It always depends on the room you have the tent in if it’s a basement,a main floor or atop floor or even an attic summer or spring fall or winter things to consider 

I grow in a Finnish  basement I run ductless air unit and a dehumidifier plus a Waze system that filter the air in the basement I’m happy with temperature from 68 to 78 in the tent the plants stay happy

the room stays at about 65 in the summer in order to keep them temp in the tent 

it’s what you’re working with  and you work with what you have