Microwave vs stove - Heating water

fleabag

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Oct 1, 2007
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What would be more efficient, using a 120V microwave to heat water or to use a 220V electric stove to heat water? The reason I ask is because resistive heating is generally not as efficient as the microwave when it comes to heating water. Microwave ovens are most efficient at heating water and since they emit little heat, all the energy being directed is used to heat the water unlike in a stove where it heats the coils, which heats air that heats the pot which heats the water. Maybe I should put thermal paste on the stove to improve efficiency. :D
 

Nox51

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Jul 4, 2009
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Walk in, put water in container, put container in closest appliance, turn on, walk out. Walk in after some time, use boiling water, walk out. Congrats you have just significantly improved the efficiency of your life.
 

fleabag

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Walk in, put water in container, put container in closest appliance, turn on, walk out. Walk in after some time, use boiling water, walk out. Congrats you have just significantly improved the efficiency of your life.

Microwave and stove are right next to each other.

electric kettle would be the best, i'd assume.

wtf, are you dumb? That would be the worst because it's just like the stove but only at a lower voltage.
 

Matthiasa

Diamond Member
May 4, 2009
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Depends, and induction stove would probably be more effient then those though. :p
Well assuming you had the right stuff to use with them.
 

ahenkel

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Jan 11, 2009
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Actually an electric kettle is the most efficient method for these reasons

1. Good ones have a heating element in direct contact with the water.
2. they are insulated so the heat is retained
3. They will automatically shut off, and since insulated maintain that temp longer.
4. it takes roughly 3 -4 minutes to boil water in an electric kettle.
 
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gaidensensei

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May 31, 2003
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Fire is the best. You will use 0% billed gas, and 0% electric draw.
Think of how much energy you can save if you never turn the microwave and/or stove on for the rest of your life if you used fire to heat your water.
 

ahenkel

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Jan 11, 2009
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Well seeing as how most people don't live in the woods fire is probably out. Also burning combustible material is a type of energy consumption.
 

Colt45

Lifer
Apr 18, 2001
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wtf, are you dumb? That would be the worst because it's just like the stove but only at a lower voltage.

Are you dumb?

Resistive heating is 100% efficient, and most of it ends up in the water. There will be a small loss in the wiring, and some heat leaking from the pot, but the vast majority will be in the water. It's like taking a pot and sticking the stove burner inside it.

lower voltage? I don't see the relevance. I2R losses in the wiring are damn near zero (which is why the cord doesn't melt).
 

gaidensensei

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May 31, 2003
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Well seeing as how most people don't live in the woods fire is probably out. Also burning combustible material is a type of energy consumption.

Does OP fit your definition of most people..? :awe:
I mean he wants to do that 5t fluorescent lamp thing, this is even better in net energy savings. This is.. CAVEMAN we be talking about.
 

ahenkel

Diamond Member
Jan 11, 2009
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LoL I see your point. Also fire is much cooler. Although I wouldn't want to park my vehicle next to one if I had just inflated my tires to sidewall.
 

canis

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Dec 10, 2007
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What would be more efficient, using a 120V microwave to heat water or to use a 220V electric stove to heat water? The reason I ask is because resistive heating is generally not as efficient as the microwave when it comes to heating water. Microwave ovens are most efficient at heating water and since they emit little heat, all the energy being directed is used to heat the water unlike in a stove where it heats the coils, which heats air that heats the pot which heats the water. Maybe I should put thermal paste on the stove to improve efficiency.

Microwave and stove are right next to each other.



wtf, are you dumb? That would be the worst because it's just like the stove but only at a lower voltage.

Don't insult if you don't know jack shit about something.
 
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ShawnD1

Lifer
May 24, 2003
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electric kettle would be the best, i'd assume.
Probably this. The heating element is right in the water, so this thing is like 100% efficient. Microwaves are extremely efficient, but not this good. Stove is horribly inefficient; the speed of boiling water radically changes if I just pick a pot with a different shape on the bottom or copper vs aluminum bottom.

edit
Posting in a fleabag thread :D
 

gaidensensei

Banned
May 31, 2003
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Alright fleabag I got the BEST way to heat your water, you pay 0% and in fact can make money instead.

Buy solar panel/shingles, harvest the transferred stored energy into a transducer and convert that to heat your water.

You will use 0 volts of electric draw, 0 ft.³ of combustible gas and best of all no consumption of any form of energy whatsoever unless you feel the Sun must be accounted for.

Perfect win-win situation. Post pics when you are done with it.

EDIT:
I forgot to mention that this method is 200% efficient because you gain out of it! This cannot be defeated, hands down.
 
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gaidensensei

Banned
May 31, 2003
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Technically you gain energy when you burn coal, so wouldn't the coal also be 200%?

Yeah, but remember that flebag has tires inflated to sidewall, combustion with any form of natural non-renewable resources will result in him losing maximum spec'd sidewall pressure and thus is therefore detrimental to his purpose in heating water. This would drop his efficiency some amounts because of the amount of energy that he would require to re-pump back up to specified pressure.
 

ahenkel

Diamond Member
Jan 11, 2009
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wait.. Wouldn't the most efficient way to heat water would be to convert the energy fleabag uses to create these threads, and along with that the combined energy of the people posting in a fleabag thread?
 

thescreensavers

Diamond Member
Aug 3, 2005
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If you inflate your tires to sidewall pressure, the gas you save can be used in a Gas stove.

This is the most efficient way to boil water.
 

ShawnD1

Lifer
May 24, 2003
15,987
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wait.. Wouldn't the most efficient way to heat water would be to convert the energy fleabag uses to create these threads, and along with that the combined energy of the people posting in a fleabag thread?
Masturbate in a bath tub full of water and hope the thermal energy from metabolism transfers to the water :hmm:


Alright I stole that idea from the Matrix, but it was a good idea. It's like slave labor but it's more efficient because you only need the slaves to be alive; they don't even need to work. For as long as they are alive, their body metabolism will convert food to heat. It's more efficient than just burning the food because a t-bone steak won't burn while it has water in it but it can be digested by a human at low temperatures while water is still present. Methane gas produced by the humans can be used to inflate my tires to sidewall.
 

PottedMeat

Lifer
Apr 17, 2002
12,363
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Are you dumb?

Resistive heating is 100% efficient, and most of it ends up in the water. There will be a small loss in the wiring, and some heat leaking from the pot, but the vast majority will be in the water. It's like taking a pot and sticking the stove burner inside it.

lower voltage? I don't see the relevance. I2R losses in the wiring are damn near zero (which is why the cord doesn't melt).

don't bother, man.
 

Vette73

Lifer
Jul 5, 2000
21,503
9
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Are you dumb?

Resistive heating is 100% efficient, and most of it ends up in the water. There will be a small loss in the wiring, and some heat leaking from the pot, but the vast majority will be in the water. It's like taking a pot and sticking the stove burner inside it.

lower voltage? I don't see the relevance. I2R losses in the wiring are damn near zero (which is why the cord doesn't melt).
That and the kettle is running at max sidewall pressure!!!

Fixed:awe: