Bath question
- Thread starter VeNT
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TheCrow said:cut open you kettel, put the elament in the bath, it will take a bitty longer than it dose for a cuppy but should do u fine
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thats a really good idea actually..
if your VERY carefull no water gets splashed onto the electrics
Make a boiler out of the kettle.
Place a copper coil inside the kettle, fill the kettle with water, switch on and slowly move cold water through the coil.
You probably won't get a sufficient enough amount for a bath however.
That's when you put into force ten kettles ... and forget electricity costs money.
Place a copper coil inside the kettle, fill the kettle with water, switch on and slowly move cold water through the coil.
You probably won't get a sufficient enough amount for a bath however.
That's when you put into force ten kettles ... and forget electricity costs money.
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KaHn said:
North easterners KaHn .... north includes Manchester, Leeds and Liverpool, which is the south really.
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Maths to the rescue!
Say your bath is 5 feet long, 2 feet six inches wide and you want to fill it with 18 inches of water. That's 18.75 cubic feet, and if we convert to metric because imperial units are stupid, we find that it's 530 litres, which weighs 530 kg.
The specific heat capacity of water is about 4.2 J/kg/K, which is the number of Joules required to heat one kg of water by one degree K. We want to heat it from room temperature (23 degrees C) to say 38 degrees C, for a nice hot bath. That's a rise of 15 degrees.
Thus we need 4.2 * 530 * 15 = about 33,600 Joules to heat up the bath. A fastish kettle heats 1 litre from 20 to 100 degrees in about a minute, so it provides 4.2 * 1 * 80 = 336 Joules per minute. We need to transfer a hundred times that much energy, so it would take about a hundred minutes.
Not counting the fact that you'll be losing energy from the water all the time. You're in for a long wait
Say your bath is 5 feet long, 2 feet six inches wide and you want to fill it with 18 inches of water. That's 18.75 cubic feet, and if we convert to metric because imperial units are stupid, we find that it's 530 litres, which weighs 530 kg.
The specific heat capacity of water is about 4.2 J/kg/K, which is the number of Joules required to heat one kg of water by one degree K. We want to heat it from room temperature (23 degrees C) to say 38 degrees C, for a nice hot bath. That's a rise of 15 degrees.
Thus we need 4.2 * 530 * 15 = about 33,600 Joules to heat up the bath. A fastish kettle heats 1 litre from 20 to 100 degrees in about a minute, so it provides 4.2 * 1 * 80 = 336 Joules per minute. We need to transfer a hundred times that much energy, so it would take about a hundred minutes.
Not counting the fact that you'll be losing energy from the water all the time. You're in for a long wait
VeNT said:
Did I use the wrong term?
The bottom looks like the coil on a shock absorber ( same material as a kettle element ) and a straight bit goes up and ends in an insulated plastic covering and then a wire ends in a plug and it has a hook at the top so you can hang it over a bucket ( and possibly a bathtub ). I saw one being used ages ago at someone's house. What are they called?
Basically it's the turn-the-kettle-into-a-heater idea, but using a tool that was designed specifically for this job and thus avoiding a potentially nasty accident.