LONDONDERRY, N.H. — Bosch Thermotechnology’s Aveiro plant in Portugal has passed the 20 million mark in production of gas-fired water heaters. Vulcano brand gas water heaters are a leading tankless ...

A tankless water heater looks to be nothing more than a simple gray box that hangs on the wall. Yet inside that box is some pretty remarkable engineering, because when you open a hot-water faucet, it ...

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 heat ...

Compared with other “green” purchases, the stakes get a little higher when you buy a tankless water heater. We all rely on hot water. We want it to be there when we need it. Only a small number of ...