On Fri, 13 Mar 2026 13:01:40 -0400 Stephen Partington via PLUG-discuss <[email protected]> wrote:
> it really depends on where that DC is. In AZ/NM, etc., evaporative > cooling is massively efficient. In FL, likely less so. My inlaws had a house in Reseda, California, in the San Fernando Valley (called "the valley") just outside LA. The valley was hot, like triple digits in July, August and September. It was 114 degrees the day my wife and I set out on our honeymoon in June 1989. It was 107 the day I moved out of the valley in September, 1998. And the valley was dry. Sweat evaporated instantly. You had to drink a half liter per hour just to make up for the water vapor you exhaled. My wife's parents had a 3 foot square device consisting of a water drizzle and an inblowing fan. It cooled the house beautifully, at a fraction of the cost of an air conditioner. And the humidity it added to the indoor air wasn't uncomfortable, it just made it a little easier to breath without getting a sore throat or bronchitis. In 1998 we moved to Central Florida. It usually gets up only to the high nineties, but the humidity is oppressive. You sweat constantly. Sometimes the air breaths like syrup. The high humidity almost eliminates the energy transferred by evaporation, and not only that, adding more humidity might take the wall paper right off the walls. Evaporative cooling is for low humidity locations. SteveT Steve Litt Featured book: Troubleshooting Techniques of the Successful Technologist http://www.troubleshooters.com/techniques --------------------------------------------------- PLUG-discuss mailing list: [email protected] To subscribe, unsubscribe, or to change your mail settings: https://lists.phxlinux.org/mailman/listinfo/plug-discuss
