Often asked: What Size Tankless Water Heater For A Family Of 4?

What is a good size water heater for family of 4?

Household size plays a big role in determining the right water heater size. A home with two or fewer people can be served by a 23- to 36-gallon tank. A tank size of 36- to 46-gallons is best for homes of up to four people. A home with five people can be served by a 46- to 56-gallon tank.

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.

How many BTU tankless water heater do I need?

If you currently have a gas tank water heater (natural gas or propane), you can install a gas tankless water heater. However, you will probably have to upsize the gas line coming from your meter to your heater, as tankless units typically require a dedicated line to service their high demands of up to 200,000 BTU.

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What is the downside of a tankless water heater?

The primary disadvantage of on demand or instant hot water heaters is the upfront cost. The smaller units that you often see won’t produce enough hot water to serve most households. They’ll only serve one faucet at a time—a problem if you want to shower while the dishwasher is running.

Is it worth switching to a tankless water heater?

The big advantage of tankless water heaters is that they use less energy since they only heat up water when you need it. You can save hundreds on your energy bill each year. Because they don’t waste power, you can also enjoy the fact that your home will be more sustainable and eco-friendly.

Is 40 gallon water heater enough for a family of 4?

Typically, the rule-of-thumb is that you want a 40 gallon tank for 1 to 4 people, a 50 gallon tank for 4 to 6 people, and a 50 gallon high recovery or 75 gallon tank for 6 to 8 people. Energy consumption for 40 and 50 gallon standard water heaters is quite comparable.

Is a 50 gallon hot water heater enough for a family of 4?

It’s recommended you have 10-15 gallons of hot water per person in your household. For a family of four, a 50-gallon water heater should be sufficient. Look at the water heater’s capacity, the First Hour Rating (FHR), and your personal Peak Hour Demand calculation.

Can a tankless water heater fill a tub?

Please remember that tankless water heaters also come in different sizes, and you need to get a unit that will deliver a strong flow to the tub. A small tankless water heater can take a long time to fill a large tub. Whatever way you choose, at least now you’ll finally be able to relax in a nice, hot whirlpool tub.

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Can you have 2 tankless water heaters?

Installing two small tankless water heater units is typically more expensive than installing one large one, but it can ensure clients have hot water on demand for a variety of simultaneous uses. Most propane or natural gas tankless water heaters on the market can handle a rate of 5 gpm at a 70 degree temperature rise.

How long does a tankless water heater last?

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. In contrast, storage water heaters last 10–15 years.

Can a tankless water heater work for the whole house?

A whole-house tankless water heater is built to provide continuous hot water whenever you need it. Both tank and tankless whole-house water heaters have their advantages. Tank-type water heaters have a lower upfront cost and are often easier to install when replacing a similar type tank water heater.

Can I replace my hot water heater with a tankless?

Keep in mind, however, that most conventional gas tank water heaters were not installed with a tankless retrofit in mind. The higher the energy factor, the more efficient the water heater. For a household of one or two people, a tankless electric unit will probably be adequate.

Is 200 amp service enough for tankless water heater?

A: Electric Tankless water heaters usually require substantial and expensive upgrades in your system. This extra load requires at least 120 amps. The average home has a total capacity of 200 amps, which means an upgrade would be needed.

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