To achieve savings, the first step is to calculate flow rate and temperature rise to properly customize your tankless system for maximum savings.
How tankless water heaters work Tankless water heaters achieve significant energy savings by heating water instantaneously. Heating water as it’s needed at a water outlet with an electric or gas-powered heating element eliminates stand-by heat loss (reheating stored water after it cools) commonly identified with storage-tank water heaters. Because of instantaneous water heating, tankless water heaters ensure a ready and endless supply of hot water. Customize for savings and ample hot water You will save the most energy, and you can meet the hot-water needs of your household, by accurately calculating flow rates and temperature rise.
Another key factor is location. The closer that a tankless unit is located to a hot-water outlet, the less heat energy the water will lose through the plumbing pipes. So locating a tankless device as close to the application as possible, and using several units throughout your home, is key to ensuring water-heating savings. With flow rates and temperature rise correctly calculated, you can best design your network of tankless units, whether it’s a small unit beneath a bathroom sink or a whole-house unit to heat water for multiple applications like a dishwasher and washing machine. Work with your water-heating professional for best results.