How Does a Tankless Water Heater work?

A tankless water heater is an on-demand water heater. Unlike a standard tanked heater that houses up to 50 gallons of water and maintains that water at a constant temperature throughout the day, a tankless water heater sits idle, not consuming any energy until you turn on a faucet.

The moment a tankless system senses the water flow, it begins to heat the water and continues to heat it as long as you’re requesting hot water.

With a tankless system, once you have hot water at your sink, you can run it endlessly as you need it. A tankless system produces hot water until you turn off the tap.

Debunking the Instant Water Myth

Many in the plumbing industry have coined the phrase “instant water heater” to describe a tankless system. That leaves consumers with the perception that when they turn on their faucets, hot water instantly comes out.

While a tankless system does heat your water instantly, there is still a delay in getting the water from the tankless system to your faucet. That’s simply based off of the distance from your water heater to your faucet. If it takes 20 seconds to get water from your current tanked system, it’ll take 20 seconds to get water from your tankless system.

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