One of the great things about modern life is that we have information at our fingertips on just about any subject you care to name. But often information is only useful if we know how to interpret it - I'd say this applies to tankless water heaters reviews.
The trouble with the massive amount of information we can get is that it is easy to get overwhelmed by the stuff. One way to offset this is to make some decisions before looking at reviews - narrow the field down a bit.
For example, do you want a gas tankless water heater? You really do not need to read a review to establish this because you will be able to find something that meets your needs in the gas water heater market. The fundamental question is do I want gas?
Do you have an option to have natural gas piped into your home? In this case a natural gas tankless water heater might be a smart choice - no water storage, no fuel storage - the ultimate slick solution. Otherwise you might need to store propane bottles, or find a place for oil...
So before even looking at a review, you can decide the fuel. You may have already decided that you want to go with tankless electric water heaters - this makes the task of looking at reviews a whole lot easier.