I started a small indoor grow with the usual suspects. 1000w led that's prob. 600 at best with the vent and filter and on and on but my furnace is next to my tent and during summer we obviously use air conditioning and because of reasons I have fixed to many times but will not stay fixed it blows cold air from the furnace into my basement bedroom /garage. My problem is when I run the air I have to put small heater near the tent so no worries but then the humidity drops so I'm constantly playing tag so without buying hi hi end sensors that do everything but grow for me is their basic way to stop the insanity lol