When it comes to buying the thing that is going to provide you and your home hot water, it is important that you choose smartly from the dealers of tankless hot water heaters.
Tankless hot water heaters are expected to have a long life, say fifteen years or more. This compares very well with the life span of a tank - these do very well to survive beyond eight or ten years. Of course this life span depends on having a quality water heater, correctly installed and maintained. This is where the trustworthy, quality dealer comes in.
So what should you look for in a dealer of on demand water heaters? You would expect competitive prices of course, but this is far from the only thing. Odds are you could beat the price from the Internet or some other no-frills dealer, but you have to consider if the saving is worth it. It is often smarter to establish a good relationship with a good dealer.
Instead you should expect to see some expertise from the dealer staff. If you are thinking of buying a tankless gas water heater for example, one of the key issues is sizing. This wants to be done properly so you do not get an underpowered unit or end up paying a fortune for a powerful unit that you simply do not need. So expect a reasonably detailed interrogation about your specific needs.
The dealer should be able to help you compare tankless water heater models, styles and fuels. Given the importance of the decision, it seems a good idea to build a relationship with a dealer.