My housemate and I live in this rental property which requires gas to run hot water. We once ran out of gas in the evening, so I rung The Gas Cylinder up the next day, and they were able to deliver a gas cylinder to our place on the same day we order it. But I was very surprised that the 2 of us have used up a 40 L gas cylinder ($140) in 3 months. Hope it's only a co-incident and that we won't be running out of the new cylinder so soon in the winter!