Propane Gas Cooker

[Refueler]

butane & propane regs run on differing pressures each has a differing thread so they cant be used on the wrong gas bottles

Not always correct now - as Dual use regulators are now on market....

 

[Refueler]

What i mean is--on the calor website it show 3 propane regs,each with a differant outlet pressure (unless i read it wrong)

Best advice is to go to local Caravan centre and talk to them ... they will put in your hand the regulator you need.

Remember that Calor are catering for a multitude of uses of gases - leisure cookers are only a very small part of the business.

 

[Refueler]

Bin your regs & buy the correct ones 4 Calor

No - put old reg in locker and fit a new one from caravan centre.

You can get it at same time as exchanging your 'scrapyard' empty cylinder for full at the same caravan centre.

 

[Refueler]

One issue to consider is the relative safety of the different gasses.

LPG (Propane) is heavier than air, so a leak stays inside the boat, sinking to the bilge and other lower parts waiting your unfortunate ignition of it.

Butane is lighter than air, so it escapes out the locker, hatch, etc and goes on upward to dilute beyond the limits of flammability and declines to make your boat a floating bomb.

Where do people get such info from ? That is total rubbish !

BOTH gases are heavier than air and BOTH sink into bilges ...

Butane is HEAVIER than Propane and is why Butane is not a good gas to use in winter - at zero temps it fails to vapourise sufficiently to operate burners, in fact fails to pass through the regulator in many cases.

Density of Propane : ~ 0.507 kg/l Butane : 0.584 kg/l

The density varies very little and is the last vessels we loaded.

 

[cliffordpope]

Ahem. No, air has a density of 1.225 g/l @ 15°C. and Standard Atmospheric Pressure while butane is 2.52 g/l. Butane is more than twice as heavy as air!
Propane's relative gas density is 1.55 times that of air.

Care to review your Gas policy?

Hydrogen is lighter than air! Safe as airships.

 

[MM5AHO]

You're right, sorry. I was mixing up natural gas and propane.
NG is about 0.7-0.9 depending on composition.

 

[Refueler]

You're right, sorry. I was mixing up natural gas and propane.
NG is about 0.7-0.9 depending on composition.

Methane :

Gas PropertiesMolecular WeightMolecular weight : 16.043 g/mol
Solid phaseMelting point : -182.5 °C
Latent heat of fusion (1,013 bar, at triple point) : 58.68 kJ/kg
Liquid phaseLiquid density (1.013 bar at boiling point) : 422.62 kg/m3
Liquid/gas equivalent (1.013 bar and 15 °C (59 °F)) : 630 vol/vol
Boiling point (1.013 bar) : -161.6 °C
Latent heat of vaporization (1.013 bar at boiling point) : 510 kJ/kg
Critical pointCritical temperature : -82.7 °C
Critical pressure : 45.96 bar
Gaseous phaseGas density (1.013 bar at boiling point) : 1.819 kg/m3
Gas density (1.013 bar and 15 °C (59 °F)) : 0.68 kg/m3
Compressibility Factor (Z) (1.013 bar and 15 °C (59 °F)) : 0.998
Specific gravity (air = 1) (1.013 bar and 21 °C (70 °F)) : 0.55
Specific volume (1.013 bar and 21 °C (70 °F)) : 1.48 m3/kg
Heat capacity at constant pressure (Cp) (1 bar and 25 °C (77 °F)) : 0.035 kJ/(mol.K)
Heat capacity at constant volume (Cv) (1 bar and 25 °C (77 °F)) : 0.027 kJ/(mol.K)
Ratio of specific heats (Gamma:Cp/Cv) (1 bar and 25 °C (77 °F)) : 1.305454
Viscosity (1.013 bar and 0 °C (32 °F)) : 0.0001027 Poise
Thermal conductivity (1.013 bar and 0 °C (32 °F)) : 32.81 mW/(m.K)
MiscellaneousSolubility in water (1.013 bar and 2 °C (35.6 °F)) : 0.054 vol/vol
Autoignition temperature : 595 °C


Suggest simple answers ? Stop digging holes ?