Grow Room Temperature Cycling

[Shadeflower]

temp drops are important for good growth.

I would pick option 2. Maybe add a thermostat but that is optional.

I actually use 120watt tubular heaters. I know they are trickier to buy in the us but they are really cheap here and have a built in thermostat.

Amazon should sell them these days, they sell everything

edit: ok that is one thing amaz.com does not sell. Very strange, they are really safe too, doesn't make any sense

Nest best option is a heating cable then:

Amazon.com