Our trained, professional technicians provide expert service, repair and installation of tankless water heaters. By the time the water exits the heater, it has reached the designated set temperature. A traditional tank heater puts out 7.5 to 9.5 gallons of water per minute (gpm), enough to shower, run the dishwasher, and do a load of laundry all at the same time. Most tankless water heater manufacturers recommend that a filtration system be installed to filter the water before it enters the unit.

The data in the chart below from compares the energy and cost savings on the various types of water heaters. As a result, tankless water heaters deliver a constant supply of hot water. A traditional water heater works by keeping water in the tank at a constant temperature. In addition, while a conventional water heater typically uses a half-inch gas line, a tankless water heater requires three-quarter-inch pipe.

It makes a lot of 2 x tankless navien 240 water heaters to go for this type of heater if your home has an uninterrupted natural gas connection. If you have a large household or use two hot water showers simultaneously, the 4gpm flowrate provided by this heater isn't enough. A lot more goes into making the decision to replace your bulky water heater with a slim tankless model than a simple yes or no. Even though it can pay itself quickly, a tankless water heater may not be best for you.

Although tankless water heaters heat water on demand, they do have output limits on their flow rate. Rewiring your house can easily add as much as $5,000 to the cost of installing a tankless water heater. If the job requires the work of an electrician or a contractor, the costs increase to accommodate that work. Environmental impact: an electric tankless water heater produces no greenhouse gases and will be easier to dispose of at the end of its life cycle.

Energy star measures gpm based on a 77-degree increase in water temperature needed to heat water, while some companies list their gpm flows at 35- and 45-degree rises. Permits: some municipalities require a permit to install a tankless water heater. Tankless water heaters are designed to allow you to operate multiple plumbing fixtures throughout your home at the same time with no shortage of hot water.