Up-to-date AC systems provide greater efficiency ratings than equipment from 10–15 years in the past. https://sq.alssunnah.com/site-sections/albiot-alssunnah/49-albiot-alssunnah-3/26-episodi-i-trete-hadithi-o-allah-falja-aishes-ato-qe-ka-bere-prej-gjynaheve-dhe-ato-qe-do-beje/
