For homeowners looking to save space and reduce energy costs, tankless water heaters have become an increasingly popular ...

For the average family of four, you can't go wrong with the Rinnai Condensing Tankless Water Heater. This natural gas model is our pick for the overall best tankless water heater because it can ...

Japan’s Rinnai has unveiled what it claims is the world’s first 100% hydrogen combustion technology for residential water heaters. It is currently using the hydrogen water heater in ...