Butane Cylinders - 4.5kgCylinder connection can be a real area of confusion for customers, which is why we have compiled a guide to help you.
This section of the guide shows you step-by-step how to properly connect a 4.5kg butane cylinder to your appliance, with details of how to remove and replace regulators.
Follow the steps below, taking special note of the safety warnings.
How to Connect a 4.5Kg Butane Cylinder
![]() ![]() ![]() This cylinder takes a regulator that screws on to the valve outlet. Both have a connecting nut that incorporates a black sealing washer.
Check that the valve handwheel is off by turning clockwise
Remove protective black cap and retain for future use.
Inspect the black sealing washer on the regulator for damage before connecting. Replace the washer if faulty.
Fit the connecting nut (left hand thread) to the cylinder using a suitable spanner. Tighten firmly, but do not over-tighten as this can damage the washer.
When gas is required, turn the valve handwheel anticlockwise.
How to Disconnect a 4.5Kg Butane Cylinder
![]() ![]() NEVER disconnect the regulator (or connecting nut) with the cylinder valve open.
Turn the valve handwheel off (clockwise rotation).
WAIT until the burner and pilot lights have gone out.
If the flame does not go out – leave appliance alight and contact the Calor Gas Emergency Service number on 08457 444 999.
Disconnect the regulator (left hand thread) with a suitable spanner.
Screw protective black cap back on to cylinder valve outlet.
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