Ok , Plants have a " Wellnesstemperature" its between 22-27 Degree. Under 20 Degree/Celsius the Growth slows down. Over 28 Degree the Plant is stressed and slows down too ( and more) Your Goal is to his the Space between to have an Optimal Grow. But it not only the Temperature. Temperature and Humidity goes Hand in Hand. they depend in each other. Its called Vapor Pressure Deficit (VPD) there is anice Chart where you can look wich Temperature and Humidity you need in each Stage of your Grow. I will post it in the Comments
http://www.just4growers.com/media/23631/vpd_2degree.gif
Do you have the Possibility to isolate your Growroom=? so that hte Heat stays inside=? Its the easiest way /and the Cheapest to look for Materials to isolate the Room / tent.
For more dare to ask per Pm or in the comments
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