I included a large drop down hinged vent window which I understand is important. Also it's been very rainy and raw over the past few weeks with temps between 43°&59 ° .....only a day here & there of Sunny weather in the 70's . I've been using a small ceramic heater on low to keep the Greenhouse at around 75°....but its a bit dry heat...... I've been monitoring water... Bought a pump Mister...... Is it OK to mist the Coleus when they seem to need it??? I've been reading the Greenhouse section...