What is a Tankless Water Heater?
Also called Instantaneous or Demand Water Heaters, Tankless heaters provide hot water only as it is needed. Traditional storage water heaters produce
standby energy losses that cost you money. We do not leave our homes heated while vacationing. We only heat our homes when there is a demand for heat.
In the same way, a Tankless Water Heater is used only when there is a demand for hot water.
How do Tankless Water Heaters work?
Tankless hot water heaters heat water directly without the use of a storage tank. Therefore, they avoid the standby heat losses associated with storage water
heaters. When a hot water tap is turned on, cold water travels through a pipe into the unit. In an electric Tankless Water Heater an electric element heats the
water. In a gas-fired Tankless Water Heater a gas burner heats the water. As a result, Tankless Water Heaters deliver a constant supply of hot water. You don’t
need to wait for a storage tank to fill up with enough hot water. Typically, Tankless Water Heaters provide hot water at a rate of 2 – 5 gallons (7.6 – 15.2 liters)
per minute. Some smaller Tankless Water Heaters, however, cannot supply enough hot water for simultaneous, multiple uses in large households. For example,
taking a shower and running the dishwasher at the same time can stretch a Tankless Water Heater to its limit. To overcome this problem, you can install
a “whole house” type Tankless Water Heater or install two or more Tankless Water Heaters, connected in parallel for simultaneous demands of hot water. You
can also install separate Tankless Water Heaters for appliances—such as a clothes washer or dishwater—that use a lot of hot water in your home.
What are the Electrical Requirements for Electric Tankless Water Heaters?
If you plan to purchase an Electric Tankless Water Heater, consider the Voltage, Amperage, and Circuit Breaker. Voltage - We make units that will accommodate 110V, 120V, 208V, 220V, 240V, and 277V. Amperage - Different Electric Tankless Water Heaters will have various requirements in amp draw. You will want to ensure that you can support the electrical
demands of your Electric Tankless Water Heater. Circuit Breaker - You must ensure that you have a circuit or circuits that will support your Electric Tankless
Water Heater. It may be necessary to put your Electric Tankless Water Heater on its own circuit or circuits.
For residential applications, check out our
Rise Chart for Gallons per Minute (GPM) needed and our Wire
and Breaker Chart. For Commercial Applications, check out our Recovery
Chart and our Engineering
Chart. You should consult with a qualified, licensed electrician for more information.
Will an Electric Tankless Water Heater Save me Money and Energy?
For homes that use 41 gallons or less of hot water daily, Tankless Water Heaters can be 24% – 34% more energy efficient than conventional storage tank
water heaters. They can be 8% – 14% more energy efficient for homes that use a lot of hot water, around 86 gallons per day. You can achieve an even greater
energy savings of 27% – 50% if you install a Tankless Water Heater at each hot water outlet.
How many years can I expect out of my Tankless Water Heater?
Many Tankless Water Heaters have a life expectancy of more than 20 years. They also have easily replaceable parts that extend their life by many more years.
In contrast, storage water heaters last 10 – 15 years. You should consult the our website for detailed warranty information. Periodic water heater maintenance
can significantly extend your water heater’s life and minimize loss of efficiency.
Why should I buy an electric Tankless Water Heater instead of
a gas-operated one?
Gas water heaters are good under the right circumstances, but many times have to be gas vented which requires gas venting accessories.