The most common question is "which tankless water heater" is the best. For our experience and speaking with customers and installers. The following is a list of best to worst rated tankless water heaters. We conducted an unbiased review of the popularity as well as the consumer and expert reviews so that you can find the right tankless water heater. Some of the top brands we reviewed are: Bosch, Rinnai, and Noritz and all the brands on our list make good quality tankless water heaters.
| Rank | Manufacture | Model | Price |
| 1 | R75 LSi | $760 | |
| 2 | N0751M-DVC-NG | $1100 | |
| 3 | 2700ES | $1020 | |
| 4 | Flash T-K3-SP | $900 | |
| 5 | PH-28RIFS | $949 | |
| 6 | |||
| 7 | |||
| 8 | |||
| 9 |
Rinnai R75 LSi
Sam Kingston
4.5
1st September 2009
Best Tankless water heater on the market