The design uses no ice, which is the cooling agent typical found in other DIY air conditioners. Those generally cut holes in the top of a cooler, put a fan on top to blow the air down across the ice.

Heat pumps can provide both heating and cooling. In cooling mode, they work exactly like air conditioners. And come colder weather, they’re the most energy-efficient system for home heating.

and air conditioning (HVAC) in buildings. Thermoelectric modules are widely used for the electronic cooling of devices such as personal computer processors, portable food, and beverage storage ...

Tired of suffering through the heat, and with his always-on PC not helping matters any, he decided that he must do something to supplement his home’s air conditioner. The result of his labor is ...

So our first and best advice is to buy a window unit, which can be both cheaper and more effective at cooling a room. In our portable air conditioner tests, we measure how long it takes a unit to ...