That's balmy spring weather

, it's been about -22F here dips to -40 with wind chill.
My grow room shares two outside walls so it's getting way too cold at night in the tent even with lights on in the other and vent running through.
What do you do when you live in these climates tho? It's not normally this cold but I think we are all having some cold snaps. Stay warm everyone and your babies too!
