Due to high humidity it is important to use a chemical/bleach to remove the buildup of algae in the condensate drain lines.
It is important to have your condensing unit cleaned once a year. You can do this yourself with the unit running and a normal garden hose. We also provide this service and use a special chemical specifically for cleaning condensing coils. This chemical is designed to not attack the copper or aluminum. Having this done could save you in excess of $100 per year on your electric bill.
Make sure to keep a minimum distance of 12” between your plants and shrubs and the condensing unit. In addition, do not allow any tree or shrub limbs to grow over your outdoor condensing unit.
In the newer homes in many areas, the code requires that a fresh air vent/damper be installed at the return air duct. In most cases this damper is left wide open and causes an excessive electric bill and humidity in the house, by allowing the warm humid air to be drawn into the house. I recommend you close this down to 10% or less of the opening. Remember, this is designed for inactive individuals that do not go in and out of their house often during the day.
With programmable thermostats, you can set your thermostats to have 3 or 4 different settings per day and also weekday vs. weekend. It gives you flexibility to save money by altering the house temperature according to your schedule.
In extreme weather, heating or cooling, it is a good idea to put the thermostat in Fan mode instead of Auto. This will allow the warmest rooms to be circulated continuously maintaining the temperature throughout the house.
Leaving your ceiling fans running during the day in occupied areas will allow you to set your thermostat 2° higher because the moving of the air will make occupants feel cooler. However, leaving ceiling fans running in unoccupied rooms does not accomplish anything but adding to your electric bill.
The question is always asked of me, whether to shut off or close registers in non-occupied rooms. The answer is you can close registers down to where they don’t whistle, but only on 2 registers.