Does putting foil behind radiators heat the room better if they are covered?

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No radiators work best by allowing air flow to rise through them, a small fan will be better.
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What is heat radiation?

Heat radiation is simply the movement of heat across an open space. it is basically just diffusion

Can you heat aluminum foil in a microwave?

No. The metal will reflect the microwave energy. The problem withmetal of any sort (whether aluminum foil or silverware) is that itcan produce an arc inside the cavity of the oven. This can start afire, and it presents an enormous hazard. Can you use aluminum foilin a microwave oven? Read on. Though it is possibe to use aluminumfoil inside a microwave oven, it should only be used if themanufacturer's instructions tell the user how to do it (and theuser follows the directions). The microwave oven isn't a goodchoice to heat the foil itself. Aluminum foil (or any metal foil)will reflect the microwaves and not get hot. If the foil iscrumpled or if the foil is near the metal wall of the cavity, thatfoil can act as an antenna, and the voltages can be extremely highcausing arcing. That's bad. It could start a fire. Using amicrowave just to heat foil is a poor choice.

Which material makes a better heat insulator newspaper or aluminum foil?

A newspaper makes a much better insulator than aluminum foil. Our poor brothers and sisters who sleep outside in cold weather will sometimes cover themselves with newspaper because it helps them stay warm. Even if they had foil, they would not use it for the purpose of helping them keep warm.

Why does aluminum foil absorb heat?

Answer . Aluminum foil absorbs heat because the foil, like anything else, will absorb energy from a heat source according to thermodynamic principles. What that translates into is this: heat goes from where it is to where it isn't, or heat goes from where it's hot to where it's not. There are three ways for that to happen. One is convection, one is radiation and the third is conduction.. If foil is exposed to flame, the hot combustion gases directly heat the foil when they come in contact with it. If the foil is sitting on the top of the range when the oven is on, the oven heats the air around it and convection currents are set. These convection currents take heat away from the oven and transfer it to things which the hot air passes over. Anyone who has had a hair dryer pointed at them knows what this is like. The skin reacts to the hot air. We feel it. Convection.. In a situation where the foil is exposed to radiant energy, infrared radiation, it will react to the incoming radiation by absorbing some of it. Radiation happens because something that is hot is generating heat radiation (electromagnetic waves that are below the optical or visible spectrum). And the foil catches some of them without reflecting them. It absorbs the energy and gets warmer.. The best "life experience" example of this kind of radiation may be something familiar. If we suffer a sunburn on our face, the skin is sensitized to heat by the trauma. If we wander into the kitchen where things are cooking on the stove top and look at the stove from fairly close, we might notice a bit of pain where we were burned. That's direct heat (infrared) radiation striking the skin of the face.. Another example might be looking into a fireplace through a glass screen. If the fire is hot and we are close enough, we can feel the heat on our face because a bunch of infrared radiation makes a direct route from the fire through the glass and onto our skin.. Conduction is the transfer of heat in matter that is touching; for example, from one end of a metal bar to the other end, or from a metal bar that is touching another metal bar.

Does aluminum foil absorb heat?

People say it doesnt absorb heat because when the light points at the foil it bounces back.Also some people say it does absorb heat,but the heat cools down fast

What is better foil or saran wrap?

It depends on what you're doing with it. Foil is better for baking& cooking with and to store some things in the frige. Saranwrap is good for storing things.

What is a foil cover of a book?

A foil cover of a book is a type of book cover treatment. It is atype of cover that uses patterned or layered foil for a decorativeeffect.

Does tin foil attract heat?

Tin foil is generally made of aluminum and can attract/transfer heat. Aluminium is widely used as cooling in computer systems, which spreads the heat all over the heatsink so the air can cool the aluminum down.

Can you put tin foil in the oven?

In a convection and in a conventional oven yes. NOT in a microwave oven.. Sure as long as it is not a microwave oven.

Does an above ground pool with a blue solar cover on heat better with the filter on or off?

To evenly distribute the water and mix the cold with the warm the pump should be on.

How does a radiator heat a room?

The radiator is filled with hot water from another location. The water then heats up the metal that the radiator is made of, and the metal heats up the air in the room. The most efficient location for a radiator is underneath a window. This is because the air near the window(and the air leaking in from the window) will be cold, and will therefore drop down to the floor because cold air is heavier than warm air. On its way towards the floor the cold air will pass near the radiator where it will be warmed up, and afterwards rise towards the ceiling of the room. When the air eventually cools down it will drop to the floor, where it eventually will be heated again by the radiator. The air will continue to rotate in this manner. In older buildings the radiator was placed near the center of the apartment, as this was where fireplaces were previously situated. However this proved ineffective as the cold air seeping in from the windows would have to cross the floor to reach the radiator and be heated, resulting in a very cold floor.

How does convection and radiation heat a room?

Because the air closer to the heater heats up first. It then gets warmer and less dense and rises to the top of the room, which pushes down the cooler air that is already up at the top. Then that air warms up and rises to the top, pushing the cooler air down. This creates the Convection Current and that is how the room gets heated : )

Why does tin foil contain heat?

tin foil contains heat by its reflection and its dark color i think Google it to be safe

How do you calculate how large a radiator you need to heat a room?

Quick guide is to multiply the length x height x width of the room in feet (round it up to the nearest foot ) then for a living room/dining room/ bathroom multiply by 5 or bedroom/kitchen multiply by 3 that will give you a BTU rating. Then just look for a radiator a little bigger in it's rating than that. Alternatively use something like they have an online calculator in the radiator section.

Why use foil behind radiators?

because it saves you money and is good for the environment as it reduces the heat loss through the walls. however, only do so if radiator is attached an out side wall. hope i could help cos im only 11 sorry

How does heat move from a radiator to a room?

hot water flows through the meta pipes and warms it up therefore warming up the room .

What happens if you put foil in the microwave?

The foil will spark and possibly set the microwave on fire. NINJAWOLF99's answer: . When I put maynase packets in the microwave to heat them up, after only two seconds, a large, blu flash could be seen on the inside. I was VERY lucky the thing didn't set on fire. I took them out. 1) They did not melt 2) They still felt cold. . Answer: No.

Why does putting foil behind radiotors reduce heat transfer?

The foil reflects the heat back to the radiator thus reducing convection off of the radiator.

Explain how convection could be used to heat a room with a hot radiator on one side of the room?

Hot air rises to the ceiling and as it cools on the far side of the ceiling it sinks back down to the floor on the opposite side of the room from the radiator. It will not evenly heat the room. To get the best comfort level, you need a ceiling fan to push the hot air to the floor. The hot radiator sets up convection currents that transfer thermal energy to the rest of the room and eventually heat the entire room. How do convection currents work? The hot radiator warms the air that is closest to the radiator. The warm air expands, becomes less dense and rises to the top of the room. When the air reaches the top of the room it is pushed sideways towards the far wall by the more recently warmed air rising from the radiator below. In this way warm air moves to the other side of the room. Once on the other side of the room the air drops down both because it has cooled a little and because the air behind it continues to push on it. The air then continues to circulate back to the radiator and repeat the process.

Does tin foil placed on windows reflect heat making the room cooler?

It can keep a room warmer or cooler. A polished surface will reflect radiated heat. If the heat is from the sun outside, it will be reflected away from the window and reduce the amount of heat entering the room. If the heat is inside the room while it is cold outside, the foil will reflect it back into the room and reduce the heat loss from the room, so keeping the room warmer.

How does a radiator heat the air in a room?

The hot surface of the radiator warms the air in direct contact with it. This hot air will now have lower density than the other cold air, so it will move toward the ceiling of the room and spread out, forcing more cold air to contact the radiator. This circulation and heating continues until all the air in the room is the same temperature.

How do radiators heat a room?

Steam Radiators Electric Radiators . Traditional radiators are powered by steam or hot water. A boiler in the basement of a building heats pressurized water to an extremely high temperature, turning it into steam. As the water turns into a gas, it expands and becomes less dense, which causes it to flow up through steam tubes into radiators in the building. As the water flows through tubes inside the metal radiators, some of its heat is transferred into the metal. This gives the radiator the heat it needs to warm the room and cools the water, which then flows back to the boiler to be heated again. . Electric radiators are powered by a heating element. Heating elements are actually specialized resistors--devices that resist the flow of electricity. When electric energy flows into a resistor, it is turned into heat. The heating element in a radiator is usually suspended in oil, which conducts the heat away from the element. The heat then flows out into the metal body of the radiator and from there, into the room.

Will putting tin foil on your windows keep heat out?

Not completely, but it does help tremendously. If you don't mind the ugly look it'll give your house/apartment go ahead and give it a shot. Remember, shiny side out. If not you can go to Lowes

Why the satellites are covered with gold foils?

Firstly its not gold that is being used, Satellites(nowadays) arecovered with Metallized kapton polyimide film. Generally it is something called MLI (multi-layer insulation, akathermal blanket) these are made up of many layers of aluminized polyimide. Polyimideis a type of plastic, and yellow in color. It's coated withaluminum on the inside surface so it looks gold. Bare aluminumreflects radiation very well, which means it absorbs heat veryslowly. But it also radiates heat VERY slowly. An aluminumfoil sitting in vacuum in direct sunlight will heat up to a prettyhigh temperature. Plastic film with aluminum backing absorbs heat alittle faster, but it also radiates heat a lot faster, so itworks better as the outer-most layer of the MLI.

Does aluminum foil attract heat?

answ2. Heat is not 'attracted' 'repelled' by anything. Polished aluminum foil will, and thus is a thermal insulator. Aluminium metal itself is a good conductor of heat. It will reflect the sunlight and retain the heat.

What happens when you put foil on fire?

if i am not mistaken, foil just turns black and starts to shrivel after some time when in contact with fire. Since foil is a thin sheet of aluminum, aluminum does not catch fire.

What is radiated heat?

Heat energy can leave a body by many means. One of these is for the heat to be emitted as infrared radiation waves a form of electromagnetic radiation longer than red visible light. Unlike evaporative, convective or conductive heat losses radiated heat such as this needs no medium to convey the heat away.

Can you put foil on a pan and then put in the oven?

Of course! Cooks have been doing that for decades. The only caveat: Some acidic foods may react to aluminum, especially tomato-based dishes -- but that's more an issue of a slight change in color. Just remove the food from the foil when storing in the refrigerator.

How do radiators heat rooms?

The radiator is filled with hot water from another location. The water then heats up the metal that the radiator is made of, and the metal heats up the air in the room. The most efficient location for a radiator is underneath a window. This is because the air near the window(and the air leaking in from the window) will be cold, and will therefore drop down to the floor because cold air is heavier than warm air. On its way towards the floor the cold air will pass near the radiator where it will be warmed up, and afterwards rise towards the ceiling of the room. When the air eventually cools down it will drop to the floor, where it eventually will be heated again by the radiator. The air will continue to rotate in this manner. In older buildings the radiator was placed near the center of the apartment, as this was where fireplaces were previously situated. However this proved ineffective as the cold air seeping in from the windows would have to cross the floor to reach the radiator and be heated, resulting in a very cold floor.

What is radiate heat?

Radiate heat is ENERGY TRANSFER at a distance FROM ONE OBJECT to ANOTHER OBJECT through a form of 1. heat conduction through a medium. 2. heat waves (a variety of light waves) in the Infrared region of light 3. Energy transfer with a transfer agent. The object that heat is being radiated TO (the target), then rises in temperature, due to the transfer of energy.

Is it better to put liquor in the freezer or at room temperature?

You might as well put it in the fridge since you'll be putting ice in it anyway.

Why do dark surface3s radiate heat better?

Because they absorb them better. If a surface were to absorb a certain radiation very well and not radiate it well, an apparatus could be made that violates the Second Law of Thermodynamics (creating a temperature difference where none existed previously). Therefore, it is not possible. You might also say that the dark surface is "transparent in both directions" (in and out). This is for a specific radiation; on the other hand, it is possible to have surfaces that radiate and absorb electromagnetic waves of one frequency well, and not so well at other frequencies.

Why do you put foil on the edges of pies?

Putting foil on the edges keeps it from burning. It also keep any of the filling from dropping off the sides.

What are the advantages and disadvantages of microwave radiation for heating a room?

The advantages and disadvantages of microwaveradiation is that it is extremely harmful to humans and livingthings in general however it is very useful. .

What is a radiation heat?

Radiation heat is heat that comes directly off its source in a straight line. For example heat coming off the sun.

How does a radiator heat up a room when the door is shut?

the air inside heats up and hits the side of the radiator. metal is a conductor so the heat goes through the side of the radiator and all around the room.

Why do people put foil on their windows?

It reflects the sunlight and can reduse the total heat in your car(as an example) for as much as 20 degrees

Can you put foil in the microwave?

No way! Unless you want to make your kithen explode. Foil is a metal, and metal in mircowave means explosions. Even like a metal decore on a plate would cause sparks, leant that one from experiance :P Hope this helps!

Does blue tooth work better if you cover it in tin foil?

It doesn't really make a difference. The only way to get a better signal is if you are closer to the person you are connecting with...

Is it better to put cold or heat on vaginal area for swelling?

FIRST, make sure you are certain about the cause of the swelling. Use a mirror and look. Make sure to push aside pubic hair and separate the labia so you can see well. It would depend on the cause of the swelling. If the external area of the vagina is swollen because there's an ingrown hair, an intact pimple, or a cut (such as from a fingernail), a warm compress (warm-to-hot wet washcloth) will help bring in macrophages (the cell structures that consume infections). You'd wet the cloth with warm-to-hot water (hot like washing dishes in a sink), and fold the cloth in half, then half again, and again in half (so it is narrower). Wrap a towel around the washcloth until you get to your bedroom. Lay the cloth on the area for anywhere from 5 to 15 minutes; re-fold as one side gets cool, and re-apply a warmer part of the cloth. You can repeat this as needed, if it makes it feel better. In between times of using the wet-warm cloth, it'll be best to allow room air to the area (if your room is a comfortable temperature). Put a folded towel or small pillow between your knees and lay on your side; in that position, you can still cover yourself with a sheet or blanket. If the "swelling" is from any kind of injury or trauma (example: hitting a bike seat ; or too-rough sexual intercourse), ice may be better. BUT -- the skin in that area is very delicate. You'll need a barrier between you and the ice, such as a thin towel or even a T-shirt wrapped around the ice so you just get some of the coldness. **Never apply ice or ice pack directly to the labia or outer vaginal area.** IMPORTANT NOTES: 1. If you have been a victim of assault or rape, do not do any "self" treatment until after you've been examined at the E.R. Don't delay in getting examined. Don't shower or wipe yourself-- just go to the E.R. 2. Neither ice or hot compresses will help STDs, such as an outbreak of Herpes. If you are unsure why there is swelling, always consult a doctor first.

Advantages and disadvantages of microwave radiation for heating a room?

Microwave radiation won't heat a room. For microwave radiation to heat something, the "something" must contain water . It is the water molecules which get heated. Irradiate a room with microwaves and you are likely to kill the cat.

How does heat get from inside the boiler to the wall behind the radiator?

Conduction of heat energy from the source to the water in the boiler. A pump moves the hot water to the radiator. The heat radiates out from the radiator to the air, where convection then circulates it through the room.

Why do some people put silver paper behind their radiators?

In your house this will tend to direct SOME of the heat into the room and away from the walls.

How is heat from the air surrounding the radiator transferred to the air in the rest of the room?

Heat gets into the room in two ways: convection and infrared radiation . The "fins" of a radiator heat the air molecules around it, causing them to expand. As the hot air expands, it rises, creating a vacuum behind it.

Can you put aluminum foil in oven?

Yes you can, in a standard conventional or convection oven but not in a microwave oven.

Why heat is only absorbed by an object when it is covered by an aluminium foil which remains cool?

The aluminum foil makes a good reflector for the infrared radiation. Although metals tend to be good conductors and aluminum is no exception, the fact that it is beaten extremely thin makes it difficult for to disperse throughout. As a result the aluminum stays relatively cool and the object in question continuously recycles the wasted heat energy that is emitted.

Is a clear or blue solar pool cover better at passively heating pool?

Clear is better. It allows more solar light thru to do the heating than blue.

How does a hot water radiator heat a room?

The hot water heats the metal of the radiator, which heats thesurrounding air. The warm air circles round the room.

Is tin foil heat resistant?

Tin foil (aluminium foil) is a an very good conductor of heat. Thismake aluminium foil a very poor heat resistant material.

What is heated by radiation?

Radiation is a method of heat transfer that does not rely on anycontact between the heat source and the heated object (as is thecase with convection and conduction) Examples of radiation is heatfrom the sun or from the fliament of a light bulb