How to change a gas hose

You should replace gas hoses after two to five years. Here are some tips to help you buy a new hose and fit it yourself.

Make sure you buy a gas hose

Gas hoses are sold in outlets that sell gas and gas appliances. These include DIY shops, hardware stores and shops that sell cabin equipment. The hose must be no more than 1.5 metres long. Ask in the shop, and check the label to make sure the hose is suitable for propane.

Gas hoses are sold separately or as part of a set which includes hose clamps to attach the hose. You can also buy gas hoses that have a regulator connected at one end. If you buy this type, all you have to do is fix the loose end to your gas appliance. If you only buy the gas hose, you will have to fix it to the regulator yourself.

Remove the old hose

Make sure the gas is turned off before you start. The gas hose is attached using hose clamps, narrow metal bands that are either screwed tight or clamped together around the ends of the gas hose. To remove the old hose, you must first loosen or unscrew these. Then gently twist the hose off the attachment points on the regulator and gas appliance.

Attach the new hose

Smear a little liquid soap such as Zalo on the attachment points. This makes it easier to get the new hose on. Push and twist the new hose into place over the attachment points. Tighten the hose clamps so the hose is seated firmly around the attachment points. Be careful as you tighten – if you use too much tension on the hose, you could burst it.

Check for leaks before you use the appliance

Do a leak test before you turn on the gas, to make absolutely sure that the connections are tight. Squirt concentrated soapy water onto both ends of the hose. Then turn on the gas. If you see any bubbles in the soap at any of the connection points, you have a leak. This means you need to tighten the clamps a little more.

What to remember when you buy a gas hose:

  • The internal diameter of the gas hose must match the external diameter of the attachment points. Take the old hose to the shop, check the user instructions or measure the attachment points
  • The gas hose must be no more than 1.5 metres long
  • Check the label and ask in the shop whether the hose can be used for propane
  • Check the date stamp on the hose. Gas hoses are ‘perishables’ and the year of manufacture should be as recent as possible

How to change a gas hose:

  • Loosen the hose clamps
  • Twist the ends of the hose carefully away from the attachment points
  • Smear a little liquid soap on the attachment points before pushing the new hose on
  • Tighten the hose clamps so the hose is seated firmly around the attachment points
  • Check for leaks before you turn on the gas

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