inkbird 308

Tent is getting to 20°.. Id like it around 25.. Instead of heater is it okay to just connect my filter and cool tube to inkbird and have the extraction fan turn on and off to maintain heat?

I've one of these arriving shortly An was wondering is there any prefered way to use it. One outlet will turn off an on a heat source an the other the cooling part of the deal, in my case that's an intake fan or extractor fan. But i don't really want to turn either of these off, extractor...