Do you really save energy if you switch to an electronic thermostat versus the traditional thermostat that is found in older homes?

Question:

Do you really save energy if you switch to an electronic thermostat versus the traditional thermostat that is found in older homes?

Answer:

Since we’re heading into heating season, this is a great time to explore this issue.

The short answer is yes, you can save energy by upgrading your thermostat.

Why a manual thermostat is not your friend
There are a couple of problems with old, manual thermostats (the kind with a dial or a sliding lever). First, they are often not as accurate as new electronic models. That can cause wide swings in room temperatures or make your heat run more often than necessary. How do you know if your thermostat is accurate? You can check it with a simple instant-read cooking thermometer. Walk through your house with the thermometer and see if the readings match the setting on your thermostat.

The second issue with the manual thermostat is exactly that — it’s manual. In other words, it’s dependent on you to remember to always turn it down at bedtime or when you leave for work.

Programmable = savings
With a new electronic, programmable thermostat, you’ll never forget to lower the heat. The thermostat does the work for you, automatically. Many models have “smart” features such as preprogrammed “night” and “vacation” energy-saving settings. Make sure you set the program to fit your schedule and to optimize savings.

According to the ENERGY STAR® program, you can save about $180 a year with an electronic, programmable thermostat if you set it properly and maintain those settings.

Choose energy-saving settings
A programmable thermostat is a great savings tool — IF you choose energy-efficient settings:

• Heating: A good energy-saving setting is 68 degrees. Every degree you lower your thermostat will save an estimated 2 percent on your heating bill. At bedtime, or when you’re away, drop it to 60 degrees to save more energy. (Exceptions: for ceiling cable heat, the maximum setback is 2 to 3 degrees. Heat pump systems vary.
• Cooling: Set your thermostat to 75 to 78 degrees; you can raise it about 4 degrees bedtime, and about 7 degrees when you’re leaving the house, to save more energy.

Keep in mind

• Different heating systems require different types of thermostats.
• If you replace an older thermostat, don’t throw it in the trash because it likely contains mercury. Ask the store where you purchase the new thermostat about recycling programs, or contact Metro Recycling Information.