Often asked: How Big A Tankless Water Heater For Family Of 5?


What size tankless water heater is needed for family of 4?

Sizing Guide for Residential Tankless Water heater
Household Occupants Usage Capacity Required (Measured in Gallon)
2-3 people High 40-50
3- 4 people Regular/Low 40
High 50-75

Is a tankless water heater good for a large family?

On average, tankless water heaters can provide 2 to 5 gallons of hot water per minute. For those with large families who go through a lot of hot water, installing more than one tankless water heater is common. This will ensure there is always enough hot water available for showers, laundry and the dishwasher.

How many tankless heaters do I need?

For larger households that typically use more than 85 gallons per day, two tankless systems, or the largest available model, are likely needed. For smaller households that use under 40 gallons per day, one unit should suffice.

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Can tankless water heater be too big?

Tankless water heaters provide endless hot water on demand. However, tankless water heaters are limited by how much water they can heat at any given time. Choose too small of a system and it won’t have the capacity to provide enough hot water to meet your household needs. Go too big and you will overpay.

What is the downside of a tankless water heater?

Tankless water heaters produce an endless supply of hot water, take up less space, have a lower risk of leaking, are safer, and have a significantly longer lifespan on average. The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters.

Can a tankless water heater fill a tub?

A small tankless water heater can take a long time to fill a large tub. Two smaller water heaters can do the job of one big water heater.

Can a tankless water heater work for the whole house?

Built with scale-reduction technology, both electric tankless and gas tankless whole – house water heaters perform with high efficiency and are built to serve a wide range of applications. A whole – house tankless water heater is built to provide continuous hot water whenever you need it.

Can you run out of hot water with a tankless water heater?

Endless Supply of Hot Water A tankless water heater heats up water as you need it, and it brings hot water to your appliances quickly—and never runs out.

What is the lifespan of a tankless water heater?

Most 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.

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Can you have 2 tankless water heaters?

It is possible to connect two tankless heaters to run parallel to each other, providing a larger amount of hot water on-demand. You could also get a larger tankless unit that can provide a higher flow rate.

Are electric tankless water heaters worth it?

Both rate Good for energy efficiency. Tankless: Gas and electric tankless water heaters run more efficiently than the conventional water heaters of the same fuel type. We rated the annual energy consumption cost Excellent for a gas model but only Fair for an electric, but both rate Very Good for energy efficiency.

Do you need a tankless water heater for each bathroom?

Tankless water heaters can be installed anywhere inside your home. You can even have a tankless water heater in a bathroom! Some families with larger homes choose to install two, one for each floor, for example. Because of their small size, they fit in closets, cabinets, pantries or laundry rooms.

What is the best temperature for a tankless water heater?

You’ll want to shoot for 100-115 degrees Fahrenheit for your water to be heated. If your groundwater temperature is 60 degrees and you want your shower at 110 degrees, that’s going to be a 50-degree rise.

What size BTU tankless water heater do I need?

If you need to provide a whole house with hot water and your peak water demand is high, then you’ll need up to 200,000 BTU. If you only need a couple of low flow fixtures at once, then you can go with lower BTU since it will consume less.

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What is the best electric tankless water heater?

The 10 Best Electric Tankless Water Heaters

  • Stiebel Eltron Tempra 12 Plus Tankless Water Heater – Best Overall.
  • Titan SCR2 N-120 Electric Tankless Water Heater – Best Value.
  • Sio Green SIO18 Electric Tankless Water Heater – Premium Choice.
  • Ecosmart ECO 18 Electric Tankless Water Heater.

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