Have you ever run out of gas at totally the wrong time? I know that my tea obsessed wife has suddenly shrieked in a field due to the gas bottle being empty half way through a rainy weekend and the kettle won’t boil.

We run a CampingGaz 907 bottle, the blue butane one that holds 2.7kg of liquid gas but the theory is sound for any bottle. We weighed that empty one on a suitable kitchen scale and found it to be 3.6kg. Then we took the bottle to the shop and exchanged it for a full one, which we weighed at 6.35kg full.

Now that we know the full and empty weights, we then wrote down the weights for each percentage which helps on how much gas is left. Because we know how many nights we have been away on each bottle, it gives us a good idea not only “how much gas” but more importantly “how many nights before we run out?”. We have now calculated around 43 nights away on a full bottle but the weights table comes with us just in case.