Installing a Water Heater Insulation Blanket Via Flickr - greenforall.org

The cold that many of us are facing these days has us turning inwards, sipping tea, wearing more layers, and huddling under blankets to stay warm. Hopefully you’ve already taken a look at your heating system to determine how efficient it is so that you’re saving on your monthly energy bills (be they electric, natural gas, pellets, wood, or heating oil).

But many of us also like to warm up by taking a nice long, hot bath or standing for a few extra minutes under the shower. And so here’s another place you can save energy during the cold months. Water heaters are responsible for a relatively large portion of our monthly utility bills, accounting for up to 25% of your average monthly bill! That’s a good chunk of energy, and provides a lot of room for improvement.

According to the US Department of Energy, adding an insulation blanket to your water heater can help to reduce your water-heating related energy costs by as much as 9%. An insulation blanket that you wrap around your water heater can save you around $15 every year in energy bills. These jackets (which are often pre-cut to fit water heaters), cost between $10 and $20 and are very easy to install, so they’re one of the simplest and cheapest things you can do to reduce your energy use. US DOE’s Energy Savers site has a guide to installing an insulation blanket to make it dead simple.

Another really, really simple (and free!) way to reduce your monthly water heating bill is to lower the temperature on your hot water tank from 140ºF to 120ºF or lower. Not only does this reduce the amount of energy you use to keep your water warm without sacrificing comfort, it cuts the mineral build-up in your hot water tank, lengthening its life and cutting your long-term costs, too.

Water Heater Insulation Blanket

Gas bills often spike during winter months (image via Flickr - Editor B)

Christmas Day is nearly upon us, and so we offer you this gift—easy, effective ideas for saving energy in your home, for year-round lower utility bills. Now that’s a gift that keeps on giving!

• Turn down hot water heater: This one is ultra-easy. Sure, you want the heat of a nice shower to warm you in the morning, but if you turn down the thermostat on your hot water tank to 120F rather than 140F, your appliance will have to work less to keep you water warm. This could drain 6% to 10% from your water heating bill monthly.
• Get a programmable thermostat: They can cost as little as $30 but could save you upwards of $180 in heating costs every year. They take the hassle out of turning down the heat when you leave the house or at night, ensuring that you’re not heating empty rooms. Just set it and forget it!
• Prepare A/C unit for winter: If you haven’t already, get your a/c ready to save you money throughout the winter First, if yours is a window a/c unit, be sure to remove it from the window and store it away so that you’re not losing heat. Regardless, you should also drain any pipes and hoses and store them away, while ensuring that the outdoor shutoff valve is closed.
• Clean furnace and replace filter: Like any other appliance, your furnace requires regular maintenance to stay in efficient-shape. But one of the simplest, least-expensive up-keep tasks is to regularly clean and/or replace your furnace’s filter so that air can move freely and efficiently through the system. If you have a disposable filter, check it monthly for dust and debris, replacing it as necessary. But you can save even more with a replaceable filter. Though you’ll have to put out some money to buy the investment, they trap between 48% and 78% more debris and can be used over and over again for years. These need regular (monthly) cleaning (vacuum it of dust and debris). Mark your calendar and don’t forget.
• Stop up drafts: You could be letting dollars (from heat loss) walk out your front door if you’ve got air leaks around windows, electrical outlets, and doors. Do something to stop the drafts around your doors by making your own draft snake (use fabric scraps or leftover yarn; lots of free and fun patterns are available online). Seal up leaks around windows and other outlets by getting a tube or two of caulking and some weatherstripping. Similarly, seal-up ducts for heating and cooling to cut $140 from utility bills. According to the US Department of Energy, these measures could reduce heat loss in your home between 5% and 30%.
• Wear more: Finally put that ugly Christmas sweater to use by layering to stay warm without cranking up your home’s thermostat.

Bundle up with multiple layers so that you can turn your thermostat down (image via Flickr - Vato Bob)

Making your own draft stopper is an inexpensive way to save energy and make your home more comfortable (image via Flickr - BitchBuzz)

Changing your furnace's filter can help reduce heating bills (via Flickr - Collin Anderson)

Heating our residential water supply requires a big chunk of our annual budgets. On average, Americans allocate between 15 and 25 percent of their energy bills to water heating, making it third to space heating/cooling and kitchen appliances. Finding ways to cut down on the energy you consume to heat your water will put money back into your pocket and reduce your climate impact, too.

• Use cold water for washing laundry to save up to $63 every year in energy costs.
• Install a solar pool water heater for between $2,000 and $4,000. You could receive a return on this investment (compared to a traditional fossil fuel heater) in as little as 1.5 years.
• Install a high-quality pool cover to reduce your pool heating costs by up to 90 percent, which will also cut your water loss to evaporation by 70 percent.
• Insulate your water heater to cut energy costs by $15 annually.
• Hot water used for showering adds to your monthly water heating bill, so using less water to shower will reduce that utility expense. A low-flow showerhead can cost between $8 and $50 and will save you around $200/year depending on your water and energy costs.
• Add an insulation wrap to your hot water tank for about $20. This investment will pay for itself in a couple of months, and will then continue to save you money for years to come.
• Install a tankless (also called on-demand) water heating to save between $160 and $200 annually.
• Taking a shorter shower will reduce the amount of hot water you consumer on a monthly basis. And since it takes energy to heat and store your hot water, a shower timer can reduce your family’s utility costs by $25 for every minute less each person takes to get clean.
• Water costs energy, and hand washing requires more water—using your dishwasher could cut your water use by 37 percent.
• When buying a new dishwasher, choose one that comes with a booster heater for warming the incoming water from 120F to 140F. This allows you to reduce your water heater’s temperature to 120F without compromising on your dishwasher’s cleaning ability, and could save 10 percent in dishwashing energy costs.
• Don’t use the “rinse hold” feature on your dishwasher as this uses 3 to 7 more gallons of hot water each cycle it runs.

Close to 90 percent of the energy used for washing laundry is for heating the water, so wash your laundry in cold water to reduce energy consumption for that load by 50 percent.

The UK’s Energy Saving Day organization has joined forces with BBC’s former head of comedy (Jon Plowman) to produce a relatively complete review of the most popular energy monitors (including ones like Home Joule, Kill-a-Watt and Wattson) on the market today, and it’s available via YouTube video for anyone to view (in two parts, first part above, second below).

In this somewhat light-hearted look at energy monitors, Plowman walks through a good number of devices available on the consumer market one by one. He talks through how each of them works—where they connect, what they measure, how the display functions, and more—and identifies for each one some of the pros and cons of choosing it. In particular, he talks about cost and granularity of detail, two important factors in any energy monitor purchase.

Regardless of which device you select for your home, you can be guaranteed that you’ll save power every month if you pay attention to the readings. That’s the understanding Energy Saving Day is operating under. They believe that households in the know about their energy use are households with the power to cut their energy consumption.

It’s no surprise, either. If you discover, all of the sudden, that your refrigerator is adding a big load to your energy consumption and do the math to find out how much you’d save with a more efficient model, you’re more likely to replace it with something more power-saving. Their website points out that an energy monitor can help homeowners reduce energy consumption by as much as 10 to 20 percent annually.