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How does a tankless water heater work?

 Posted Monday, July 10, 2017.

Hot water heaters are a necessity anywhere in the country, especially for those who live in Massachusetts. There's nothing better than stepping into a hot shower on a cold day. For some, a standard hot water heater get the job done -- however, there are other options available for homeowners.

One such option is a tankless hot water heating system. Traditional hot water heaters contain a large tank in which is stored hot water that's ready to use at any given moment. The tank is constantly keeping the hot water at a certain temperature, which can often mean increased utility bills because it takes more energy to continually heat water; this is called "standby heat loss."

Tankless systems, on the other hand, only heat water when you need it. This "on-demand" heating system is more efficient because it only heats the water you know you're going to use in the present moment. Keep in mind that deciding on what type of tankless hot water heater you need depends on a couple things.

  1. The flow rate, or the amount of water you need heated at a given time.
  2. The temperature rise, which is the difference in temperature between groundwater and desired hot water temperature

 The federal government limits flow rate to 2.2 gallons of water per minute for tankless water heaters in residential homes, but there are many benefits to switching to tankless water heaters. First, they last on average of 10 years longer than traditional water heaters; they can save homeoners an overage of 20% on their hot water bill, and lastly there's no possibility of a flood due to a ruptured tank.

If you're ready to make the switch to a tankless hot water heater, contact our Chelmsford plumber today to schedule an appointment. Our experts can install, repair and service tankless hot water heaters and traditional hot water heaters.

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