This Is the Only Window AC That Keeps My Two-Story Home Cool All Summer Long

Courtney Johnston is a senior editor leading the CNET Money team. She's an advocate for financial literacy and inclusion, with a decade of experience as a freelance journalist covering policy, financial news, student loans and investing. A New Jersey native, she graduated with an M.A. in English Literature and Professional Writing from the University of Indianapolis, where she also worked as a graduate writing instructor.

CNET's key takeaways

• The Windmill AC normally costs $349 for 6,000 BTUs, but you can often find it on sale on Windmill's website or at Amazon or Home Depot. 
• Not only is the Windmill AC the easiest unit I've ever installed, it's the only AC unit I've tried that effectively kept my older and not ...