Evaporative cool works very well on dry, hot days, but on humid is rendered useless and costs significantly to heat your home in winter, during the colder climate months. Efficiency Matrix conducted air tightness testing with and without evaporative cooling on a 15-year-old home in Melbourne, Australia. The Air leakage difference in a home with evap cooling can be as high as 10ACH@50Pa difference and in this video we demonstrate how bad evap cooling can be to the detriment of your heating performance of your home.

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