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2. Don't wait until the next heat wave to buy an AC — this one ...

   www.aol.com/lifestyle/midea-air-conditioner-sale...

   This Midea window air conditioner is the perfect size for a bedroom, kitchen or even a smaller living room. Normally $175, it's now marked down on Walmart to just $144, making it quite the steal ...

3. This portable AC unit can make a room 20° colder in minutes

   www.aol.com/lifestyle/memorial-day-sale-portable...

   This portable AC cools a room in minutes — and it's on sale for Memorial Day ... This 8,000 BTU unit cools up to 175 square feet and includes a window installation kit along with a remote ...

4. Packaged terminal air conditioner - Wikipedia

   en.wikipedia.org/wiki/Packaged_terminal_air...

   A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in 1935, and was designed to fit under a window like many modern PTACs. [2]

5. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   In 1931, H.H. Schultz and J.Q. Sherman developed what would become the most common type of individual room air conditioner: one designed to sit on a window ledge. The units went on sale in 1932 at US$10,000 to $50,000 (the equivalent of $200,000 to $1,100,000 in 2023.) [ 20 ] A year later, the first air conditioning systems for cars were ...

6. This portable AC makes a room 20° colder in minutes — and it ...

   www.aol.com/lifestyle/portable-ac-makes-room-20...

   Big enough to cool down 175 square feet, this 8,000 BTU unit comes with a hose and brackets to attach to a window. And just in case you need to move it, it has wheels so you can roll it into any ...

7. Seasonal energy efficiency ratio - Wikipedia

   en.wikipedia.org/wiki/Seasonal_energy_efficiency...

   Air-conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). 1 ton of cooling equals the amount of power that needs to be applied continuously over a 24-hour period to melt 1 ton of ice. The annual cost of electric energy consumed by an air conditioner may be calculated as follows: