Gas Storage Hot Water Systems offer true mains pressure hot water.

So you will get pretty much equal hot and cold pressure.

As long as you have adequate storage capacity to suit the household's requirements, they offer plenty of hot water at a booming pressure.

Unlike their continous flow cousins, they do not require a power point. So even if the power goes out, at least you've still got hot water! 

In terms of efficiency, they range from 3 -5 stars.

The Rheem Stellar 330 is one of my favourites and most of Perth's!.

5 star efficiency, 10 year cylinder warranty and they just look great! 

There are plenty of other's too.

If you've got the room for a storage hot water unit, they really are still a good option.