Mephisto Genetics Dream Farm Report: Mephisto Edition V 2.0

derek420colorado said:
I mean possibly but it I don't think it would due much good, I have two inches of mylar backed foam and osb board keeping ALL that heat in so ventilation is my only option at this point. But I am totally ok with 82-85 in direct sunlight. Plants seem to be able to continue to photosynthesize at higher temps vs inside where 90 is about the max
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those temps totally work for me, in the window and the greenhouse, thermostatically controlled 4" fan in widow grow does the job, the greenhouse more of a problem. 24' long and open both ends to the prevailing winds. I've lasered the back wall at 112f. When the wind stops on a sunny day to damn hot, especially in the center of the greenhouse. Last season was unusually long and warm. Near the end of flowering I had 4 plants nanner. I'm thinking genetic propensity triggered by heat stress. This year gonna roll out the shade cloth on those really hot afternoons when the wind stops. Also. I'm building a small 8' long greenhouse to house 6 plants, front trained low, back grow tall. The ends of the big greenhouse stay pretty good heat wise. I think the 8 footer will be trouble free as far as heat stress. I'll test that theory.
 
Yeah we will see how they go when the temp rises about 15-20 degrees. Tomorrow will be a good test its going to get up to 75 or so. I have the giant 24 inch greenhouse exhaust fan exchanging the air every 30 seconds or so and only two 14x14" vent holes so there is always a pretty steady wind, I would say 7 or 8 mph inside my space, which is pretty good and keeps good air movement. I do have a box fan in there as well just to help with circulation
 
trailanimal said:
sounds like plenty of venting, what temp do you have the greenhouse fan kicking in?
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UGGGGH my damn fan speed controller took a shit on me about a week ago and I have to get another one, I had it kickin on at 85ish I think and it would turn on then off for an hour or two and then stay on for a couple hours straight. But I had the probe right in the sun and it was metal so my thermometers actually read about 82 or so. Right now it is 84, which is a little warm but it is the hottest part of the day right now and I think the plastic housing on the thermometer retains heat so the actual temp is prooooobably about a degree or two cooler than it shows. Either way I wont start to freak out about high temps til about 92-95 The good thing is that it doesn't really get hotter than about 85 here which is not until late july so I hope to have one crop in by then and possibly be able to add an air conditioner of some sort.
 
hahahaha, now I rearranged my fans a little bit and it is 78 in there right meow, annnnnnnnnnnnnnnnnd I just got my new FIVE HUNDRED GALLON propane tanks and never have to worry about running out or having to go to town to get god damn fuel again!
 
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