Leave the door open and no fan.

Sounds like a plan... I actually forgot to water tonight, so I think I will just water the few that like to be watered more frequently and call it. I don't have time for all of it.

Deva, how long do you usually run your timer for your lights each day?

Two each of there own I recon .. Lights and fan are on the same timer here regardless of the inside temps. ( ** edited in after digital thermometer checking ) After less than three feet away a low speed fan helps to circulate the warmer lighting and tends to move air that's apx the same as room temps.

Like Nomen, mine are both connected via a timer

I have one fan running always (40W @ lowest setting), one on a timer (66W @ lowest setting), and one I run for two days after watering (47W @ lowest setting).

The first fan is less than 1ft away from my primary setup, the second is very large and on a different floor blowing air into the area, and the third is on a table 3ft away from my secondary setup.

My lights are on timers as well. The fan combination helps reduce peak air temp under lights to just 4°C higher than ambient.

I keep the lights on for 12 hours. I didn't sent up the fans, and after I left town I realized I forgot to set the heat. However we haven't turned on our heat all winter. We live on the 3rd floor so we get a little warm up from the apartments below.

Does it matter if they are in a cool or a warm place if you are providing water and light? Initially I thought since most of the plants are asleep, no light, cool place and less watering made sense. But Ive wintered my plants in my room with lots of light, and water every 2 weeks and everthings been fine. Now, this is the first winter they are in an unfinished basement, I think the temp is around 15c, they have light and I water them once 2 or 3 weeks. The only problem that has popped up are mealies. There are spiders all over my plants and webs but they are being useless and not touching the mealies. I even saw a ladybug which has done nothing. I sprayed lots of hort oil before leaving for 2 week vacation. Im assuming the fan is for that?

Nametaken - I find temperatures make a big difference.

In very warm temperatures around 30C ambient, watering is every 2 days. By 25C it was just over 3 days. And at 20C it is 5 days.

This was with nearly constant light (give or take 1-2 hrs light exposure difference).