so very very true. here in the summers its 110 degrees often, and humidity feels like constant swamp ass and bat wings, just all over you body. AC is key. i personally keep my house at 72 degrees no matter wtf the temperature or the price per kilowatt is. all i do is circulate the air from the plants around my home, and they never pass 80 degrees.
but the prices of electricity do suck, so its best to insulate. not just your grow room, but your house. windows and doors lose or gain a LOT of heat, and those are dollars your letting fly right out the window (no pun intended)
*also growing is practically legal here, so if it stinks a little, i just light incense, no worries.*