This category contains questions and answers related to energy conservation.
Which term refers to any form of water that falls to the earth from the atmosphere?
Two ways you can save energy in space heating?
not heating space,by watering Answer 2 The 2 most effective (but most expensive) ways are to replace your heating equipment with a more efficient unit and to insulate & air seal the building you live in. Otherwise, close off rooms you aren't using and close the vents to them. Be sure to watch for mold, though, which can grow under those conditions. Use a programmable thermostat and turn the temp down when you are away.
Asked in Earth Sciences, Beauty, Energy Conservation
How much of the Aral Sea has dried up?
What is electric ghost power?
This is also known as phantom power or vampire power. Even though an electric device is turned off, it is still drawing a small amount of power. A television, for example, continues to draw power so that it can sense the remote control to turn it on, or to keep the time. Other examples are chargers left plugged in for telephones, video games, etc.
Why is it important to reduce reuse and recycle?
Recycling helps the Earth by not producing more waste onto our planet. We are throwing away far too much rubbish. Our landfills are filling up. Many towns and cities have trouble finding new holes to dump rubbish in. All sorts of paper and be recycled and turned into fresh paper and card. This uses far less energy than making new paper from trees. All glass bottles and steel and aluminum cans can be recycled as well as all other metals, again saving energy. When we save energy we don't emit as much carbon dioxide into the atmosphere, because usually we make electricity by burning fossil fuels like coal. All plastics can be recycled, again saving energy. In some places only certain kinds of plastics are accepted, but all plastics can be recycled, even styrofoam (polystyrene). We throw away food scraps and other organic matter like leaves, cotton, animal manure etc. These can all be composted to become garden fertilizer. Some will also generate methane gas which is good if we collect it and use it for heating, cooking or generating electricity. But methane gas is bad if we just let it seep out of landfills and into the atmosphere where it becomes a dangerous greenhouse gas, twenty-one times more deadly than carbon dioxide. And greenhouse gases are causing global warming. So save the planet! It is important to recycle because we need to save this world before it becomes a giant garbage dump! I think everyone should recycle to try and help save most of the worlds resources and so that there is enough things for the future or next generations,and so that animals don't die and so that we don't destroy their natural habitat. To reduce the amount of waste going to landfill. To reduce your carbon footprint and to help the ozone. It also puts a lot of commodity back into the system such as metal aluminum and paper. Don't forget that when you recycle you are making the world more beautiful and healthy. Even the things you like the most could be recycled like a favorite shirt maybe it was once recycled and made into something you like. Quite right, our planet looks disgusting at this moment, and if we don't start to recycle soon, then our planet will turn into a toxic waste dump! All our future generations will be held back and our race will not survive, so I think we should all recycle and turn our world into that green, blue and white lovely planet we all love. Recycling is important because if you recycle you can give another life to your rubbish. Many trees can be saved and we will have a better environment. we need to recycle so we can help the environment and stop pollution Because the land fill will slowly get smaller. (hopefully!) People recycle to help the earth to become a cleaner and greener place! Yes. We are polluting the earth by not recycling and filling the landfills with trash that doesn't need to be there. Very important question. A Christian has a duty to recycle. Because if you believe in global warming for one thing you are saving this earth and millions of lives! Because its helps save the earth and make it a better place to live. It also can keep pollution down and save animal and possibly peoples lives. Because the old materials are reused again instead of having to use up all the new material. Well one of the main reasons for recycling is,because we only have a certain amount of products on earth so if we just through them out it will be wasted and eventually we will be out of glass, paper, glass. but if we recycle it even though there may be a possibility that we run out even from recycling we have been able to make new stuff like bags sun glasses certain clothes and heck if no one tells you what they are made of you wouldn't tell anyway. Because when you don't recycle then there will be Co2 and Co2 makes global warming. Global warming can be very dangerous for us because because that means the Earth gets hotter and hotter and one day the Earth will be to hot for us to live on. People keep on doing this so when you are one of these people please stop that! We must recycle in order to reduce landfill waste. Many beautiful parks and lands are being taken up by trash yards because we produce SO much. We are so many people on Earth so we produce SO much. We all have So many cars that produce harmful gases that warm up the Earth. That causes ice caps to melt and temps to rise. That causes floods and wave damages. People who litter and do not save the Earth, thank you so much. Please RECYCLE! Save our home; our Earth. We were not made to deteriorate our home, we were made to live in it and cherish it for our children and so on. Keep it clean. Forever. it is important to reduce reuse and recycle to help the earth survive. If we don't do these three things the our earth would be a dumpster. If we didn't do these then we would be doomed. no earth, no living, nothing. All our non-recycled waste goes to a landfill. Sitting in a large heap does no good to the environment, when something can be re-used. Recycling will help get the most use out of something, and won't cause materials to be used only once. However, you must remember the order: Reduce-Reuse-Recycle. Recycling has some disadvantages, as you need to ship the materials to a recycling center, and distribute them. This uses a lot of fossil fuels. To save the planet! It Is Bad As We Are Running Low On Gas And Only Have 20 years of it left. The reason some people recycle is because they want to save the planet. if you were to recycle you could save the planet too, and be one more climateer! because landfills are filling up yes we need to the earth is falling apart. Recycle please! yes because your helping the earth become greener so you should recycle anything paper examples: newspaper, paper, cardboard, cans, and no staples and that will make the earth greener it is good for the environment because it is a good thing to help the earth last longer. If you recycle water bottles, cans, paper or plastic bags you are reusing these items. Then they don't need to more of these Recycling allows us to reuse materials that otherwise would take up space in land fills. It allows us to not have to make as many manmade materials. For example, instead of having a paper cup from McDonalds and just throwing it away, where it will decompose in the earth, you could recycle it and save a tree (that is, if many people recycled paper, which they do). People need to realize its importance. People also need to realize that recycling of products is often more damaging to the environment than simply creating new items. All recycling takes large amounts of energy, which is often supplied by coal-fired power plants. Much recycling gives off harmful by-products. This is not always the case, however it is much more common than people are aware of. by recycling we can save the items which it is made of. We can reduce landfill use. In theory, we can reduce pollution. Some recyclables use less energy to recycle than to create from raw materials. Trees are cut down less, so we preserve natural habitats of a variety of animals and natural tourism attractions, and in the future there would be cleaner air because the trees could help with the pollution we've caused. # Glass, plastic, and other things that are non-biodegradable (can't be broken down) will stay on Earth in landfills for hundreds of years and latter on become very dangerous to humans and other animals. Added, they are made of nonrenewable resources that will eventually run out. If they are recycled, then we won't run out as quickly as we find a better way to contain our items (such as peanuts). It helps in the long run! Our landfills would fill up and our environment would be TOTALLY BAD! Because my tin cans and soda bottles pay the salaries of the coolest art collective ever! Recycling is important because then we don't need to cut down as much of the forest as we are doing now, because right now we are cutting too many trees down. Pollution is too high, the earth is vulnerable and we need to keep our earth's oxygen and the environment clean. Recycling is important because it saves resources and it saves energy. It also reduces the amount of material that we have to consign to landfills. It is good for the environment. Many things that you throw out could be used again, or could be used to make new items. This saves using more resources to make new products. It doesn't make much sense to dispose of something that still could be used for other things or the same purpose again. Recycling can help stop Global Warming, because recycling means less trees being cut down. As you may have already known, trees exchange Carbon Dioxide to Oxygen, which really is helpful when it comes to Global Warming. Also recycling is cutting down on the amount of things we throw away and some things we throw away are harmful to our environment so this helps to cut down on that too We recycle because it is good for the environment. Recycling reuses our trash to keep it from polluting the earth , reducing wastes. much less energy used cheaper to use recycled materials less energy used = less Co2 fewer trees cut down sometimes you can get money for recycling saves natural resources saves space in landfills In a small paperback book called STUFF The Secret Lives of Everyday Things, copyright 1997 by Northwest Environment Watch in Seattle, WA, authors Ryan and Durning with research assistance by Breslow, Halvorson, and Tohan, state that "Smelting is so energy intensive that aluminum earned the nickname "congealed electricity." Making a soda can of smelted aluminum takes energy equivalent to a quarter-can of gasoline. (Making a) 33-percent recycled can took about a sixth of a can of gasoline ..." Despite the date of the book, similar numbers should apply today in 2011. If you determine the number of aluminum beverage cans emptied by consumers, you'll see that the following "good" things might occur. The amount of money needed to produce a typical soda can should be reduced, and the savings should be passed on to consumers. Or, because of recycling of aluminum, the cost of a can of soda is lower than it would otherwise be (the package is often more costly than the product itself). Less electrical energy should be consumed to make "new" aluminum products, thus allowing more energy for other uses, and/or hopefully keeping the price of electrical energy at comparatively lower values. One could envision a number of other beneficial outcomes, such as reduced environmental impact because of a comparatively lower demand for the earth's limited resources and the fact that such resources become more difficult to obtain as the earth's more-easily-obtained raw materials dwindle. One thing about aluminum production that may not be apparent is that aluminum is made mostly from bauxite. This ore consists of aluminum atoms combined (chemically bonded) with oxygen and hydrogen atoms in a low-energy state; in other words bauxite has existed on the earth's surface for a long time like this (instead of "pure" aluminum) because these atoms bound together are a lower-energy state than if the pure elements existed in the same volume. "Since highly electropositive metals tend to react at high temperatures with most materials, common pyrometallurgical processes cannot be used for smelting them. A straightforward method for producing these metals is first to purify a salt of a reactive metal and then electrolyze the salt for recovery of the metallic element." p.207, Unit Processes of Extractive Metallurgy, by Pehlke, 1973, Elsevier. What this means is that aluminum atoms are strongly attached/bonded to oxygen atoms, and to release the aluminum atoms from bonds with oxygen atoms requires a comparatively large amount of energy from some source. In this case, a large amount of electricity is needed to efficiently produce large amounts of "pure" aluminum. If you can reuse something, why not? You won't have to waste resources that you don't have to.
What is an energy broker?
An energy broker is a person who helps educate and assist consumers, both homeowners and business owners, in choosing a low cost electric supplier in deregulated states. The broker is a go-between the consumer and the the electric suppliers. When a consumer you helped switches their electric through you, the broker, you earn income. Brokers can also earn money by recruiting new energy brokers. Being an energy broker gives you the opportunity to earn residual income, help people save and/or make money, own your own business and the freedom to work from home at your choosing.
Asked in Energy Conservation
What are the three great truths about circuitry?
1. The sum of the component voltage drops in a series circuit is equal to the voltage at the source. Vs=V1+V2+...+Vn (s=source, n=total number of voltage drops in the circuit) 2. The greater the resistance imposed by a component, the greater the voltage drop across it. Larger resistor=larger voltage drops, Smaller resistor=smaller voltage drops 3. In a series circuit, the percentage of resistance contributed by a component is equal to the percentage of voltage dropped by that component.
Asked in Energy, Energy Conservation
Operation of a combined cycle power plant?
A combined cycle power plant has multiple thermodynamic cycles. This increases efficiency. For example, a gas turbine can be used to produce electricity, but only about 40% of the heat is actually converted in the process. 60% of the heat is lost, and in a single cycle plant would be considered waste heat. In a combined cycle plant, that waste heat could be used to drive a second, steam turbine to produce more electricity. In such a case, the efficiency could be increased from 40% to nearly 60%. It is possible to go further. The waste heat from the combined cycle electric plant can be used to heat buildings, for instance, increasing overall efficiency to more than 65%. This is called Cogeneration.
Asked in Home Electricity, Energy, Energy Conservation
How does a light bulb affect energy use?
Like all electrical devices, light bulbs consume energy. Traditional (incandescent) light bulbs work by using electricity to heat a "filament" inside the bulb until it is so hot that it glows brightly, whereas newer "energy saving" bulbs use a different principle entirely (they are rather like a small "strip light" or "fluorescent light" such as are normally found in shops and offices etc) To get the same amount of light, traditional bulbs use much more electrical energy than the newer type. You might think that this means that by using new-type "energy-saving" lighting you will obviously save energy (and hence reduce your utility bills), but it's not quite that simple. Most of the energy consumed by a traditional bulb goes to creating heat (you have probably noticed that they are too hot to touch). If you have, say, 4 60watt bulbs in your lounge, you are using 4 x 60 = 240 watts of electricity, of which almost all is being given off as heat and is therefore warming your lounge. If you replace these bulbs with low energy ones, that 240 watts of heating will be made up by your central heating system which will "trip on" the radiators, so you will burn extra gas to make up the lack of heating from the lights! So your gas consumption (and your gas bill) will go up as your electricity bill goes down. This effect is most pronounced in winter, when you are likely to use more lights for a much longer time (because days are short) and less pronounced in summer - but you don't use lights or heating much in summer anyway. So it's a complicated business, but the point is that if you buy energy-saving bulbs which claim to offer a saving of (say) 100 pounds a year, keep in mind that your gas bill will go up (although not necessarily by 100 pounds) - if you are using a very expensive form of heating you could find that your overall costs actually rise, although this is unlikely. You might well save some energy, but probably only a fraction of what most people expect, and of course most people see the reduced electricity bill and feel good, but don't notice the rise in gas consumption - or even if they do, they don't realise it's because of the new light bulbs!
What would happen if there was no electricity?
There are two ways of looking at the question, "What would happen if there was no electricity". First.... What if electricity didn't exist? Well, the universe literally would not exist as we know it, because electricity is streams of electrons, and without electrons, compounds (and thus most matter) wouldn't exist. If electricity (electromagnetism) did not exist the universe would not exist, since EM forces are an integral component of the (commonly accepted) standard model. Second... What if humans didn't know how to use electricity? We didn't know how to use it for most of our history, so I imagine we'd revert to a mid-1800's society, where machines were steam powered and we had to read for personal entertainment. We wouldn't be able to watch TV, go on the computer, talk on the phone. We'd have to play games outside, and use our imaginations more, like they did in historical times. Parents wouldn't be able to punish by taking away computers or cell phones because neither would run anyway. Imagine cold showers or baths; no microwave; no cold drinks in summer; even worse no air conditioning and no cars (Cars need electricity to run the fuel ignition system.) One could heat water on the stove (probably a wood stove, hot, sweaty, and smokey, why many old kitchens were walled off from the rest of the house). But, you didn't prohibit using Natural Gas for Hot water, or for the stove. One can even run an absorption refrigerator on Natural Gas or Propane, or anything that would run a compressor could run a freon based refrigerator. With a little imagination one could use a solar hot water heater too. Transport would be steam-driven, animal-driven or human-powered. You'd have a bicycle, a horse-drawn carriage or you'd just walk everywhere you went, and you'd go long distances by train. By now someone would have invented the horseless carriage, which would run on either a small boiler or maybe a diesel engine--diesels don't need electricity to run, and you can rope-start them if you have to. Remember the old cars had cranks out front. You'd get outside rain or shine and pull on the crank and hope it started... and pull again. Presumably this would also work with Diesel engines without any electricity, but the increased compression would make them a pain to crank to start. Glow plugs, of course, wouldn't work so you'd have to compensate with higher compression. I believe some Diesel engines use pneumatic starters, or perhaps you could use a pony-engine setup like the old caterpillars. Also, no radio in the car. No electric fans. Probably we would still be using carbide lights on the fenders. Everyone dreams about riding horses, right? That would likely be a big part of life Lighting would be by flames--candles or lanterns. You'd communicate via the mails, or you'd go visiting. Visiting was a very popular form of entertainment in the 1800s, and there were many social protocols--you dressed formally to do it, you made an appointment to visit, you left calling cards in a basket at the front door, and you had a special sitting room that was only used for visiting. You'd entertain yourself by playing games, but you'd play with other people. You'd also go to dances, you'd go to church (people weren't really any more religious then than they are now, but everyone went to church because in a lot of places church was the main form of entertainment). Food was generally fresh, or canned, and locally-grown. Meats were almost always smoked. Did you ever read in old Christmas stories about how the children got an orange for a gift? Oranges were special because they were hard to transport, so you might see one a year. If you wanted to see a play, you went to a theater. If you wanted to hear music, you went to a concert on the town square, or you had someone in the family who could play, or you knew how to play yourself. A lot of people had pianos or harpsichords, and for the non-rich there were guitars, banjos, fiddles, harmonicas and mandolins. Work was all manual. You made things, or you wrote on ledger paper. There wouldn't be any more thirty-second conversations. Women didn't just run over to a neighbor's house for a little while--if you wanted to do that, you'd talk to your neighbor across the hedgerow at the edge of your property. If you spent a couple of hours dressing, styling your hair and applying makeup, you'd spend half the night in conversation. And you'd LIKE it! You also wouldn't be there by yourself--usually people would gather in groups in parlors (living rooms), and discuss all sorts of things. No escalators, no elevators, and a lot more would be done by hand. There probably would be a lot less incidence of obesity, and less incidence of adult onset type 2 diabetes. Medicine, of course, would be simpler with no MRIs, PET Scans, CAT scans, Maybe simple X-Rays but, no Ultra Sounds. No knowing the sex of your child before it is born. No hand held calculators. There were mechanical calculators available, for quite some time, but they were overly large. Lastly, you wouldn't have a computer to be reading this. It would either be typed with a manual typewriter (ker-thunk), handwritten by candle-light or transcribed by monks in some monastery. There actually were some early mechanical computing devices... but for a mechanical computer device capable of doing what a modern laptop computer can do, think of something the size of New York City, and still no video screen to look at. People would go to bed to sleep at dark (about 8pm) because there isn't much to do after dark, by candlelight, in shadows. There'd be no outside lights so outdoor activities would be difficult or dangerous.
Asked in Energy Conservation
What is the use of computers in energy management?
Conventional personal computers are not of much value in conserving energy. Most computers for energy management are microprocessors used to operate HVAC equipment such as chillers, boilers, rooftops, and terminal equipment like VAV boxes. Usually a single microprocessor operates each item of equipment. Within a given building the microprocessors linked together over a simple network known as RS-485. This is a 2-wire communication bus operating as a master slave. The most popular building automation protocols are BACnet (ASHRAE) and LonWorks (Echelon) running on RS-485. The key to conserving energy with microprocessors is to use their ability to inter-communicate for sharing operating information. The single most important energy conserving program is that of an operating clock running from a master controller, which can signal equipment to operate appropriately. Buildings operate in either the occupied or unoccupied mode. Using the master controller (usually another microprocessor but sometimes a personal computer running Windows) various sections of a building can be placed into the occupied or unoccupied mode from a master calendar scheduler. Careful adjustment of the occupied start and stop times offers the single most important energy conserving opportunity for any building. The second most important consideration is to reduce unnecessary reheating of the supply air. Reheating is a common practice in larger buildings where a single air handler supplies low temperature air (55 degrees typically) to terminal units like VAV boxes. When the boxes squeeze down to their minimum position, usually around 40%, the microprocessor of that VAV box can cause discharge air reheating to prevent abnormally low space temperatures. Microprocessors, suitable connected over a dedicated network (i.e. BACnet, LonWorks....), can sample space temperatures from various rooms. These temperatures can be used in an optimization algorithm that causes the air handler discharge air temperature to be reset up or down, as determined by the warmest spaces, to minimize reheating. These are the two most important building energy considerations: Clock scheduling of occupied-unoccupied times Discharge air reheat minimization
What are the advantages and disadvantages of natural gas for our planet?
Advantages: Natural gas (largely methane) burns more cleanly than the other fossil fuels (45% less carbon dioxide emitted than coal and 30% less than oil) It is easily transported via pipelines and fairly easily using tankers (land and sea) It can be piped into homes to provide heating and cooking and to run a variety of appliances. Where homes are not piped, it can be supplied in small tanks. It can be used as a fuel for vehicles (cars, trucks and jet engines) where it is cleaner than gasoline or diesel. It is used to produce ammonia for fertilizers, and hydrogen, as well as in the production of some plastics and paints. It's relatively abundant, clean burning and seems easy to distribute. It's also lighter than air, so if there is a leak it will tend to dissipate, unlike propane, which is heavier than air and pools into explosive pockets. It can be used for heating, cooking, hot water, clothes dryer, backup generator power, and so forth. Some places will supply it to your house by way of underground pipes. Natural gas is more economical than electricity, it is faster when used in cooking and water heating and most gas appliances are cheaper than electrical ones. Gas appliances also do not create unhealthy electrical fields in your house. Disadvantages: Even though it is cleaner than coal and oil, it still contributes a large amount of carbon dioxide to greenhouse gases. By itself natural gas is mostly methane, which is 21 times more dangerous for greenhouse warming than carbon dioxide so any leakage of the gas (from animals, landfills, melting tundra, etc) contributes strongly to greenhouse emissions. If your house is not properly insulated it can be very expensive. It can leak, potentially causing an explosion. A: 1. Natural gas use requires a separate and special plumbing system inside structures. 2. Natural gas is colorless, tasteless, AND IS ODORLESS IF IT IS NATURAL, requiring the addition of an odorant [one or more of several "Mercaptans"] to allow olfactory detection [smell] of leaks. 3. When gas from an underground leak travels great distances [underground], the odorant can be "scrubbed out" of the gas, thereby rendering it again ODORLESS, and therefore a severe explosion and fire hazard. 4. Being a fossil fuel, it is carbon based, and its byproducts of combustion include carbon compounds [such as carbon dioxide and/or monoxide] which contribute to the environmentally damaging "greenhouse effect." A: One disadvantage is that burning it creates CO2 emissions (although not as much as oil or coal), and CO2 is a greenhouse gas. Natural gas itself is actually a very strong greenhouse gas also (much more than CO2 in fact). Another disadvantage is that it can leak and cause fires and/or explosions. A: As noted above, Natural Gas is a fossil fuel. I am skeptical of calculations that it produces less carbon dioxide than other fossil fuels, although it does burn cleanly and efficiently. In some places, Natural Gas is considered a waste gas, and excess methane is just burnt in the atmosphere without using any of the energy it carries. For efficiency, we should be utilizing all of our fossil fuel hydrocarbons. Some communities are now investing in recovering natural gas from garbage dumps and farming for energy production. There is more of this that we could be doing. As far as fueling automobiles with either Compressed Natural Gas (CNG) or Liquid Natural Gas (LNG), the refueling process is slow (slower than using propane), and high pressures are required. And there are dangers of carrying around CNG or LNG tanks in vehicles. A: If we are to believe scientists concerning global warming, we need to look at the two products here. Natural gas is mostly methane (as previously pointed out). Natural gas also escapes into our air naturally. Methane is many times more of a forcing agent in terms of green house effect. Converting methane into Carbon dioxide (a less substantial green house gas) would reduce our overall forcing in terms of real forcing. There are several advantages to using compressed natural gas (CNG) to power vehicles. First, it is the cleanest burning fuel available. This reduces harmful emissions, which helps air quality. Secondly, there is an abundance of natural gas right below our feet. Increasing the production of natural gas would make the US less reliant on foreign sources for its energy, which would also help its national security. Third, as a result of the abundance of natural gas, it is much cheaper than diesel or gasoline. There are many areas throughout the US where natural gas is close to or less than $2 per gallon. A: The gas orduces lots of energy and is easy to transport using pipelines. D: It produces more pollution than oil and if it leaks natural gas can cause a big explosion and/or fire Answer: Advantages of natural gas: - It is a very clean burning fuel - There is an abundance of it throughout the world - the U.S. has the 6th largest reserve of natural gas in the world - It is about half the price of gasoline - It can be used in vehicles and is very efficient - It is used to heat most homes - It is easy to recover it from shale Disadvantages of natural gas: - There are only about 1,000 fueling stations across the U.S. open to the public - There aren't very many cars that use it yet One advantage of natural gas is its abundance in the U.S. Our country has the 6th largest natural gas reserve in the world. Natural gas also has the advantage of being the cleanest burning fuel available. its renewable!! it can help keep other gases from the destroying the atmosphere(good for the enviornment) and it also made vampires decay in the caves back then so there arent any more alive...(or are there?) Also natural gas is used for fuel... and other things that have to use power Natural gas is a carbon fuel so burning it generates the greenhouse gas carbon dioxide. However this produces less carbon dioxide than the same amount of energy from burning oil or coal, so natural gas is slightly cleaner than other fossil fuels.
Asked in Energy Conservation
Why is sun attracted to dark colors?
What percent of the world's gasoline does the US use?
Asked in Animal Life, Endangered, Vulnerable, and Threatened Species, Rainforests, Energy Conservation
What kind of animals live in Tropical rain forest ecosystem?
Asked in Firearms, Chemistry, Energy Conservation
On average how much gas volume wise is produced by a given volume of smokeless powder?
Give two examples of ways to conserve energy at home?
Asked in Energy, Energy Conservation
Warning from the British Ministry of health about Energy Saving bulbs?
Asked by Trisha Bode in Energy Conservation, Household Hints
What’s the easiest way to cut energy costs?
There are dozens of ways to cut energy costs on a daily basis, but here are five of the most basic: Cook with something smaller than your oven. Whenever possible, use a microwave, air fryer, or other small appliance to cook. It’s usually quicker, and the heat is focused more on what’s being cooked, thus saving energy. Replace your HVAC filters regularly, and use your vents wisely. These filters often become clogged with dirt, dust, and debris. How often you need to change your filters will depend on how much you run your heater and air conditioner, the amount of debris circulating through the rooms, and the type of filter you use, but in all cases, you should check on them every four to six weeks. Additionally, making sure your vents are closed in rooms you do not use and open and clean in rooms you do use will distribute temperature much more economically. Turn off lights and, since many electronic devices draw power even when they’re turned off, unplug appliances. These probably go without saying, but they can make a big impact on your energy bill. Replacing your incandescent light bulbs with energy efficient alternatives reduces their electricity output by 25-80 percent. Weatherize and insulate your home to save on heating and cooling expenses.