10 Best Energy Efficient Air Conditioners to Keep You Cool Without Raising Your Bill

3. Frigidaire FFRA0511R1E -- Basic but Budget-Friendly

Don't let the no-frills look fool you --- this little Frigidaire is a solid pick for anyone on a budget. It's one of the more affordable units on this list, yet it still cools small rooms (up to 150 sq ft) efficiently. No digital controls or remote, but it gets the job done. Sometimes simple really is best.