Temperature needs during flowering

**wilson** · 06-11-19, 12:01 PM

Hi all, my grow is in the flowering stage. The tent is in the garage which gets cold here in England over winter. I have thermostatic tube greenhouse heater which currently, during the 12 hours that the HPS is on seems plenty warm. For the 12 hour off cycle, I cut the air circulation fan ( to preserve heat) but I was wondering if the tube heater is adequate. I have read that it is ok to be quite a bit cooler when the HPS is off but should i consider boosting the heating. Advice please.

**Trex** · 06-11-19, 01:21 PM

Originally Posted by wilson

Hi all, my grow is in the flowering stage. The tent is in the garage which gets cold here in England over winter. I have thermostatic tube greenhouse heater which currently, during the 12 hours that the HPS is on seems plenty warm. For the 12 hour off cycle, I cut the air circulation fan ( to preserve heat) but I was wondering if the tube heater is adequate. I have read that it is ok to be quite a bit cooler when the HPS is off but should i consider boosting the heating. Advice please.

Well . You dont want to go under 18 during nights .cools down the root zone too much and stunts them . The ideal is like 20ish lights off 26-28 lights on .

Outdoors in a garde 18 is ok as the root zone keeps warmer then a pot .

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**Dr Green** · 06-11-19, 06:16 PM

Is your garage connected to the house? If so, run your intake from inside your house, temp will be warmer than drawing from the garage. Also prop the tent up on something, like wood or foam, should insulate the bottom as concrete is cold.

I also chuck a blanket over the top as heat rises, so this insulates the inside.

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