Growing in Winter. Temp-humidity problem

Hello I grow it in winter, the temperature in the garage where the grow box is located is around 0° when I use an electric heater with a blower, the humidity inside drops dramatically. however, when I use an oil radiator, the temperature is 19/20 degrees and when I try to increase the power, the plants that are close to it burn... do you have any advice? Regards

Get a humidifier and get them Temps up.

Try ceramic tube heaters which will be low down and not touching the plants and heat mats under the pots and make sure the tent is not sat on a concrete floor.

I'd also cover the tent to reduce heat loss from the tent walls and ceiling

If your humidity is still super low after all that add a humidifier

LEMONlemon123 said:

Hello I grow it in winter, the temperature in the garage where the grow box is located is around 0° when I use an electric heater with a blower, the humidity inside drops dramatically. however, when I use an oil radiator, the temperature is 19/20 degrees and when I try to increase the power, the plants that are close to it burn... do you have any advice? Regards

Click to expand...

Well, you could try a humidifier. How close is the heater to the plants? Have you tried using a small fan to direct the heat away from the plant?

All the above, and HPS for the radiant heat?
Seal air leaks, garage doors can be terrible.

Whats the ventilation setup?

the radiator is very close because that's all I have in the grow box, but there's another problem... worse... I used a blower with a heater and the thermostat was set to 22 degrees, it blew to 41... luckily, I took it out after a few hours, but my 2 plants were they got injured, the augladaja are now in their 7th week of life (car lsd, car big devil), do you think the flowers will swell or will they shrink?

Hid is your friend in cold climates, the limited wattage required for vegging doesn't give off much heat with led.
Cfl/t5s or a 250w hid are ideal for seeds, seedlings and early vegging it's heat and light for 250w.

If you use combustion as heating method youll get both heat and humidity, but also co2. However too much co2 isnt good either.
@Moflow is my main goto guy for growing in the cold. I think he uses heating mats.

what do you think about plants? Will there be any more of them? Isn't it worth counting on nice flowers?

coreywebster said:

Try ceramic tube heaters which will be low down and not touching the plants and heat mats under the pots and make sure the tent is not sat on a concrete floor.

I'd also cover the tent to reduce heat loss from the tent walls and ceiling

If your humidity is still super low after all that add a humidifier

Click to expand...

Shut that door! Lol
4ft x 4ft tent. Insulation on floor with a heatmat, then the pots on top of that.
Extraction consists of a 3" 12v pc fan.
A fan above the light blowing any heat downwards.

Polystyrene on top of pots.
The light has just turned on so temperature will rise.



Tent door.

Cardboard with polystyrene

Then bubble wrap.

Then foiled back thermal bubble wrap

With polystyrene sheets on top to be sure..
I grow in DIY soil.
You can use a meat thermometer to test the soil temps. Warm roots = decent growth.

I wouldn't recommend my method unless you do Not know what you are doing. Lol