Grow room temps control issues

Hey All,

Happy New Year!

So first of all I need to complain to everyone here at RIU for introducing us (well mainly me) to GPS. Now the Mrs. thinks i'm obsessed with buying seeds. We and I mean together have purchased around $200 in total (after discounts) at 2 vendor sites, and now I have an online shopping addiction. Simply because i'm checking the site for new discounts & reverse auction postings. Kidding but not kidding, as I'm sort of in the doghouse.

Back to our issue:

Our grow room is seeing temps diving down into the high 40's this week as it's going to be negative numbers this week. We have a space heater and were thinking about using it in the room rather than in the tent. This is because of the size of the heater. It's a 2.5 foot vertical rectangular cube, which may be too hot for the tent.And just close the room so the heat can be contained in that room.

Does anyone have experience with this? We're more then a little concerned with leaving stand alone heater on without supervision. We can confirm that nothing will be within range of it while it's operating.

The other option would be to turn the fan off that sucks air out of the tent for periods of time. Thoughts on that also?

Cheers!
MM's

My furnace went out at my house for like 4 days. Temp in my house was like 30f when it was - outside. Temps in box was low 46f with 24hr lights on. I ended up making some kind of heater for the box. a coffee can with holes drilled out and a 40w regular light bulb . Got the temps in the box up to 74 with that little heater instead of using a space heater that cosumes a shyt ton of watts like 800w. And would overkill the grow to over 100f.
I also picked up a blacked out 100w heater bulb that emits no light for 10 bucks and switched out the bulbs got me up to 80f comfortly and was still able to run the ventilation with no major temp swings

Don't you get those panel heaters that go on the wall? I think they draw like 300W or something, they have a thermostat in that controls temp to about 25 degrees C I think,

Okay sounds like we're going to home Depot today.

Or did you go elsewhere for the heated bulbs?

Also where did you place them in the tent

Another question.

Switching to 24/0 from 18/6. Will this stress the plants out?

Mass Medicinals said:

Okay sounds like we're going to home Depot today.

Or did you go elsewhere for the heated bulbs?
Also where did you place them in the tent

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I bought mine off of Amazon. Also With a humidifier so I had to wait 2 days
Home depot might have em but might have better luck going to a pet store
I used the black bulb for one day since I fixed my furnace, so I was using the 40w light bulb. I had it like 8 inches away.

Mass Medicinals said:

Another question.

Switching to 24/0 from 18/6. Will this stress the plants out?

Click to expand...

That shouldn't stress the plant. I was guna change light cycles hence why I got the blacked out bulb. I knew I couldn't change light cycles using a light bulb for a heater lol

any kind of heater will work ok, as long as you put it in a safe spot, where its not going to be blowing on anything directly.
they will lower the humidity in your grow area though. keep that in mind when using a heater.
also, instead of turning off the exhaust fan, turn it down...
https://www.ebay.com/itm/For-Router-Fan-Variable-Speed-Controller-Electric-Motor-Rheostat-AC-120V-Newest/291998158232?epid=552414638&hash=item43fc724d98:g:4S0AAOSwt5hYd0Kq
i run mine at about 75% during the day and about 25% at night, just flip the switch from full to variable when the lights go off

We changed the light to 24 hours, and turned the top fan off, and opened the door slightly. It's a lot warmer now. down side they all look really sad and are sagging. Like when plants are over watered.

Hope we didn't ruin this run because of a couple uncontrolled cold nights.

Mass Medicinals said:

We changed the light to 24 hours, and turned the top fan off, and opened the door slightly. It's a lot warmer now. down side they all look really sad and are sagging. Like when plants are over watered.

Hope we didn't ruin this run because of a couple uncontrolled cold nights.

Click to expand...

I feel for ya. Good luck! Hope it all works out

a heating pad will give bottom heat.

They look a lot happier today. We also have a number of different seed packs arriving this week. At this point we have SSH at the start of vegging. This may be our best way to keep the temps up until the sub-zero nights are gone.