butane fuel with universal tip that fuels all leading butane lighters and kitchen and hobby torches Low in non-volatile contaminants, which can cause burner valves to clog, affecting flame height ...

A butane torch regularly burns up its internal supply ... Remove the top from the butane fuel canister and give it a quick shake to get it ready. Hold the canister upside-down and gently insert ...

A man passing by a roadworks site says a flame torch burning dangerously close to gas canisters was left unattended by workmen.