Temperature Control: Heating & Cooling
Grow Room Temperature
Grow room temperature is one of the most important things to successfully growing great medical cannabis. While cannabis will grow in temperatures ranging from 60*F to 85*F, they will grow at their best in a 70*F 75*F when using a HID bulb set up or 75*F to 80*F if you are running an intense LED light. If you can keep your growing environment within these optimal ranges your cannabis will thrive and produce top quality buds.
A stand alone unit like pictured to the right works perfect for cooling a grow space. They don't make a lot of noise and they can be exhausted out a window, into the attic, or even another room. While they can be a little pricey at $200-$300 USD it will be worth it in the long run. While a window mounted unit will work and is less expensive. They are much louder and do not cool as efficiently.
Oil heaters and Cabin Heaters
When it comes to heaters for a small space I always recommend the old school oil heaters. They give off a nice even heat that doesn't burn cannabis plants unlike a space heater. If you attempting to heat a space larger than say 8'x8' then I would move up to a cabin heater. Cabin heaters have a very accurate temperature control and hold a consistent temperature without hot spots. Both of these types of heaters are most cost effective and energy efficient. Stay away from space heaters.