Motorhome hire, the good, the bad, or the ugly?
Nov 30, 2019 22:10:47 GMT
Post by tyrednexited on Nov 30, 2019 22:10:47 GMT
AIUI, Camping Gaz (cartridges) now contain an element (20%) of propane. I think the cylinders, however, are still 100% butane.
Given that pure butane ceases to "gas off" at around 4°C, it is pretty useless in low temperatures, the addition of propane at low concentrations will compensate somewhat for this.
The effect is exacerbated by the demand placed on the gas, however, as even in the regions above 4°C, butane gets "lazy" at gassing off. If you place the demand of a 6KW gas heater on it (as I do), propane simply cannot keep up with the demand in anything but temperate conditions, and the system will shut down.
Propane, however, is largely unaffected by "normal" winter conditions, gassing off down to -40°C, and can meet high demand at even the lowest temperatures.
(Even with refillables, I'm careful where I fill with Autogas. The composition varies by country; UK is 100% propane, other countries use varying proportions of butane against the propane - composition is less of a concern for its prime, automotive use, as this consume gas in its liquid state, rather than the gaseous state used for domestic use).
Given that pure butane ceases to "gas off" at around 4°C, it is pretty useless in low temperatures, the addition of propane at low concentrations will compensate somewhat for this.
The effect is exacerbated by the demand placed on the gas, however, as even in the regions above 4°C, butane gets "lazy" at gassing off. If you place the demand of a 6KW gas heater on it (as I do), propane simply cannot keep up with the demand in anything but temperate conditions, and the system will shut down.
Propane, however, is largely unaffected by "normal" winter conditions, gassing off down to -40°C, and can meet high demand at even the lowest temperatures.
(Even with refillables, I'm careful where I fill with Autogas. The composition varies by country; UK is 100% propane, other countries use varying proportions of butane against the propane - composition is less of a concern for its prime, automotive use, as this consume gas in its liquid state, rather than the gaseous state used for domestic use).
