Energy to heat water accounts for about 20% of the average household's energy budget. Most water is heated with electricity or gas, which is a shame when pollution-free solar water heaters are economical and practical in most parts of the U.S. Even without the energy tax credits of the 1970's, it is worth checking out solar hot water heaters.
If you have an electric or gas model, here are some ways to make your system more efficient:
- Be sure the thermostat is set no higher than 130 or 135 degrees F.
- Install a timer to allow heating only during the hours when you wash and bathe. There is no need to keep all the water in the tank at 130 degrees all night long. Timers are available for both electric and gas models.
- Insulate the tank with a fiberglass blanket and wrap the hot water piping.
- The less hot water you use, the less you have to heat, saving CO2 emissions and money. Install "low flow aerators" in your sink faucets, and a "low flow showerhead" for your shower. These gadgets only cost a few dollars each and offer big paybacks on your utility bills - check your hardware store or plumbing shop.
- When your old water heater dies, replace it with the most efficient model. It will cost more initially, but will save you a lot of money and energy in the long run.
- Wash clothes using cold or lukewarm water, and use a clothesline to dry your clothes - clothes dryers use lots of electricity or gas. ***
