The lights are going to heat it up.
Starting on the cool side is a bonus. It's easier to heat than cool.

Yes that is why I said 78 degrees lights on with HPS and up to 84 with LED's.

Rickcin · Jun 21, 2021

Anthem said:
Yes that is why I said 78 degrees lights on with HPS and up to 84 with LED's.

Why higher with LED’s? Now I’m guessing I will need a space heater outside the tent and maybe a humidifier inside.

Rickcin · Jun 21, 2021

ComfortablyNumb said:
The lights are going to heat it up.
Starting on the cool side is a bonus. It's easier to heat than cool.

I’m at 73 degrees with a heat mat and the 1500 watt LED

Anthem · Jun 21, 2021

Rickcin said:
Why higher with LED’s? Now I’m guessing I will need a space heater outside the tent and maybe a humidifier inside.

HPS gives off more UV and it heats the leaf surface. LED's typically do not give off much UV so you have to raise the room temperature to get the leaf temperature into the correct range.

Anthem · Jun 21, 2021

Rickcin said:
I’m at 73 degrees with a heat mat and the 1500 watt LED

I am not aware of any true 1500 watt LED's. What brand it is?

ComfortablyNumb · Jun 21, 2021

Plants grow best between 68 and 77 deg F from what I've learned. That is the temp where they are most active. Some plants like a higher temp (Cactus for example) and some won't bloom unless it's snowing. Cannabis falls right in the low to mid 70's range. How you get it there is up to you. Our lights are enough to push the temp 10-15 deg F on an average day. So for us, 65 is perfect.

Anthem · Jun 21, 2021

ComfortablyNumb said:
Plants grow best between 68 and 77 deg F from what I've learned. That is the temp where they are most active. Some plants like a higher temp (Cactus for example) and some won't bloom unless it's snowing. Cannabis falls right in the low to mid 70's range. How you get it there is up to you. Our lights are enough to push the temp 15 deg F on an average day. So for me, 65 is perfect.

@1diesel1 does this sound correct to you ?

Rickcin · Jun 21, 2021

Anthem said:
I am not aware of any true 1500 watt LED's. What brand it is?

Rickcin · Jun 21, 2021

Anthem said:
@1diesel1 does this sound correct to you ?

I’m averaging 73 with a heating mat but guessing the mat adds very little!

ComfortablyNumb · Jun 21, 2021

You're actually going to get around 650w from that light.
It has the correct numbers to claim 1500, but that's not how they really work.

Anthem · Jun 21, 2021

ComfortablyNumb said:
You're actually going to get around 650w from that light.
It has the correct numbers to claim 1500, but that's not how they really work.

Wrong once again. The spec state 260 watts for the 1500w model. If it was 650watts it would be on par with Gavita 1700e, Fluence Syder 2i or HLG Diablo

1diesel1 · Jun 21, 2021

Anthem said:
@1diesel1 does this sound correct to you ?

So many angles at this question,
Indoor is a hole different monster in itself.
Environment, genetics it all has to mesh together correctly for your grow.
68f in my opinion is to cold for veg and flower up to week 6/7. Typically I’m in the 73-77f range through veg and week 6 of bloom.
I’ll drop the temperature to 68-71f the last weeks to mimic the coming of autumn.
I feel the plants finish out closer to what Mother Nature intended.

SDJ99 · Jun 21, 2021

I really really don’t think you need a space heater. Put wire shelving in the bottom to keep them off the ground (I just repurposed mine from a cheap greenhouse). That will keep your roots from being too cool. The light will cover your heating needs!!! 16 hours/18 hours of light will bring the heat up enough for it to stay warm while the light is off). I found my plants are fairly good at keeping their humidity and temperature pretty consistent in my basement. I have the same size grow tent. Something to consider is the Mylar, being so highly reflective, helping with efficiency, but also as an insulator. I’d be more worried about circulating air AROUND your grow tent. Do some small oscillating fans, a normal, cheap intake fan, and spend your money on the carbon air filter/scrubber and exhaust fan setup.
Heat and humidity are inversely proportional. When heat is high, humidity is often low and raising humidity will lower temperatures. (The leaves expel water to cool themselves). A super cheap way to raise humidity in your grow tent is literally just a glass bowl of water in the bottom. It won’t solve major humidity issues, but it will help some.
I’m a first time grower and avid researcher and this is just what I’ve gathered that’s helped me the most.
don’t spend money that you don’t have to!

Searching for a 4 inch ducted space heater!

Searching for a 4 inch ducted space heater!

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