standby power electric water heaters
standby power electric water heaters
Most electric water heaters do not have serious insulation of the access hatches, most have a simple plastic cover with a hole to pass the electric supply. Can someone calculate the consumption of this hatch, which is about 20 cm in diameter and whose temperature is between 50 and 60 °? How many Gwh would be saved on the whole of France if this hatch were properly insulated?
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- Philippe Schutt
- Econologue expert
- posts: 1611
- Registration: 25/12/05, 18:03
- Location: Alsace
- x 33
- Philippe Schutt
- Econologue expert
- posts: 1611
- Registration: 25/12/05, 18:03
- Location: Alsace
- x 33
- elephant
- Econologue expert
- posts: 6646
- Registration: 28/07/06, 21:25
- Location: Charleroi, center of the world ....
- x 7
What prevents you from stuffing a little rock wool in it? It is thermal insulator, non-conductive of electricity and non-flammable.
For my part, I have a boiler (150 liters) connected to my gas boiler. In summer mode, I connect the boiler to a timer so that it operates only between 3 a.m. and 10 a.m. I saw savings. It is a modern boiler without pilot light.
For my part, I have a boiler (150 liters) connected to my gas boiler. In summer mode, I connect the boiler to a timer so that it operates only between 3 a.m. and 10 a.m. I saw savings. It is a modern boiler without pilot light.
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elephant Supreme Honorary éconologue PCQ ..... I'm too cautious, not rich enough and too lazy to really save the CO2! http://www.caroloo.be
As an elephant I put rock wool. I am surprised by the result of philippe schut because a water heater consuming about 2 kwh / day in standby it seems to me that iron conducts heat better than polyurethane and I thought that a lot of losses would leave from this plate. 2kwh day is 730 kwh year. We can ask the question differently how not to consume these 2 kwh?
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- elephant
- Econologue expert
- posts: 6646
- Registration: 28/07/06, 21:25
- Location: Charleroi, center of the world ....
- x 7
Raymon, where you get your 2 KWh / day, Philippe Schutt speaks of 891 W / h per year. (for the place we are talking about)
That said, it is not excluded that the boiler radiates 2 KWh / day even if we do not take water. It's a lot (2 X the consumption of a fridge) and you have to ask yourself several questions:
what is the volume of the boiler?
what is its T ° of water?
household composition?
is it not possible to meet the consumption of hot water in the household by reducing the T ° of water?
is there not a way to reduce consumption by delaying the switch-on of the device as much as possible (eg 1 to 2 hours in the morning instead of 22 pm)?
what is the outside temperature of the boiler at the end of the heating period?
I had seen positive attempts to overheat the boiler, but I do not remember where.
That said, it is not excluded that the boiler radiates 2 KWh / day even if we do not take water. It's a lot (2 X the consumption of a fridge) and you have to ask yourself several questions:
what is the volume of the boiler?
what is its T ° of water?
household composition?
is it not possible to meet the consumption of hot water in the household by reducing the T ° of water?
is there not a way to reduce consumption by delaying the switch-on of the device as much as possible (eg 1 to 2 hours in the morning instead of 22 pm)?
what is the outside temperature of the boiler at the end of the heating period?
I had seen positive attempts to overheat the boiler, but I do not remember where.
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elephant Supreme Honorary éconologue PCQ ..... I'm too cautious, not rich enough and too lazy to really save the CO2! http://www.caroloo.be
Static losses are 2,41 kwh for a recent 300 l atalantic water heater:
http://www.easy-ballon.com/chauffe-eau- ... table.html
Yes these are the losses for the water heater but as the polyurethane insulates a little better than iron ...
The total daily consumption observed at my home or at my tenants is between 6 and 8 kWh day with water at 50-55 °.
http://www.easy-ballon.com/chauffe-eau- ... table.html
Raymon, where you get your 2 KWh / day, Philippe Schutt speaks of 891 W / h per year. (for the place we are talking about)
Yes these are the losses for the water heater but as the polyurethane insulates a little better than iron ...
The total daily consumption observed at my home or at my tenants is between 6 and 8 kWh day with water at 50-55 °.
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A discussion on the performance of water heaters:
http://www.bricozone.be/fr/plomberie/t- ... 55666.html
89% yield result.
I don't know how to put the APER doc in pdf it is on this page:
https://www.google.fr/search?client=ubu ... 2085251707
http://www.bricozone.be/fr/plomberie/t- ... 55666.html
89% yield result.
I don't know how to put the APER doc in pdf it is on this page:
https://www.google.fr/search?client=ubu ... 2085251707
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