Can a tankless water heater be used for a shower?

With a tankless water heater, you can take a shower, use the dishwasher, and do laundry all at the same time without losing hot water. On top of saving, you from the dreaded cold shower, it can also save you money and energy.

Can a tankless hot water heater fill a bathtub?

Yes, usually. A tankless water heater can provide hot water indefinitely, which means it will fill up the tub. However, you still need to consider how fast the heater can provide the temperature of water you want.

How many showers can a tankless water heater run?

To determine the tankless water heater size, you'll need to know how many appliances your family will use simultaneously. A tankless water heater that produces 4 GPM can supply one shower and one appliance operating simultaneously.

What size instant hot water heater do I need for a shower?

Average Temp.

For example, if you are running 2 showers at the same time, you will need 5 gallons of hot water per minute from the tankless water heater. If you were running a shower and the washing machine at the same time, you would need 4.5 gallons per minute from the water heater.

What is the downside of a tankless water heater?

The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters. Including installation, tankless water heaters cost 3 times more than tank-style water heaters on average.

3 Things They Don’t Tell You About Tankless

Can two people shower at same time with tankless water heater?

Even the largest whole-house tankless unit may not supply enough hot water for simultaneous, multiple uses. Such a unit may be able to supply only two showers simultaneously or perhaps one shower, a dishwasher and a sink. If the users demand too much water, the temperature will drop.

Can you run two showers at once with tankless water heater?

In other words, they can only supply so much hot water at a time. Depending on the flow rate of your water heater, you may be able to take a shower and use hot water at the kitchen sink at the same time, but you probably won't be able to run two showers and the kitchen sink.

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

Endless Supply of Hot Water

The tankless water heater is—you guessed it—tankless! Because there's no tank, it doesn't work off of capacity; it works off demand. A tankless water heater heats up water as you need it, and it brings hot water to your appliances quickly—and never runs out.

Can you use an electric water heater for a shower?

Another good reason for a water heater is if you only have cold mains water available. The internal electric heater will easily cope with heating water for shower and sink or a bath.

Can you use a tankless water heater with a walk-in tub?

We recommend either a heat-pump water heater or tankless water heater for your walk-in tub. Both options are more energy-efficient and seem to offer better advantages than other water heaters.

Do tankless water heaters have to be vented?

Tankless hot water heaters require special venting to blow hot exhaust gas outside, where it dissipates. Unlike traditional tank-style water heaters, gas tankless hot water heaters offer far more versatile venting options.

Can a tankless water heater be installed in a laundry room?

These models all deliver continuous hot water anytime it's needed, and they can be easily installed in small spaces that could not accommodate tank water heaters, like closets, laundry rooms and bathrooms.

Which is better hot water heater or tankless?

According to Energy.gov, “For homes that use 41 gallons or less of hot water daily, demand (or tankless) water heaters can be 24% to 34% more energy efficient than conventional storage tank water heaters.” Tankless water heaters (if gas-fired) will save homeowners over $100 annually the longer they remain in service.

Why is tankless water heater installation so expensive?

Tankless water heaters have a higher initial price compared to tank heaters, costing homeowners between $1,200–$3,500. The higher cost is a result of a more labor-intensive set-up, as new gas and water lines are required for installation. For electrical tankless heaters, new electric wiring will need to be installed.

How much value does a tankless water heater add to your home?

If you are looking to increase the value of your home, adding a tankless water heater to your features is a great place to start. According to a study conducted by Zillow, homes with tankless water heaters sold for 4% more than their expected value. On average, these homes also sold 43 days faster than expected.

Are electric tankless water heaters worth it?

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.

Why do I run out of hot water when taking a shower?

If your shower runs out of hot water quickly and frequently, your water heater might be too old. On average, a water heater can last between eight to 12 years. If yours is ten years old or more, it's time to replace your water heater.

What maintenance is needed on a tankless water heater?

The good news is that tankless water heaters don't require much maintenance, either. A tankless system should be serviced as a part of the regular preventive maintenance that heating and cooling systems receive. Electric or gas components should be inspected.

Are tankless water heaters worth it 2021?

Energy Efficient

The U.S. Department of Energy reports a tankless water heater is 24% to 34% more energy-efficient than storage tank water heaters—as long as you use around 41 gallons per day. However, even if you double that amount, they are still 8% to 14% more efficient.

Do electric tankless water heaters need a vent?

No. Unlike gas tankless water heaters and gas traditional tank style water heaters, electric tankless water heaters do not require any venting. This is often one of the deciding factors when choosing whether you should purchase a gas or electric tankless water heater.

Where should tankless water heaters be installed?

The ideal location for your water heater is inside the home. Most installations are small and unobtrusive so they will easily fit in a pantry, under the stairs, or under your sink. If you must place the water heater outside, make sure it's safe from direct sunlight, rain, and insects.

Does a tankless water heater need a dedicated circuit?

A tankless water heater will require a dedicated circuit as specified by the installation manual of the unit that has been selected. If you need additional space in the panel for the circuit breaker then a quad circuit breaker may be allowed as specified by the make and model of the panel.