When the time comes to replace that old hot water tank, many people are taking a good look at the alternatives - there are many alternatives that offer more convenience at less cost - in other words good for you and good for the planet. Here we will look at one of them - the tankless water heated gas fueled.
This covers two basic types - natural gas tankless water heaters and the sort powered by portable liquid propane in gas bottles. Essentially they are exactly the same. Either of these types of gas is a good choice because it is cheap and easily transportable.
For me, the most important thing about the gas tankless water heater is the joy of having an inexhaustible supply of hot water. Most families tend to group activities together - showering, eating (dish washing) etc - the last thing you want is for the hot water to start running cold while you are using the bathroom... This can happen with a tank since it takes time to heat the water up when it enters the tank.
Not so with a gas propane tankless water heater, since it heats the water as it comes in. You do need to think about how many appliances you need to use at any one time since these instant water heater units are rated by the flow amount they can manage to heat up - more appliances running simultaneously means more flow, so buy appropriately.