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Posted: 5/23/2009 5:32:03 AM EDT
| My safe has an electrical outlet inside it. It came with a Goldenrod to keep the moisture down. Now, the Goldenrod is rated at 7 watts and I also have a small night-light which is also rated at 7 watts. Equal watts should give off the same amount of heat based on the energy consumption. So, why wouldn't a 7w night-light work as well as a Goldenrod and at the same time take up less space and eliminate the electrical cord? Can anyone think of any pros or cons about either method? |
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Quoted:
My safe has an electrical outlet inside it. It came with a Goldenrod to keep the moisture down. Now, the Goldenrod is rated at 7 watts and I also have a small night-light which is also rated at 7 watts. Equal watts should give off the same amount of heat based on the energy consumption. So, why wouldn't a 7w night-light work as well as a Goldenrod and at the same time take up less space and eliminate the electrical cord? Can anyone think of any pros or cons about either method? I'm not an electrical engineer, but I don't think it's simply a matter of comparing watts, I believe resistance makes a difference as fas as how much heat is put out. The golden rod doesn't take up that much space either. |
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Quoted:
False. A nightlight will produce the same amount of heat watt for watt. 1 watt = 3.4 btu. A 7 watt light bulb will produce 23.8 btu as will a 7 watt heating element. Actually that is incorrect. A good bit of energy is used up in creating light in the light bulb where as in a heater a much greater percentage of the energy is converted to heat. The heat you get from a light bulb is actually wasted energy. |
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Quoted:
Quoted:
False. A nightlight will produce the same amount of heat watt for watt. 1 watt = 3.4 btu. A 7 watt light bulb will produce 23.8 btu as will a 7 watt heating element. Actually that is incorrect. A good bit of energy is used up in creating light in the light bulb where as in a heater a much greater percentage of the energy is converted to heat. The heat you get from a light bulb is actually wasted energy. Which is exactly why flourescent and LED bulbs are more enery efficient. They don't waste as much energy creating heat. LEDs being almost no wasted energy. Approximately 90% of a incadescent light bulb's energry is turned into heat. So, deduct 10% and thats your answer. |
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Quoted:
Quoted:
False. A nightlight will produce the same amount of heat watt for watt. 1 watt = 3.4 btu. A 7 watt light bulb will produce 23.8 btu as will a 7 watt heating element. Actually that is incorrect. A good bit of energy is used up in creating light in the light bulb where as in a heater a much greater percentage of the energy is converted to heat. The heat you get from a light bulb is actually wasted energy. except in this applied case, light is the wasted energy. Heat is what he wants. |
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Quoted:
Quoted:
False. A nightlight will produce the same amount of heat watt for watt. 1 watt = 3.4 btu. A 7 watt light bulb will produce 23.8 btu as will a 7 watt heating element. Actually that is incorrect. A good bit of energy is used up in creating light in the light bulb where as in a heater a much greater percentage of the energy is converted to heat. The heat you get from a light bulb is actually wasted energy. The light is a by-product of the heat produced. A 7 Watt heater will produce the same amount of heat (btu/hour) as an incandescent light bulb. Energy Conversion Tables http://www.phy.syr.edu/courses/modules/ENERGY/ENERGY_POLICY/tables.html |
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