LPG storage

Ours are on the back verandah, out of the garage etc and hidden from view. I wouldn't store them in any room unless it has been made for that specific purpose. Nor inside a car.

Good idea to get them out of the garage.

It may depend upon your garage as to where you store it. If there is a leak LPG is heavier than air so will pool in low areas. Most garages are fairly level but the gas may flow out and away safely. Other garages, say in a basement of a block of units, may find drains or may just sit and pool in the whole basement.

Storing the cylinder outside in the weather brings with it other issues such as rust which will cause a leak. A dry well protected garage would normally be the best place to store a cylinder, away from little people who may turn on the cylinder, should be good.

I once was involved in rescuing two guys from a cellar beneath a large garage.
They were sticking cork flooring to the concrete with a volatile adhesive.
Both were unconscious and could be seen from the top of the stairwell.
Since this was a rural area backup was long time off.
A decision was made to take some deep breaths and two of us would sculldrag them outside one at a time.
In the forty or so minutes it took for backup to arrive the two tradies were just coming around with oxygen therapy.
The Risk:
The fireies stated if the light switch happened to be activated the tiny spark would have ignited the volatile atmoshphere and all four of us would have gone to heaven .
Not worth the risk John.
Go to Bunnings and buy a couple of large plastic garbage bins then hole saw a hole in the bottom and stand them on a couple of house bricks outside somewhere

John,

I think you got the answer above, the NSW Fire rules (click here)

The Queensland rule are here (click here)

So outside and out of the sun is the way, if not in use, turn off and put a plug in it (QLD rule) keep away from other fuels.

Really can't see why Australia can't use the International Standard LPG Cylinders with the safety valve. Until an appliance is screwed to the cylinder NO GAS will come out even if the valve is full on. Even has a safety float internally which will cut off the gas flow if tipped over.