Want to have a fridge that consumes only 0.1kwh a day?
One guy from down under converted a chest freezer into a fridge and consumes only 0.1kwh a day!
Yes that’s only 100 watt-hours a day. Do you know how much this consumes in 1 hour? Lets compute, 100watts-hours in a day / 24 hours = 4.16 watt-hour. Just like running a 4.16 watt lightbulb continuously. Now that’s savings!!
Forget those energy stars that you see when you buy a fridge. This one is about 10 to 20 times more energy efficient.
I remember back in school that warm air rises, and cold air descends. So if you have the usual fridge where you open the door horizontally, cold air escapes rapidly.
Now compare it with this chest freezer, you open in from the top, vertically. Guess where the cold air is? Its deep down inside the bottom part of the chest freezer. Less cold air excapes.
So what’s the difference between a freezer and a fridge? Just temperature. If somehow, you can control the temperature of this freezer and shutdown the compressor at about 4 degrees centigrade, it becomes a fridge. Well, that’s exactly what the guy did.
He created a device that does exactly that. Check it out at mtbest.net
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POSTED IN: Conservation, Eco Gadgets, Odd Power Projects
13 opinions for Want to have a fridge that consumes only 0.1kwh a day?
Peter Venable
Oct 18, 2006 at 10:44 am
You need to learn the difference between power and energy, watts and watt-hours. It’s nonsensical to talk about “watts per hour”. 100W x 24hours = 2.4 kilo watt hours / day.
spode
Oct 19, 2006 at 4:04 am
You’re units are wrong: you are confusing power (watts) and energy (watt-hours). The freezer supposedly draws 0.1 kilowatt-hours per day, which is equivalent to 4.16 watts of continuous power.
Teek
Oct 19, 2006 at 6:50 am
A Watt is 1 Joule per second. The fridge is on for 2 minutes per hour. So it uses 0.1KWh per day. A KWh is the equivalent of running a 100W appliance for 1h per day. It is nonsensical to quote power usage (watts) per hour, as that is the same as joules per second per hour.
This is an amazing fridge, however, as it costs the same to run as a bright light bulb that is only on for 1 hour per day!
Josh
Oct 20, 2006 at 12:22 pm
Sorry to burst your bubble, but your numbers make no sense. Wattage is a power rating, it measures energy consumption over time. Watt/hour is a meaningless dimension.
What you are looking for is kilowatthours (kWh) which measures actual energy consumption.
mike
Oct 20, 2006 at 11:32 pm
a watt is a unit of power over time- 100 watts is exactly that- 100 watts. 1 watt is exactly 1 joule per second. 100 watts a day doesn’t make sense. it
doesn’t matter any more than power/time which the watt already defines. so the question is: does this thing consume 4 watts or 100 watts?
John O'Leary
Oct 21, 2006 at 12:15 am
There is no such unit of measuremnt in use as watts per day.
Noel
Oct 22, 2006 at 1:34 am
oopps! Sorry about that guys. My bad. It was supposed to read 0.1kwh per day. Cheers!
Ty
Nov 29, 2006 at 12:32 am
I like what you have to say. I’m going to tell my friends.
Noel
Nov 29, 2006 at 4:04 am
Thanks Ty!
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Mar 23, 2007 at 12:34 am
[…] lastly, from UnpluggedLiving, who found a guy from down under who converted a chest freezer into a fridge that consumes only 0.1kw a day Where can I sign up? Good […]
greg
May 23, 2007 at 11:39 pm
great idea but wouldn’t it be easier to simply adjust the existing temperature control, and skip rewiring and battery powered controllers?
chest freezer
May 29, 2008 at 6:24 pm
[…] devices. He converted his chest type freezer into a fridge, less cold air escapes in the process.http://www.unpluggedliving.com/want-to-have-a-fridge-that-consumes-only-01kw-a-day/Chest Freezer - Freezers - BizRate - Compare prices, reviews & buy …Bargain chest freezer […]
Mark
Jun 5, 2008 at 11:59 pm
Good article. Either the .1 kwh or the 100 watt hour portion of the article is fine. You just need to change the watt-hour to watt in “Lets compute, 100watts-hours in a day / 24 hours = 4.16 watt-hour.”
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