[mountainlion]

Why should I use electric heat to warm my house up in the summer? My air conditioner is an open window.

[Texas Fossil]

We all don’t live in the mountains. I did for many years and appreciate the effect. Unfortunately, God Blessed Texas with too few mountains. smile.

[HangnJudge]

...Why should I use electric heat to warm my house up in the summer? My air conditioner is an open window.

Live in the deep south sometime
8 Years in New Orleans taught me to appreciate AC

[HotHunt]

".... My air conditioner is an open window....."

You obviously don't live in this living greenhouse we call Florida in the summer.

We open our windows some in the fall, winter and spring at night but NEVER in the summer when the humidity is in the mid-90's at night and the temps are 80 degrees+. My bed would be soaked with sweat and I wouldn't be able to sleep.

We leave our thermostat at 78 during the day when we're working outside on the farm and turn it down to 72 at night so it's comfortable to sleep.