Winter ...

[melon]

Hi guys,
I will be growing in the attic under 250W hps in tent 60x60 ans 120 cm height (2 by 2 feet and 4 feet high). Temp when the light is on is about 27C ( about perfect) but when the lights go off, it drops down to 10-12C do you have any ideas how to higher the temp by 5 degrees without using too much electricity ?? ( I dont have enough money to use a big electric heater that consumes 2kw/hr)
Peace
Melon

 

[FreezerBoy]

Run lamps at night when it's colder. Shut lamps off late morning/early afternoon so the sun heats up the attic.

 

[hilbie]

id be enthusiastic about the grow, almost all cannabis turns purple with temps down into the 50s, buy the cheapest space heater at target for like 30 bucks and set it the lowest setting, putt a hi low temp recording thermometer in there a week before the grow and experiment with setting so u get an understanding of the extremes, but expect purple high bag appeal nugs-