New member in SF Florida
 

Hello, just found the group and signed up. Always looking for green ways to save energy.
Just finished a water cooling system for our 12' x 38' long Lanai (screaned porch)
Before turning it on, the underside of the aluminum (uninsulated) roof pans was 125 deg. After turning the system on for 1 minute, the temp dropped to 86 degrees. That was with an outside temp of 92 degrees.
If I am going to be using the lanai, on hot days, I turn it on when the ceiling temp reaches about 90 deg. I have a timer set to run it for 1 minute, every 15 minutes.
It's well water, that doesn't stink!

Welcome to the site Pirate.

We would love to hear more about this cooling system. Pictures are always great to see too.

I ran a 3/4" pvc pipe across the top edge of the roof, with micro sprinkler heads every 4'. A hose goes from there to a irrigation valve, wired to a 24 volt power supply. The power supply is plugged into a digital timer, set to come on for 1 minute, every 15 minutes.
Works good. Just have to take the pipe down and paint it, for sun protection.

Sounds great, simple, easy to do and seems pretty cheap! How well has it been working for you?

It works great. I just got home and had it off. The ceiling temp was 125 degrees. The outside temp is 94 degrees.
I turned it on and after 1 minute, the ceiling temp was 90 degrees.
After 10 minutes it was 95 degrees.
After 15 minutes it was 106 degrees.
Then it repeats the 1 minute on/15 minutes off cycle.
I may try off for 12 minutes and see the results.
As it is, we noticed a difference this wk. end while we were in and out of the lanai.
Here is a link to the timer I bought. Ct 1 Digital Adjustable Cycle Timer MIN Max Setting 24 Hours 10 Seconds | eBay

Hello everybody welcome to this forums. have a nice meeting to all.

hi welcome