IS YOUR REGULATOR definitely blocked or have you run out of gas?
Ensure your cylinder is not empty.
Are you using butane and has the temperature outside dropped to 1C or less?
If so, it would be worth changing to propane, which will flow in temperatures down to -40C. You won’t need to change your regulator but will need to change the hose connections.
If you’re sure it is a gas blockage…
Turn off the gas at the cylinder. If you are on a hook-up, you can safely use the mains electric space and water heating as normal. These do not pump out as much warmth as using gas and electric together, but it will be more than enough to keep the chill off. Turn down the blown-air fan, though, because having it on a high setting will cool the air quickly.
Do you carry a spare regulator?
This is a good idea if you are touring for an extended period, particularly during low season and if you don’t have a hook-up. This means you have the part to hand if you need it replaced by an engineer at night or on a Sunday, when the shops may be shut. You should not install the new regulator yourself.
The likelihood of failure is still relatively low: 3% of all installed regulators per year are affected, so don’t panic!
Look out for early warnings of gas problems
These include difficulty lighting the gas stove, low pressure and poor performance of appliances. It could indicate an impending failure. Get any such symptoms checked immediately by an approved engineer.