Re: Continued Growth
No I am not an astronomer. I just figured that when the sun comes up it is closer to the earth. The moon is. When the sun is high in the sky it is farther from the earth. The closer the sun is to the earth the faster the greenhouse temp. will rise. Once it gets so high the temp in the greenhouse starts to fall even though it is getting warmer outside. That is just my theory. I was surprised to see that as soon as the high temp is hit, it stays there for not long at all before It starts to cool off. It is cooling off in the greenhouse even though it is getting warmer outside the greenhouse. This must mean that whatever is heating the greenhouse, the sun, is not as intense, and the temp starts to drop. 1 more time. 12:30 Greenhouse temp 95f, outside temp 35f. 2:30 greenhouse temp 85f outside temp 40f. Why is the greenhouse warmer at 12:30 when the outside temp is only 35 then at 2:30 when the outside temp is 40? This is only with it totally closed. If you open a roof vent, the heat can escape. That is the best I can do. I hope this is clearer. It is pretty simple to me but then again, I thought it up. I am sure there is proof, I just know what my thermometer says and came up with a theory. By the way, I do have a thermostat controlled exhaust fan and a thermostat controlled motorized exhaust shutter. It does not reach those temps. now. That would not be good. That was last year, and this spring/summer. It has hit almost 95 this December with plants in it. That was 'cause I slept in a little and the thermostat was not set exactly right. I leave it set on 90 for the winter. That is not too hot and it could be 35f outside. I don't want the fans coming on at 80 if it is cold out. I want the heat to build a little more. Cheaper on the gas bill, and electric for that matter.
Tom
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