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phleas · 05-25-2008, 08:05 PM

I have some experience with cool-n-save in Houston, TX.

I installed a cool-n-save mister on my 3 ton upper AC unit last May. I used it all summer and reduced my KWH usage by 31%:

2006 Apr - Oct KWH: 10510
2007 Apr - Oct KWH: 7187.

It saved me over $400 in electricity. The mister used about 1 gallon water per hour and I saw no increase in my water consumption in 2007 vs 2006.

HOWEVER: Even with the phosphate filter, there was much scale buildup on the condenser. I don't believe it would have come off easily. I did not have to clean my coil because it was replaced this winter. My Amana coil that was Mfg in 1999 was defective and was replaced under warranty. I lucked out.

I am NOT using the mister this cooling season. I have plans for a rainwater collection system and when built, I will be comfortable using rainwater on the coils. Timing for build will be next year...I am very busy with other projects this year.

05-25-2008, 08:05 PM	#49 (permalink)
phleas EcoModding Lurker Join Date: Jan 2008 Location: Houston Posts: 1 2003 Cavalier - '03 Chevrolet Cavalier 4 Door Sedan 90 day: 61.69 mpg (US) Thanks: 0 Thanked 0 Times in 0 Posts	I have some experience with cool-n-save in Houston, TX. I installed a cool-n-save mister on my 3 ton upper AC unit last May. I used it all summer and reduced my KWH usage by 31%: 2006 Apr - Oct KWH: 10510 2007 Apr - Oct KWH: 7187. It saved me over $400 in electricity. The mister used about 1 gallon water per hour and I saw no increase in my water consumption in 2007 vs 2006. HOWEVER: Even with the phosphate filter, there was much scale buildup on the condenser. I don't believe it would have come off easily. I did not have to clean my coil because it was replaced this winter. My Amana coil that was Mfg in 1999 was defective and was replaced under warranty. I lucked out. I am NOT using the mister this cooling season. I have plans for a rainwater collection system and when built, I will be comfortable using rainwater on the coils. Timing for build will be next year...I am very busy with other projects this year.