[Aspos]

An open window means kilowatts of energy wasted. All the air I spent money cooling will just leak out. It also means all the pollen will be let in.

[throwaway219450]

If you’re cooling with whole house AC, you’re probably fine if there’s a register in your bedroom and the air is free to return.

[DANmode]

Depends which way the wind is coming from.

Depends if you live where there is pollen.

Depends if you generate your power with solar.