Q: Does misting the air outside around the condenser of an air conditioner while it is running make it any more efficient?
A: We generally don't recommend doing this because of the likelihood that the coils might freeze is high, even in times of extreme summer heat. Of course, once a year - or after a major dust storm - you should clean your coils to keep them working efficiently. When dust coats the outdoor parts of the condenser, the refrigerant in your system will not remove as much heat.
First, be sure to turn off the power source; then thoroughly hose down the condenser. But remember constant water or misting will do more damage than good.
For more do-it-yourself tips, go to rosieonthehouse.com. An Arizona home building and remodeling industry expert for 25 years, Rosie Romero is the host of the syndicated Saturday morning Rosie on the House radio program, heard locally from 8-11 a.m. on KNST-AM (790) and-FM (97.1) in Tucson and KGVY-AM (1080) and -FM (100.7) in Green Valley. Call 1-888-767-4348.
