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Old 05-07-2009, 01:25 AM   #11 (permalink)
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Ours also automatically shuts off, but the water boils for about 10-15 seconds before there is enough steam to heat up the "off" switch. When the jug is almost full this drops to only a few seconds. When I'm in the kitchen I try to manually switch it off as the water starts to boil, or just before, since those extra seconds can probably save 10%-20%.

Hopefully next year we will install a hot water tank in the basement, heated by solar panels and ventilation heat pump. Then I will fill the jug with warm water at the start, knowing it came at least partially from RE, requiring less energy to boil it. Now our hot water comes from an on-demand gas heater, which is not very efficient, plus I'd waste a lot of cold water waiting for the hot.

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e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
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Old 05-07-2009, 11:14 AM   #12 (permalink)
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For comparison, I have a rocket stove for camping, was able to boil half a litre in a covered pot in about 6 minutes with 200 grams of wood. Don't know the moisture content, just a couple random small branches from the pile and it hadn't rained in several days.
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Old 05-19-2009, 09:31 AM   #13 (permalink)
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I have been thinking of this a lot, and have decided to get as efficient of electric kettle as possible to replace using our old tea kettle on our propane burning kitchen stove. Our electricity is solar and wind produced (with our own PVs and wind generator), so our electricity is almost free, or more accurately, our electric bills were paid in a lump, many years ago, when we bought and installed the PVs and wind generator.

For me, it is a choice between buying propane to heat the water, or using "free", non polluting electricity.
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Old 05-19-2009, 11:30 AM   #14 (permalink)
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That's the way to go!!!
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e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
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Old 06-23-2009, 10:27 PM   #15 (permalink)
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I have found that using a pressure cooker saves up 75% on time and energy,. It can be used with gas or electric or any heat source. They are made in all different sizes and materials. Check out cooking times for different foods with a pressure cooker. Amazing, they are turning up in many department stores.
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Old 12-09-2009, 04:13 PM   #16 (permalink)
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I bought a 500W travel heating coil for boiling water and did a test today: It took about 3 times longer to boil 0.5 liter of water than in the 2000W electric jug, and used 58Wh. So I'll stick to the jug, unless I need a small amount of hot water (the jug has a minimum of 0.5 liter).
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e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
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Old 06-29-2024, 10:49 AM   #17 (permalink)
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Reviving this long dead thread, as today I stumbled upon this vid, which included a similar test of the energy consumption of different methods of boiling water as I did eons ago.

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e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


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