Question about indoor tent temp changes.

Would it be better for this temp to be cooler (65f) and stable, or for it to stay above 67 like this and go up and down between 67-71?

My oil heater takes a few minutes to heat up, then hits the temp and shuts off, and then repeats. Is this fluctuation okay or could it be bad for my plants?

The temp, humidity and VPD follow pretty much the same pattern, up and down the whole time.

I would take the fluctuation. To get as much heat as possible. It needs to be nice and warm and moist in there

What might happen though, is a plant nearest the heater could maybe get too warm being beside it.

Too cold.

1212ham said:

Too cold.

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What is the ideal temp in your opinion? It’s very hard to get my temp up without throwing everything else off.

dopenixon said:

What is the ideal temp in your opinion? It’s very hard to get my temp up without throwing everything else off.

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With LED, most like low to mid 80's and some taper off a few degrees as they move through flower.

It's all about leaf temps. Unlike LED, HID and especially HPS have lots of infrared that raises leaf temp above air temp so several deegrees lower is good.

dopenixon said:

What is the ideal temp in your opinion? It’s very hard to get my temp up without throwing everything else off.

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75 to 78 is happy time
69 might be fine with no lights