Many people are realizing the advantages of tankless water heaters over conventional, tank-based heaters.
The most obvious advantage is that of energy efficiency.
Tankless heaters a much more efficient, since they only heat the water on demand, rather than heating and maintaining the temperature of a large tank of water.
Tankless heaters are also smaller and can be installed closer to the point of uses.
If you are thinking about replacing your home water heater, you would be well advised to consider going tankless.
There are two main types of heaters, electric and gas fired.
While the electric models tend to be more efficient than their gas counterparts, 95% vs 85%, this is offset in many places by the cheaper cost of natural gas or propane.
So you need to do the math for your location.
A gas system will probably cost less to buy, but you also need to take into account installation costs.
When installing a gas heater, you need to deal with such complications as venting the exhaust, some thing you don't need to do with an electric system.
As with any water heating system, you need to make sure you size the system to your needs, that is how much hot water do you need.
There are lots of choices of manufacturers for tankless gas water heaters.
You should look around online for reviews to see which have the best reputation for quality.
Some of the top names in the business are Aquastar, Navien, Noritz, Polonis and Bosch.
Start searching for those names and take it from there.