Energy to heat water

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yann.t
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Energy to heat water




by yann.t » 23/04/10, 10:56

Hello to you,

I ask myself the following question:

Does 1 kWh electricity, 1 kWh gas and 1 kWh fuel oil, for example, 1 liter of water at the same temperature?
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by boubka » 23/04/10, 13:07

the answer is: yes ... regardless of the heating system
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by Napo dwarf » 23/04/10, 13:49

yes this is my last word


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by aerialcastor » 23/04/10, 14:56

There is the same energy in a kWh whether it is electricity, wood or something else.
But as Boubka pointed out, not all heating systems have the same efficiency.
Electricity has an efficiency of 100%.
For fuel boilers (wood, fuel, gas) a little energy is lost through the chimney flue. On your 1kWh one everything is not recoverable.
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by elephant » 25/04/10, 17:36

Absolutely: the heat diffused by the resistance of a boiler will be fully recovered in the water apart from some slight losses from the bottom. However, we may have lost a lot of energy at the power station and in the power lines to deliver this KWh to you.

For your information, we consider (in domestic installations) that one liter of fuel can produce 10 KWh of hot water.
In Belgium, in your gas bill, you are given a conversion factor in KWh / m³ (because your meter measures a volume of gas) and you are billed in KWh
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