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Calor discontinuing some of their range


Philip

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10 hours ago, MtB said:

 

There is very little gas in a Calor gas bottle, especially not a full one.

 

Most of it is liquid. 

According to a frequent poster, there are many litres of water too.  Must be, or where else would that condensation come from when the bottle is used?

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7 minutes ago, Tacet said:

According to a frequent poster, there are many litres of water too.  Must be, or where else would that condensation come from when the bottle is used?

 

The cylinders do not 'hold water', but they do contain the constituent parts of water.

 

 

How much water does burning propane produce? - Tiny Wood Stove

How much water does burning propane produce?

Moisture buildup can be a big problem in tiny spaces during the Winter.  Without regular ventilation, water from cooking, showers, and breathing can build up and condense on cold walls and windows.  In severe cases, moisture can create mold growth.

If you're using an un-vented or "vent-free" propane appliance like a catalytic heater, "blue flame" heater, or certain instant water heaters, your appliance is adding 1.6 Kgs of moisture into your space for every Kg of propane burned.

 

Why does burning propane produce so much water?

It doesn't seem possible, does it?  How could one kg of propane contain more than one kg of water?  Let's take a look at the chemistry.

C3H8 (propane) + 5O2 (oxygen) → 3CO2 (carbon dioxide) 4H2O (water)

For each molecule of propane burned on the left, 4 molecules of water are released on the right.  The molar mass of propane is about 44 grams/mol.  The molar mass of water is about 18 grams/mol.  So:

 

44 g Propane + Oxygen → Carbon Dioxide + 4*18 g Water
44 g Propane + Oxygen → Carbon Dioxide + 72 g Water
1 g Propane + Oxygen → Carbon Dioxide + 1.64 g Water

 

So, where is all that extra weight coming from?  In fact, very little of the weight of the water produced comes from the propane itself.  By weight, water is mostly oxygen, and the oxygen comes from the air.  If we add the molar mass of the remaining molecules, the equation balances nicely:

44 g Propane + 5 * 32 g Oxygen → 3 * 44 g Carbon Dioxide + 4 * 18 g Water
44 g Propane + 160 g Oxygen → 132 g Carbon Dioxide + 72 g Water
204 g Reactants → 204 g Products

 

Edited by Alan de Enfield
  • Greenie 1
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4 minutes ago, Tacet said:

According to a frequent poster, there are many litres of water too.  Must be, or where else would that condensation come from when the bottle is used?

 

People have some very strange ideas about LPG....

 

Combustion of propane + oxygen = carbon dioxide + water

 

C3H8 + 5O2 = 3CO2 + 4H2O 

 

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One wonders if anyone has rigged up a still over the cooker. Might be quite a handy thing to have on a boat at sea with propane tanks but not much fresh water. 

Of course the quantities would be tiny but better than getting condensation in the boat. 

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1 hour ago, magnetman said:

One wonders if anyone has rigged up a still over the cooker. Might be quite a handy thing to have on a boat at sea with propane tanks but not much fresh water. 

Of course the quantities would be tiny but better than getting condensation in the boat. 

Deleted.

Edited by rusty69
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16 hours ago, magnetman said:

 

4. Use of Cylinders

Cylinders may be used only as a container for Gas and not be sold, exchanged (other than for the Purpose of the Agreement), hired, assigned, transferred, mortgaged, lent, abandoned, nor damaged, decanted, filled or tampered with.

 

--------

 

When you sell the boat it is transferred. This is not allowed to happen with the gas bottles apparently. 

 

ETA I should add I thought rusty just said remove the bottles. I don't think he will have to return them to Calor but they will need to be removed per the agreement. 

In practice who is going to know or care ?

 

 

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