Something to protect an outside 12kg gas cylinder from the freezing weather

Jo4

WestonDave wrote: »

No reason why the gas would freeze - possibly if you get some water in the regulator it might freeze and block the flow if its been out of use for a while.

It has been in regular daily use.

snowcat75

This sounds like a demand issue rather than the cylinder freezing from the outside.

If you draw hard from a cylinder it will cause the regulator to freeze due to the expansion of the gas, exactly the same as a fridge works by drawing high pressure gas and liquid to low pressure vapour through the expansion valve(the reg in this case works like an expansion valve in a fridge,freezer or a/c system) and both butane and propane are highly effective refrigerants, when co2 was a common welding gas in the 70-80s it was nessary to put heaters on the regulators.

Things like space heaters will always freeze a 47kg cylinder if put on 1 bottle with the reg turned up.

The simplest solution is to split the supply between 2 bottles and regs.

If the bottom of the cylinder is turning to frost and after a while the reg is freezing do the above and it will cure the problem, heating the cylinder will only increase the pressure and won't solve the issue.

pd001

Jo4 wrote: »

I will check with them what gas it is.

Rule of thumb
Propane..Red cylinder or green patio gas cylinders
Butane..Blue cylinder

see here..
https://www.attwoolls.co.uk/userfiles/files/gas_guide.pdf
or
http://www.calor.co.uk/products-and-services/gas-bottles/which-gas-bottle