All our sleeper cabs had CO2 alarms fitted .
I think you will find that most of the problems with the gas stoves have been down to ill fitting / or incorrect fitting of gas canisters or failed seals .
I used the large aerosol type gas cookers for many years . Firstly on fishing and motorsport trips then on trucking when I worked the distance and EU trips .
This type of cooker will leak if the canisters are not disconnected properly . I always removed the canister between use .
90% of the time the cooker was used in the open air .
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