What type of gas is used on an LPG converted cooker?
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Is it Propane or Butane which is used on an LPG converted cooker?
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Propane in North America is a mixture of mostly propane and some butane as well as other trace gases.
Just to clean up some disinformation, butane does not burn as clean as propane and it’s relatively useless in colder temperatures because it can’t boil to produce vapor…Propane is useful into the minus 30′s whereas butane craps out at around zero…
LPG = liquid propane gas
Most cooktops come ready to run on natural gas, and require conversion to run on propane.
it is normally propane but butane is better, it is much cleaner, however it is more $$$
also butane has less pressure about 4 PSI at 25ºC against 120ºC for propane
so depending on the control,some adjustment may be needed.
Guru
Propane or butane. You just need the correct pressure regulator for the gas you are using (but a butane regulator won’t fit a propane cylinder, and vice-versa). Your LPG merchant will be able to supply you with the correct regulator.
In the UK, butane is used at 28mBar and propane is used at 37mBar. This is because one mole of C4H10 requires 6.5 moles of O2 to burn completely, whereas one mole of C3H8 requires 5 moles of O2. And according to the Ideal Gas Law,
P * V = n * R * T
so the number of moles (n) is proportional to the pressure (P). However much pressure you require for propane, you can use butane at 0.77 times that pressure without changing the injector or adjusting the aeration.