[Josh’s] apartment doesn’t have central air conditioning — the kind that connects to a forced-air heating/cooling system. It does, though, have a water circuit for air conditioning ...

The people over at Gray Wolf Survival have this amazing little air conditioning project ... which is the cooling agent typical found in other DIY air conditioners. Those generally cut holes ...

If you need an emergency cooling solution, here are some DIY air conditioner ideas using items you likely already have at home. For less than $10, you can make this DIY A/C from makeuseof.com.