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TIPS TO SAVE ENERGY
LIGHTING
- Use one large
light bulb instead of several small ones in areas where bright light is
needed. In general, the efficiency of incandescent light bulbs, as
well as most light sources, increases as wattage increases. Thus, one
100-watt incandescent bulb provides approximately the same amount of light
as two 60-watt bulbs or four 40-watt bulbs, but consumes less electricity.
- Use compact
fluorescent lights instead of incandescent bulbs whenever you can.
Compact fluorescents are 3-4 times more efficient than incandescent and last
10 times as long.
- Long-life
incandescent light bulbs (which last from 1,500 to 3,500 hours) are less
efficient than regular life incandescent because the filament is operated at
a lower temperature to extend its life. Energy-conscious consumers
should use long-life bulbs only where replacement is difficult, or should
consider replacing or converting incandescent lights to fluorescent lights
which have a life of over 10,000 hours.
- Replace light
switches with motion or occupancy sensors. Good locations include the
garage and exterior or security lighting areas.
- Consider
installing solid state dimmer switches and dimming the lights when less
light is needed. Dimming reduces energy consumption. But don't
use them with most compact fluorescents, which are not compatible.
- Select your lamp
shades with energy efficiency in mind because they can make a big
difference. A lamp with a light-colored shade, especially one that's
lined in white or highly transparent, will give the best light. Tall,
narrow shades or short, dark-colored shades let through less light, which
may force you to turn on another light for sufficient illumination.
- When you
decorate, think light colors. Dark colors absorb light, encouraging
you to use more (or higher wattage) lights to light the room.
- If you go away
on vacation and leave your lights on for security reasons, use timers and
set them to turn the lights off during the day. They'll give your
house a more lived-in appearance, and you'll save energy.
- Get into the
habit of turning off lights when you leave a room.
- When you use
night lights, select energy-conserving 4-watt bulbs. Or better yet,
purchase the new green or blue-green light night lights with back light
technology. These night lights consume a mere 0.03 watts and cost only
a few pennies a year to operate.
- If you must use
incandescent bulbs, purchase energy-saving types, sold under various names
such as "Watt Miser," "Supersaver," and Econo-Watt"
bulbs. They use 5-13 percent less energy than standard bulbs.
- Use task
lighting when you need lighting in one small area and then reduce background
or ambient light levels.
- Use natural
daylighting when possible and reduce or eliminate artificial lighting.
Daylighting has been proven to have many benefits.
- Use solar
walkway and patio lights for outdoor accent lights. These are widely
available and easy to install. You can install them yourself in a few
minutes, since they don't require any wiring.
- Select
cold-start compact fluorescent, high-pressure sodium, or metal halide lights
for outdoor lighting. If you leave lights on all night, use
light-sensor controls that automatically turn the lights on at dusk and off
at dawn.
HEATING
- Clean or replace
filters regularly on furnaces and heat pumps; keep the outside units free
from leaves or debris that may clog vents.
- Program a clock
thermostat for automatic energy savings.
- Seal heating and
cooling ducts in unconditioned spaces.
- Close your
blinds and drapes at night in the winter to keep the cold out.
- When having an
old furnace or boiler replaced, insist on having a heat loss analysis of
your house performed to size the heating system properly. Don't have
the same size as the old unit installed; units used to be considerably
oversized. The size of a new heating system should not exceed the peak
heating demand by more than 25 percent.
- When purchasing
a new gas or oil heating system, specify sealed combustion. Sealed
combustion units bring in outside air to feed the combustion process, and
exhaust flue gases directly to the outside without the need for a draft hood
or damper. They generally burn more efficiently, and they do not pose
the risk of backdrafting -- the flow of dangerous combustion gases into the
house.
- Bleed the air
from hot water radiators once or twice each heating system. Trapped air
keeps systems from performing properly.
- If your oil
heating system is pre-1975 but is in good shape, consider a flame retention
head burner retrofit. A flame retention head burner burns fuel in a
cleaner and more controlled manner, increasing efficiency and reducing
pollution. It often pays for itself in one to two years through lower
heating costs.
- In the winter
remove and store window air conditioners, or cover them to reduce cold air
from entering the house through the air conditioner.
- If you heat your
house with a heat pump and have a conventional thermostat, do not set back
the temperature setting when the house is unoccupied during the day or when
the occupants are asleep at night. Setting back a conventional
thermostat can cause the heat pump to operate inefficiently, canceling any
savings achieved by lowering the temperature setting. Do set
back the thermostat if you have a setback heat pump thermostat. This
problem does not arise when the heat pump operates in the cooling mode.
Turning up the setting of both conventional and setback thermostats in the
summer will save you energy and money.
- If you have a
hot water or steam heating system, put a reflector behind your radiator to
reflect heat into the room that would normally be lost through the wall.
- If you have
reversible ceiling fans, set them in the winter to circulate the heated air
collecting at the ceiling down towards the floor.
- If you plan to
buy a new furnace, select an energy-efficient unit. Your contractor
has energy fact sheets for each model; ask for them and compare energy
usage.
- Keep your
heating system well tuned with periodic maintenance by a professional
service person. Oil-fired systems should be tuned up and cleaned every
year, gas-fired every two years, and heat pumps every two to three years.
Ask the service person how the energy efficiency of the system could be
increased.
- If you plan a
new gas heating system, ask your gas utility or public services commission
about the savings potential of electronic ignition. Ask also about
possibilities for retrofitting the system you may already own.
- Consider buying
a properly sized gas furnace that incorporates an automatic stack damper (if
permitted by your local jurisdiction code) or an induced draft fan, or
choosing an oil furnace with a flame retention burner. These devices
reduce the loss of heat when the furnace is off. (Contact your gas
utility or oil supplier for guidance.)
- Keep your
fireplace damper closed unless you have a fire going. An open damper
in a 48-inch square fireplace can allow a heat loss of up to 8 percent
through the chimney.
- When your
heating system is on, keep windows near your thermostat tightly closed.
Unnecessary drafts will keep your furnace working after the rest of the room
has reached a comfortable temperature.
- Have your oil
furnace serviced at least once a year, preferably each summer to take
advantage of off-season rates. This simple precaution could save you
up to 10 percent in fuel consumption.
- If you have oil
heat, have your service person check to see if the firing rate is correct.
One survey found that many of the furnaces checked were over-fired.
- Keep warm air
registers clean and free of obstructions, such as furniture, carpets, and
drapes.
- When purchasing
an air source heat pump, select a unit with a Heating Seasonal Performance
Factor above 8.0.
- Ask a heating
professional if the efficiency of your heating system can be improved by
reducing the system size; reducing draft (oil only); or installing a
modulating aquastat (hot-water boilers only), a new oil burner, a pilotless
ignition (gas only), an automatic flue damper, a flue economizer, or
adjustable radiator vents and valves. Some of these measures are not
recommended or may not be suitable for your system. Be sure these
measures are performed only by a heating professional.
COOLING
- Don't set your
thermostat at a colder setting than normal when you turn on your air
conditioner. It will NOT cool faster. It WILL cool to a lower
temperature than you need and use more energy.
- To operate your
air conditioner unit more efficiently, turn on your ceiling fans.
These fans create air movement across the skin, lowering skin temperature
through evaporation. The homeowner can thus raise the A/C thermostat
setting up to 4 degrees F without any decrease in comfort. Each degree
you raise the thermostat above 78 degrees F you save about 7-8 percent on
your electric cooling costs.
- Use landscaping,
awnings, and overhangs to shade the outside of your house in summer. A
shaded house costs less to cool than one in direct sunlight.
- When possible,
use fans to keep cool instead of an air conditioner. Fans consume only
a small fraction of the energy of an air conditioner.
- If you plan to
leave for a few minutes or more, turn the fan off. Letting it run
wastes energy and does nothing to cool the room--in fact, the heat from the
motor actually warms the room a little.
- Clean the
outside condenser coils of your heat pump or central air conditioner.
- If you live in a
warm or hot climate, consider adding a radiant barrier to your attic.
A radiant barrier is a shiny surfaced material, such as an aluminum-coated
plastic sheeting, installed in the attic such that the shiny surface faces
an air space (the attic space or air space between the barrier and the roof
sheathing). Radiant barriers reduce summer heat gain by reflecting
much of the heat radiated from the roof back to the roof.
- When it's time
to shop for a new air conditioner, select a unit with a high Seasonal Energy
Efficiency Ratio (central air units) or energy efficiency Ratio (window
units). For humid climates, select a unit that also does a good job of
dehumidifying. And don't buy a unit larger than you need.
- Set the fan
speed of your central air conditioner on high except in very humid weather.
When it's humid, set the speed on low; you will get less cooling but more
moisture will be removed from the air which will make it feel cooler.
- Do not position
heat-producing appliances, such as televisions or lamps, near the thermostat
that controls your air conditioner. The heat they produce
"fools" the thermostat and causes the air conditioner to run
longer than necessary.
- Take advantage
of natural ventilation during the times of the year when this is feasible to
reduce air conditioning usage. By opening and closing windows, different
parts of a building can be ventilated.
- If your ceiling
fans are reversible, be sure to adjust the setting at the onset of the
cooling season so that the blades turn to create a downdraft.
- When purchasing
ceiling fans, remember that a 36- or 42-inch fan works best for rooms 12
feet by 12 feet or smaller. A 48- or 52-inch fan works best for rooms
up to 12 feet by 18 feet. Two medium-sized fans work best in a room
longer than 18 feet.
- Consider using a
whole-house fan as part of your cooling strategy. A whole-house fan is
installed horizontally in the ceiling below the attic. Whole-house
fans consume considerably less energy than air conditioners.
- Under
appropriate weather conditions in the cooling season, use window fans
mounted in windows to exhaust hot air that accumulates indoors during the
day and, reversed at night, to pull in cooler outdoor air.
- Clean or replace
filters regularly on air conditioners; keep outside units free from leaves
or debris that may clog vents.
- Close doors and
vents of unused rooms to avoid cooling these areas.
- Turn off
unnecessary lights and use energy-efficient lights, especially when you have
the air conditioner running, because lights generate a significant amount of
heat.
- Set the
thermostat for your central air conditioning system at the highest
comfortable setting (78-80 degrees F is recommended). If you normally
set it at 72 degrees F, raising it to 78 degrees F should save between 12
and 47 percent in cooling costs, depending on the climate where you live.
- Plant trees or
shrubs or use other shading devices to shade the air-conditioning unit from
direct sunlight. You can increase efficiency by up to 10 percent.
But do not block air flow.
- Turn off your
window air conditioners when you leave a room for several hours.
- Keep your
cooling system well tuned with periodic maintenance by a professional
service person. Ask the service person how the energy efficiency of
the system could be increased.
- In the cooling
season, draw draperies, blinds, and shades indoors to keep out direct
sunlight.
- Consider turning
off the furnace pilot light in the summer, but be sure it's reignited before
you turn the furnace back on.
RECYCLING
TO CONSERVE ENERGY AND NATURAL RESOURCES
- If you change
your own motor oil, recycle the old oil. One gallon of used motor oil
when recycled yields the same amount of refined lubricating oil--2.5
quarts--as 42 gallons of crude oil.
- Don't dispose of
your dead car battery. Recycle it. The typical car battery
contains 18-20 pounds of lead-acid, a toxic substance that can cause serious
adverse health effects if not disposed of properly. Contact your local
government for recycling sites.
- Organize a
recycling program in your office or community if one isn't already in place.
- Buy recycled
products.
- Use a mug for
coffee at work and home rather than a disposable cup.
- Purchase
long-lasting, durable items rather than disposable ones.
- Use rechargeable
batteries instead of disposable batteries.
- Start a compost
pile.
- Buy the economy
size of products when feasible. You will probably save money, and it
will reduce the number of containers being thrown away.
- Buy products
that have the smallest amount of packaging materials.
- Request that
your name not be sold to mailing list companies. The average American
receives an amount of junk mail each year that is equivalent to 1.5 trees.
- Recycle your old
newspapers. If everyone in the United States recycled one-tenth of
their newspapers, we would save about 25 million trees every year.
- Recycle your old
glass bottles. The energy saved from recycling one glass bottle will
light a 100-watt bulb for four hours.
- Choose
returnable bottles instead of throwaway bottles when you have the option.
Disposable (throwaway) bottles consume three times as much energy as
reusable, returnable bottles.
- Recycle your old
tin cans when you can. Recycling and reusing the material in tin cans
reduces related energy use by 74 percent; air pollution by 85 percent; solid
waste by 95 percent; and water pollution by 76 percent.
- Recycle your old
aluminum cans when you can. When you toss out one aluminum can you
waste as much energy as if you'd filled the same can half full of gasoline
and poured it onto the ground.
- Recycle your old
plastic soda bottles, milk bottles, detergent bottles, and whatever other
plastic your community accepts for recycling. These can be used to
produce a variety of items, including other detergent bottles, plastic
lumber, fiberfill sleeping bag insulation, and clothing. Twenty-six
recycled plastic soda bottles can make one polyester suit.
- Use a mulching
mower to mow your lawn. You'll do your lawn good by putting the lawn
cuttings back into the soil and you'll eliminate the need to dispose of
these cuttings. The cuttings will serve as a mulch, retaining moisture in
the soil, and are a natural fertilizer.
TRANSPORTATION
- Use public
transportation whenever possible. One person commuting to work by mass
transit instead of driving can save 200 gallons of gasoline in a year.
- Share your ride.
Join a carpool or a vanpool. About one-third of all private automobile
mileage is for commuting to work. If occupancy increased by just one
person per car, more than 40 million gallons of gasoline would be saved each
day.
- Don't speed.
For every mile-per-hour over 55 mph, the average car or truck loses almost
two percent in gas mileage.
- When driving on
the highway, use your cruise control to maintain a steady speed.
- Keep your car or
truck well tuned. A well-tuned car uses up to 9 percent less fuel than
a poorly tuned car and releases less pollution.
- Keep the tires
of your car or truck properly inflated. Under-inflation shortens the
life of a tire and decreases gas mileage. For every pound per square
inch (psi) below the proper level, there is an average increase in fuel
consumption of 0.4 percent.
- Remove
unnecessary heavy items from your car. Every extra 100 pounds costs
you about half-a-mile-per-gallon.
- Reduce drag when
possible when you drive. Drag increases fuel consumption. If you
drive with the windows open more drag is created. Roof-mounted racks
can increase drag by more than 40 percent if you stack luggage, bicycles, or
skis on the roof and back of the car.
- Ride a bike or
walk to work, the local neighborhood store, or nearby friends. Total
vehicle emissions is reduced to zero.
- Use energy
conserving oils the next time you change your car's oil. Labeled with
"EC" lettering on the container, these oils can improve your gas
mileage by one to two percent.
- If your car is
equipped with overdrive, be sure to use the overdrive gear when your speed
dictates. Your owner's manual will give you further information.
- Don't start your
car until you're ready to move, and avoid long idles. Idling engines
waste gas. Limit car warm-ups in winter.
- Drive smoothly.
Accelerating slowly from a full stop can save you as much as two miles per
gallon.
- Drive a friend
or neighbor to work. If every commuter car carried just one more
passenger, we'd save 600,000 gallons of gasoline and keep 12 million pounds
of greenhouse gases out of the atmosphere every day.
APPLIANCES
- If you need to
purchase a gas oven or range, look for one with an automatic (electronic)
ignition system instead of pilot lights. You'll save an average of up
to a third of your gas use -- 41 percent in the oven and 53 percent on the
top burners.
- If you have a
stove with pilot light, make sure the pilot light is burning
efficiently--with a blue flame. A yellowish flame indicates an
adjustment is needed.
- Keep range-top
burners and reflectors clean. They will reflect the heat better, and
you will save energy.
- Use a kettle or
cover the pan when boiling water; water will come to a boil faster and use
less energy than if brought to a boil in an uncovered pan.
- Regularly
defrost manual-defrost refrigerators and freezers. Frost buildup
increases the amount of energy needed to operate the appliance. Never allow
frost to build up more than one-quarter of an inch.
- When cooking on
the stove top, match the size of the pan to the heating element. More
heat will get to the pan; less will be lost to the surrounding air.
- When operating a
clothes dryer, keep the lint screen clean. Remove lint after each
load. Lint impedes the flow of air in the dryer, which makes your
clothes take longer to dry and requires the machine to use more energy.
- If your clothes
dryer has an automatic dry cycle, use it. Overdrying merely wastes
energy.
- Try to use
energy-intensive appliances such as dishwashers, clothes washers and dryers,
and electric ovens in the early morning or late evening hours to help reduce
peakload energy use.
- Don't keep your
refrigerator or freezer too cold. Recommended temperatures: 38
to 40 degrees F for fresh food compartment of the refrigerator; 5 degrees F
for the freezer section. (If you have a separate freezer for long-term
storage, it should be kept at 0 degrees F, however.)
- If an existing
motor fails and the repair cost is more than 60 percent of the price of a
new energy-efficient motor, buy the new motor instead.
- When you run
your dishwasher, only wash full loads. The dishwasher will use around
17 gallons of hot water each time, whether you wash one dish or a full load
of dishes.
- When you run
your dishwasher, use the energy-saver setting, which eliminates the dry
cycle, saving you energy and money.
- Don't keep your
ancient refrigerator plugged in down in the basement or garage to cool your
six pack of beer or soda. Old models consume considerably more energy
than new models; you may be paying dearly just to keep a few drinks cold.
- Check the
condenser coils on your refrigerator at least twice a year, and keep them
clean. Refrigerators, refrigerator/freezers, and freezers with dirty
condenser coils (found on the back or bottom of the appliance) consume more
energy.
- Check the door
seals of your refrigerator, refrigerator/freezer, and freezer. If the
seal is cracked, or cold air is escaping, the seal (or perhaps the
appliance, if it is very old) should be replaced.
- Before you store
leftovers in the refrigerator or freezer, let them cool down. That
way, your appliance doesn't have to work as hard.
- To be sure your
refrigerator operates most efficiently, keep it full, but not overloaded.
(Overloading will prevent cold air from circulating properly.)
- When washing
clothes, wash in cold water whenever possible. Save warm/hot water
cycles for whites and hard-to-clean items. Always rinse in cold water.
- Don't pre-heat
your oven, unless the foods, such as breads and cakes, require it. For
most foods, pre-heating isn't necessary and represents a waste of energy and
money.
- Thaw your foods
completely before cooking. That way, your stove or oven won't have to
work as hard.
- Use the sun's
energy to dry your clothes when weather permits. The energy's free,
and your clothes smell fresher.
- Turn computers
and computer monitors off during the day when they aren't being used for
extended periods of time.
- When you buy a
computer monitor, buy only as large a monitor as you need. Power
consumption increases proportionately with the size of the monitor.
For example, a 17-inch color monitor consumes approximately 35 percent more
energy than a 14-inch color monitor.
- When purchasing
a computer monitor, if you don't need color consider a monochrome monitor.
A monochrome cathode ray tube (CRT) display consumes only 50 to 65 percent
as much energy as a color CRT display.
- If you cook with
electricity, get in the habit of turning off the burners several minutes
before the allotted cooking time is over. The heating element will
stay hot long enough to finish the cooking and you will save electricity.
The same principle applies to oven cooking.
- When cooking in
your oven, watch the clock or use a timer; don't continually open the oven
door to check food. Every time you open the door, heat escapes and
your cooking uses more energy.
- Use small
electric pans or ovens for cooking small meals rather than the kitchen range
or oven. They use less energy.
- Use pressure
cookers and microwave ovens to do your cooking if you have them. They
can save energy by reducing cooking time.
- Don't use too
much detergent when doing the laundry; follow the instructions on the box or
bottle. Oversudsing makes your machine work harder and use more
energy.
- According to
various studies, electric blankets consume an average of 150 kWh per year.
If you use one regularly and frequently forget to turn it off, plug it into
a simple timer to be sure it is turned off when not in use.
- If you have an
older model color television with instant-on features, your TV set is
drawing electricity even when it is not on. Consider installing a
switch on the cord to turn off when not in use, or unplug when not in use
for any length of time. Newer solid-state TVs do not have this problem.
- If you have a
waterbed that is electrically heated, take measures to reduce this energy
consumption. Regularly making the bed with a comforter can save more
than 30 percent, and insulating the sides of the bed can save over 10
percent.
- Before drying
clothes, sort them by fabric types. Lightweight synthetics, which dry
quickly, should not be dried with bath towels and natural fiber clothes,
which take longer to dry.
- When drying
clothes, don't add wet items to a load of partially dry clothes.
- Dry loads of
clothes consecutively in the dryer to take advantage of the heat still in
the dryer from the previous load.
- If you have a
clothes dryer, make sure you have a dryer vent hood outside that seals
tightly when the dryer blower is not operating. Although they may cost
$15 to $20 more than standard flapper vents, they are more effective and
well worth the extra money.
- Reduce ironing
time by buying clothes that are "no iron" or permanent press.
- Reduce ironing
time by taking clothes out of the dryer slightly damp and hanging them up;
this may eliminate the need for ironing. Set the dryer to buzz when
the clothes are slightly damp, if your dryer has this feature.
- Remove permanent
press clothes immediately after the clothes dryer has stopped.
Otherwise, you may find that the clothes are wrinkled and decide to iron
them. Use the cool-down cycle if your dryer has this feature.
- When purchasing
a washing machine, consider a horizontal-axis washer. These washing
machines use as little as one-third the water that a common vertical-axis
washer uses, thereby reducing energy consumption by nearly two-thirds.
- When cooking in
pans, consider copper-bottom pans, which heat up quicker than regular pans.
- Use a crockpot
to cook stews and soups that require a long time to cook.
- Use
flat-bottomed cookware (or ideally with a slightly concave bottom that
flattens out when heated) that make complete contact with the burner surface
when cooking on electric burners, solid disk elements, and radiant elements
under ceramic glass.
- Cover foods,
especially liquids, before storing them in the refrigerator; otherwise
moisture that enters the refrigerator compartment causes the refrigerator to
work harder and use more energy.
- Turn computers
and computer monitors off at night and on weekends.
BUILDING
ENVELOPE
- Caulk and
weatherstrip doors and windows that leak air.
- Look for air
leaks through openings where plumbing, electrical wiring, or cables go
through walls, floors, and ceilings. Check for drafts from electrical
outlets, around ceiling fixtures, and at openings to the attic. Seal
cracks and holes that you find.
- Seal air leaks
in your attic and walls.
- Insulate your
home properly. Adequate insulation will keep your home warmer in the
winter and cooler in the summer.
- If you're
replacing windows in your house, select windows that have low U-values and
that seal tightly. Compare U-values (U-factors) carefully, and select
high-performance units with low-E (low-emissivity) coatings and gas filling.
Also insist on windows with air tightness values of .05 or lower.
- Don't let cold
air seep into your home through the attic access door. Check the door
to make sure it is well insulated and weatherstripped, otherwise you'll be
wasting fuel to heat that cool air.
- When shopping
for windows, use the energy performance labels developed by the National
Fenestration Rating Council (NFRC) -- many windows on the market carry them
-- as your guide to selecting energy-efficient units.
- When shopping
for windows, insist on windows that carry long warranties against seal
failures. When seals fail, moisture forms between the panes and the
windows need to be professionally repaired or replaced. Moreover,
there is the loss of low-conductivity gas if this window is gas filled.
WATER
HEATING AND WATER CONSERVATION
- Repair leaky
faucets promptly.
- Install low-flow
shower heads.
- Insulate your
hot water piping and storage tank (especially if your tank is old and has
little built-in insulation). Savings up to 9 percent have been
reported by adding an insulated blanket over the tank, and three percent of
the energy used to heat water can be saved by insulating the first 25 feet
of distribution pipe.
- If your hot
water heater is set at 140 degrees F, set it back to 120 degrees F-- unless
you have an old dishwasher that does not have an internal heating element
that can raise the temperature to 140 degrees F (the temperature needed for
detergents to clean effectively).
- Install a solar
water heater (especially if you have an electric water heater and pay high
electricity prices).
- Install low-flow
aerators on kitchen and bathroom sink faucets to save water (and the energy
used to produce hot water). They will cut water usage by as much as
280 gallons a month for a typical family of four.
- Fill a basin
when you wash the dishes by hand instead of letting the water run. You
could save up to 25 gallons of water each time you wash dishes.
- Don't leave the
water running when brushing your teeth. You could save as much as 9
gallons each time you brush.
- Fill the basin
when you shave instead of keeping the water running. You'll use only
one gallon of water instead of up to 15 gallons.
- Use cold water
rather than hot to operate your food disposer. This saves the energy
needed to heat the water, is recommended for the appliances, and aids in
getting rid of grease. Grease solidifies in cold water and can be
ground up and washed away.
- If you need to
rinse dishes before putting them in the dishwasher, use cold water.
- Don't use the
"rinse hold" on your dishwasher for just a few soiled dishes.
It uses 3 to 7 gallons of hot water each time you use it.
- If you get hot
water from a tankless coil water heater, examine alternatives to save energy
in the summer. Currently your boiler must work constantly all summer
long to provide you with hot water. In cold climates, installing an
indirect water heater is generally the most cost-effective option.
This system draws heat from the boiler and stores hot water, eliminating the
need for your boiler to operate constantly.
SWIMMING
POOLS, SPAS, AND HOT TUBS
- If you heat an
outdoor swimming pool, consider lowering the thermostat on your pool's
heater. Every 1 degree F reduction can cut your energy usage by 5 to
10 percent.
- If you heat an
outdoor swimming pool, try to keep the heat from escaping by using a
swimming pool cover when not in use. Almost all of a pool's heat
loss--about 95 percent--occurs at the surface through evaporation,
convection, conduction, and radiation to the sky. A pool cover
substantially reduces this loss of heat. A cover also helps keep the
pool clean and extends the life of the chemicals in your pool. And
with a transparent plastic cover, you may actually gain heat as the sun's
rays pass through the cover and heat the water.
- If you have an
outdoor swimming pool, consider reducing the amount of time you run the
circulation pump. In a Florida study, most people who reduced pumping
time to less than 3 hours per day were still happy with the water's quality.
On average, this saved up to 60 percent of the electricity used for pumping.
- Swimming pool
owners can save energy by using smaller or higher efficiency pumps.
When a pump wears out or can't be repaired, install a high efficiency unit
that is not oversized for its needs. A Florida study found that a 0.75
horsepower or smaller pump is generally sufficient for residential pools.
Smaller pumps, which cost less, can be used if you decrease the pool
circulation system's hydraulic resistance. This can be done by one or
more of the following: substituting a large filter (rated at least 50
percent higher than the pool's design flow rate), increasing the diameter or
decreasing the length of the pipes, or replacing abrupt 90-degree elbows
with 45-degree elbows or flexible pipe. These types of changes can
slash up to 40 percent of the pump's use of electricity.
- Spas and hot
tubs can consume a tremendous amount of energy. If you have one, keep
it covered with a tight-fitting insulated cover when not in use. If
installing a spa or hot tub, insulate it well around the sides and bottom.
WOOD-BURNING
APPLIANCES
- When burning
wood in a fireplace or woodstove, select only good quality, dry wood.
- Regularly
inspect your flue for creosote buildup when operating a fireplace or
woodstove and have a chimney sweep clean the chimney when needed. You
can perform routine maintenance between professional cleanings by using a
wire chimney brush made specifically for this purpose. Never
intentionally create a small chimney fire in order to burn off creosote;
this may crack the flue liner, making the hazard from a subsequent chimney
fire greater.
- If you are
buying a wood-burning appliance, make sure it is properly sized. An
oversized stove is a potential fire hazard because it is often operated in
an air-starved or extremely slow-fire condition, which leads to excessive
creosote buildup. Too much creosote buildup inside the chimney
increases the risk of chimney fires. Oversized stoves also burn fuel
inefficiently. Conversely, an undersized stove is usually over-fired.
Although an undersized stove usually burns wood efficiently and poses less
of a risk for chimney fires, over-firing can severely damage the stove.
- If you have a
simple open masonry fireplace that you use in the winter, consider
installing a glass screen, a convective grate, a combination convective
grate with glass screen, a radiant grate, or a fireplace insert. Some
of these devices will cut down on the loss of warm air through the fireplace
chimney. These accessories may improve heat recovery from the fire.
HOME
ENERGY AUDITS
- Have a
professional energy audit performed on your home to determine whether your
home wastes energy, and to pinpoint where energy is being lost.
Contact your local utility to see if they do audits, or ask them who
performs them in your area.
- Conduct a simple
do-it-yourself energy audit of your home or office to pinpoint where energy
is being lost.
- Have a house
doctor conduct a building pressurization test, commonly called a blower-door
test, to determine the air tightness of your house and to pinpoint air
leaks.
- Have a house
doctor conduct a thermographic inspection of your house or business to
identify areas of inadequate insulation or inefficient machinery.
MISCELLANEOUS
- Take advantage
of time-of-day or time-of-use rates if your utility offers these by shifting
usage of appliances to off-peak hours when rates are lower. Though
this doesn't save energy, it will lower your energy bills. (Since it
may allow your utility company to avoid calling its older, back-up generator
into service, which is typically less efficient, the utility company may
save energy.)
- Check with your
local utility company for literature on ways to conserve energy.
- Plant a tree and
take care of it. If every American family planted just one tree, all
of these trees would remove more than a billion pounds of greenhouse gases
from the atmosphere every year.
Credit: United States Navy-Department of the
Navy's Energy Program
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