In Alabama the summer gets hot, really hot. We deal with high temperatures, higher humidity and more often than not, higher electric bills due to our cooling systems working harder to maintain a level of comfort inside of our homes. Many members use heat pumps as a cooling system, so it’s best to understand how they work and the most efficient way to use them.
Most heat pumps are designed to work most efficiently at 95 degrees and below; they also are intended to hold a maximum 20-degree difference from the outside temperature to the thermostat setting in the home. Once the outside weather exceeds that 95-degree threshold, the heat pump must run almost nonstop in an attempt to maintain that 20-degree difference. For example, if you have your thermostat set to 68 degrees and it’s 95 degrees outside (equaling a 27 degree difference), your unit will continue to work with a goal of maintaining the 20-degree difference for which it was designed. The best way to save on your energy bill during these times is to turn your unit up to 78 degrees, which helps reduce the 20-degree window, and use fans to increase your comfort. Although higher temperatures usually mean higher bills, there are some things you can do to help lower your energy use in other ways.
A programmable thermostat can make it easy to increase your temperature to a higher setting when you’re not home.
- Do not close off rooms or vents. By doing so, you’re forcing cooled air back into the unit, which may cause damage to it and the duct work over time and in actuality, doesn’t reduce the amount of cooled air your unit produces. It also causes your unit to run inefficiently and increase your energy use.
- Avoid placing lamps or TV sets near your thermostat. The thermostat senses heat from these appliances, which can cause the air conditioner to run longer than necessary.
- Using a ceiling fan will allow you to increase your thermostat setting by four degrees and you will not notice any change in temperature. Fans that have the ENERGY STAR label move air 20 percent more efficiently than other models. Since they only increase your comfort and do not impact the actual temperature in the home, make sure you turn them off when you’re not using the room to reduce energy use.
- Water heating accounts for about 18 percent of the energy consumed in your home. Turn down the temperature of your water heater to the warm setting (120°F). You’ll not only save energy, you’ll avoid scalding.
- When you shower or take a bath, use the bathroom fan to remove the heat and humidity from your home. Make sure bathroom fans are vented to the outside (not just to the attic).
- Wash clothes in cold water and only full loads of clothes, clean the lint filter in the dryer after every use. Wash and run full dishwashers at night, and air-dry dishes and clothing to help add to your energy savings.
- If you have a pool, consider slowly reducing pool filtration time by 30 minute increments daily. Keep on reducing the time as long as the water appears clean. You may find you only need to run your pool filter six hours a day. Install a timer to control the length of time that the pool pump cycles on. Consult your pool manufacturer if you have any questions or concerns about the amount of time needed to properly filter your pool.