Are electric tankless water heaters worth it?

By Robert Flores / October 26, 2022

For many people, the long-term benefits of tankless heaters more than compensate for their initial expense. A tankless heater can be up to 34% more efficient than a traditional water heater. This increase in efficiency can amount to annual savings of over $100, depending on the type and size of the heater. Jun 10, 2022

Can you heat a hot tub with a tankless water heater?

Electric tankless water heaters can serve as an excellent source of additional heat for countless home appliances, and hot tubs are no exception. Jul 17, 2017

How can I heat my pool cheaply?

7 Cheap Ways to Heat Your Pool Use a Solar Cover. Invest in Solar Sun Rings. Try a Liquid Solar Pool Cover. Build a Windproof Pool Enclosure. Use the Black Hose Trick. Snag a Pool Heat Pump. Combine a Solar Cover and Pool Heat Pump. Sept 13, 2022

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Can I hook up a hose to my water heater?

A garden hose is a useful tool that can be connected directly to the hot water heater to drain the water and sediment inside.

Can my breaker panel handle a tankless water heater?

Do not use the same calculated amperage as your final size breaker for tankless water heater. Otherwise, you’ll risk accidents because there’ll be no protection for a power surge. The National Electric Code (NEC) states that a circuit breaker should only handle 80% or less of its total capacity. Oct 3, 2022

How many amps does it take to run a tankless water heater?

A tankless water heater requires 120 amps to run on average. If your home is older, you’ll likely need a professional electrician to upgrade your system and increase the amount of amperage available in your home. Oct 21, 2021

How long does it take to install a tankless water heater?

between one to three hours Afterward, the tankless unit must also be mounted and connected. Tankless to Tankless Installation: This generally takes between one to three hours.

Do tankless water heaters use 110 or 220?

Voltage. To reduce the amp draw, all electric tankless water heaters operate on a 240-volt circuit.

Why is my tankless water heater tripping the breaker?

Breaker Breaker There are three possible explanations for a breaker being tripped by a hot water heater: water dripping on the electrical lines, a problem with the unit’s thermostat or a problem with the breaker. A malfunctioning thermostat is the most common cause. In this case, the thermostat should be replaced. Dec 6, 2018

What size breaker do I need for a tankless water heater?

Electrical Requirements Model Recommended Breaker Recommended Household Electric Service ECO 11 1 x 60 Amps DP 125 Amps ECO 8 1 x 40 Amps DP 100 Amps POU 6 1 x 30 Amps 100 Amps POU 3.5 1 x 30 Amps 100 Amps 4 more rows

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Should I replace my hot water heater with a tankless?

Using a tankless water heater can reduce these costs by up to 50 percent, for an average annual savings of $80. They are durable and less likely to fail, causing potentially catastrophic flooding in your home. Tankless units have an average lifespan about twice that of conventional water heaters — 20 years or more.

How noisy is a tankless water heater?

Gas tankless hot water heaters all make noise when firing up and heating water, but the levels are usually less than 90 decibels.

How long does it take to recoup the cost of a tankless water heater?

Tankless water heaters can eventually pay for themselves with energy bill savings, but the payback period may be long: 22-27 years for a gas tankless heater, 12-20 years for an electric. Tankless water heaters tend to last longer than storage heaters: 20 to 25 years in many cases.

What is a normal gpm for a house?

For most single-family homes, a minimum flow of 6 GPM is suggested from a well or spring. This flow would provide 360 gallons of water each hour, which would be sufficient to meet most home water peak demands. Aug 26, 2022

How many gallons per minute does a toilet use?

2-3 gallons per minute A toilet will normally use about 2-3 gallons per minute (gpm), a shower from 1.5 to 3.0 gpm, a bathroom or kitchen faucet from 2-3 gpm, a dishwasher from 2-4 gpm, and a washing machine from 3-5 gpm. Aug 23, 2019

How much water does a 20 minute shower use?

If a standard showerhead is fitted, it will use around an extra half a gallon each minute, accounting for a 25-gallon emittance every 10 minutes, or 50 gallons throughout a 20-minute shower. Oct 20, 2020

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What is the most common problems with tankless water heaters?

Here are six of the most common problems and maintenance concerns for tankless water heaters: Mineral Buildup. System Overload. Cold Water Sandwich. Air Supply or Exhaust Blockage. Ignition Failure. Flame Failure. Mar 9, 2022

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

Although a tankless system can’t run out of hot water, it can still be overwhelmed with demand. A single tap won’t do this: run that single shower all you want, you’ll keep getting hot water. (But please don’t do this! Save water, save energy!) Sept 11, 2017

How do I size a tankless water heater for my house?

There are two factors that need to be considered when sizing a tankless water heater: Flow Rate (GPM): How much hot water you will need at any given time. Temperature Rise (ΔT): The difference between the incoming cold water temperature and the desired temperature.

What is the downside of a tankless water heater?

In addition to high upfront costs, tankless water heaters have several other disadvantages compared to tank-style water heaters: they take longer to deliver hot water. the water temperature is inconsistent when multiple outlets are on simultaneously. they cannot provide hot water during a power outage. Oct 16, 2022

Resources

https://www.homeserve.com/en-us/blog/buying-guide/tankless-water-heater/
https://www.ecosmartus.com/blog/spa-and-pool-water-heating/tackling-issues-with-hot-tub-heating.html
https://paylesspower.com/blog/seven-cheap-ways-to-heat-your-pool/
https://www.ehow.com/how_7627287_connect-garden-hose-water-heater.html

What Size Breaker for Electric Tankless Water Heater?


https://www.angi.com/articles/new-water-heater-requires-electrical-upgrade.htm
https://www.homedepot.com/c/ah/what-to-expect-during-water-heater-installation-appointment/9ba683603be9fa5395fab9042d83092

How Many Amps Does A Tankless Water Heater Use? (42-167 Amps)


https://homeguides.sfgate.com/problems-electric-hot-water-heater-trips-breaker-88385.html
https://www.ecosmartus.com/support/electrical-requirements
https://www.ahs.com/home-matters/repair-maintenance/installing-tankless-water-heater/
https://todayshomeowner.com/problem-with-noise-from-tankless-hot-water-heater/
https://www.ragsdaleair.com/help-guides/will-a-tankless-water-heater-save-me-money
https://extension.psu.edu/water-system-planning-estimating-water-needs

What is the water flow rate to most fixtures in my house?

How much water does a 20 minute shower use?


https://www.eccotemp.com/blog/6-common-tankless-water-heater-problems-and-how-to-solve-them/index.php
https://www.markcarpenterplumbing.com/blog/2017/september/will-a-tankless-water-heater-really-never-run-ou/
https://www.ecomfort.com/stories/1659-What-Size-Tankless-Water-Heater-Do-I-Need.html
https://prudentreviews.com/tankless-water-heaters-pros-and-cons/

About the author

Robert Flores