UK - Cold air intake...

Hi everyone

I live in the UK and as it's minus -5 outside, by the time my intake gets the air into my tent the temperature of it is 6 degrees. The steady overall temperature of the space is 24 - 25 degree with the lights on top.

I suppose aside from fan speed controllers (it's already on a variac) or allowing my air conditioning unit to cool the room the tent is in instead (more control over temperatures) and just using a passive intake - is there anything that I could be doing here I am not already doing ?

The concern is that 6 degrees (42.8f for our American counterparts) is too cold for the girls; even though it's getting mixed up by the fans you can see.

Thanks in advance

K

Hi Kieron, I'm confused, isn't your tent in a room indoors ? You could be getting air intake from the room. If the tent is outside, in a shed or garage or whatever, how do you manage lights-off temperatures ?

The tent is indoors.

I've tried air cooling the hoods with air from outside and the temperature in the tent is 30 C - intake from outside cools the tent down to 24 C which is obviously better.

There is a CF filter attached to the exhaust venting the hot air at the top of the tent.

I suppose turning the intake off completely and just controlling the room temperature with the AC is an option - but that's effectively what happened when I used the intake to cool the hoods which resulted in the higher 30 C, room temperature was about 20 C at this time.

The AC goes down to 16 C so taking off those extra 4 C of cooling from that 30 C me at a resting temperature of 26 C which is higher than I currently have.

It seems running the AC in winter to gain a higher temperature is wrong on so many levels !

I'm sure there is a better way to rig this set up.

you could try blending the volume of outside and inside air at the intake ? Just getting a percentage of cold outside air in.

Or, if you're using that room just for the grow, have the outside cold air adjust the room temperature instead of the AC.

That's exactly what I am doing now.

I have a fan diffusing that air across the underneath of the lights where the radiant heat hits the plants.

I just hope that colder air isn't going to upset them into thinking it winter and hence cause stress / prevent growth.