Is electromagnetic radiation (EMR) from a heating pad or blanket dangerous?
There is no final verdict about the danger of EMF radiation, but personally I would avoid over exposure to it.I would definitely choose an infrared heating pad, which uses natural stones to emit infrared heat and has an EMF blocker as well.You can see the complete comparison between a regular heating pad and an infrared heating pad here: Heating Pad for Back Pain: Far Infrared vs. Electric (Regular)
How much would it affect my electricity bill if I use an electric induction of 1600W (if room consists only of a tubelight, bulb, fan)?
I am considering that you use only the appliances which you have described in your question.1-Ceiling Fan~80W2- Tube light-40 W(if it's modern one)3-Bulb~20W(I think you would be using either CFL or LED)4-Induction-1600WNow add all the wattage ratings, if it's differing from my aproximations then see the wattage rating on each appliance individually.Total= 1740Wnow on an average if you use this load(except induction) for 15 hours out of 24, then 140*15/1000=2.1units, in a month 2.1*30=~60 units.And suppose you are using your induction for 1 hours daily then in one month it will take 1.6*30=48 units i.e. you are using more than 100 units so your charges will be 3.6 Rs.(In Andhra Pradesh) per unit and your monthly bill would be around 380 to 400. Note- This was just approx calculation, bill will depend on your time of use and no. of used appliances. It will also depend upon per unit charge imposed by your local utility, depends on ur state also. All states don't have same electricity charges. It will also be affected by the seasons.
Do infrared 250 Watts, 120 Volts bulbs consume a lot of electricity? We use one in bathroom to keep it dry.?
You answered your own question. They consume 250 watts of power, or 2.5 X a 100 watt bulb, etc. The current it draws is measured in amps, and can be calculated as follows: 250/120=2.083 amps. You pay for your electricity by the kw/hr. 1 kw = 1000 watts. If you want to calculate the cost of running the infrared lamp: 250 watts = 0.25 kw. For each hour you run your lamp, multiply 0.25 X cost per kWh from your utility bill.
What's the most efficient way to generate heat from electricity?
By "waste form of energy," I think that San means that heat, another form of energy, is a more difficult one to control. It is produced as a by-product of the conversion or transfer of energy, and the escaped heat is usually dissipated and wasted (examples: car exhaust, light bulbs). So heat is often perceived as wasted energy.It takes a surprising amount of electricity to produce heat, around 1000-1500 Watts just to run a space heater that warms a few cubic feet of space. A given amount of heat requires a given amount of electricity, so you can't generate heat more efficiently. All you can do is channel it to where it is needed with lower losses. For example, an electric blanket is relatively efficient because the heat is close to your body, or, as San says, an infrared space heater conveys more energy to your skin without dissipating as much in every direction.
Are infrared heaters energy efficient?
It depends on the situation. The key detail to note is the difference between efficiency and effectiveness.Infrared heaters are about 85% efficient at emitting radiant heat, while the rest of the heat is conducted through the frame. If the heat conducted through the frame contributes to whatever you are trying to heat then the infrared heater can be considered as 100% efficient at converting electricity into usable heat. If 100% sounds high consider this: The use of a heat pump for heating can have a coefficient of performance of 2-4. COP is not the same as efficiency because the heat pump moves heat rather than generating it, but the result of its use is that it is up to 4 times more efficient at using the energy than that infrared heater. There's also's effectiveness to consider. I once surveyed a railroad car machine shop building that operated year round. In the winter they would periodically open gigantic doors to switch the cars out and bring in a fresh 40 ton ice cube (rail car) to work on it. In this situation using infrared heaters is highly effective because it heats objects directly. Using traditional convection heaters to heat the air would be a bad choice here because all the hot air would escape every time they switched cars. That said, radiant heaters are directional so it feels like trying to warm up by a bonfire on a cold night. One side of your body gets warm and the other freezes. The last thing to consider is what is effective vs what is cheap. Natural gas is so cheap that it often makes sense to use a forced air convection heater (~80% efficient) instead of an electric powered infrared heater.
Is it unhealthy to use an electric heater to heat your bedroom?
Electric heaters produces heat in the rooms to warm up the room but due to the heat air becomes dry in the rooms. Especially while sleeping in bedrooms with electric heaters the problems areBreathing dry air prompts to respiratory issue like asthma, bronchitis, sinusitis furthermore nosebleeds because of dried layers.Dry air likewise dries out mucous membranes which are moist, in this way catching all tidy and contamination causing agents, prompting to their inflammation.Absence of moisture is additionally unsafe to your skin. Dry skin is a typical event amid winter, which likewise causes irritation. Staying inside with heaters can worsen this condition as dry air vanishes moisture from the skin.Absence of moisture in the air vanish tears from the eyes, making it hard to keep up the fragile adjust required for soggy and healthy eyes.To be safe and avoid these health problems you can opt energy efficient wall mounted panel heaters as these works on convection principle and does not emits dust particles in the air.
Can you hook a 100-watt solar panel directly to a 60-watt light bulb for small amount of passive cabin heating?
Not sure. Solar panels give out DC power often at something up to 20 volts or so. Varies with the amount of sun. There are cheap Chinese PWM units that will keep the voltage at a uniform 12 volts so that you can use standard little heaters and lights designed for cars or trailers. And also connect to a little lead acid battery to use for storage.I once had a 60 watt bulb for low voltage use that fit in a standard edison screw style base, but it was expensive. You might find a car headlight that would work second hand that would work fine. You might be able to wire a standard old fashioned 60 watt incandescent bulb and use it for heat, but it would probably only put out 20 percent of its normal light output if that. Rather dim, and not even much heat I suspect. A human being puts out probably at least 200 watts just sitting around for comparison.So a mirror the same size of the panel would probably bring in several times more heat, while the sun shines the right direction.
How much does it cost to run a 250 watt heat lamp for a chick brooder?
lets keep this simple about .75 a day
How many amps will a heat lamp draw on average?
Most heat lamps are rated at 120v, 250 watts, so 250 watts divided by 120v is 2.08 amps. It is a simple algebra formula, watts divided by volts equals amps.
Why do LED bulbs consume less power compared to conventional bulbs?
Actually the correct question is Why do LED bulbs consume less power.Current without voltage specs is meaningless.Incandescent bulbs emit light by heating a resistive filament of tungsten to very high temperatures, like 3000 degrees C or thereabouts.They glow white hot and the light comes from the visible light spectrum emissions of the hot filament. But in terms of energy only a couple of percent of the electric power used is emitted as light energy. The remainder is heat in the infrared portion of the emissions spectrum.All the area under the longer dotted line except for the region around 500 to 700 is wasted energy that does not add to human’s visual light perception.LEDs make light by completely different process. The Light is emitted by a semiconductor junction, an entirely different physics process. While its not 100% efficient, there’s still heat produced, a much larger fraction of energy goes to making light energy. There’s a great deal more electronics complexity involved. The Incandescent was notable for its simplicity of operation. Its taken us 40+ years of intense R&D from the ability to get light from LEDs to where they can produce light of the right color and high enough intensity to be useful.Typically a 9 W LED bulb makes as much light as a 60 or 75 Watt incandescent bulb.