Tips to Save on Cooling Costs 1. Plant a few trees or shrubs outside to shade the air conditioning unit, but make sure not to block air flow and keep the unit clear of leaves. Debris should be cleared frequently. 2. Seal leaks around doors, windows and electrical outlets to prevent heat from getting... read more at http://www.asbuiltclimatecare.com/cooling/comfortseriesairconditioner.aspx