Electric Water Heater


Are Electric Tankless Water Heaters Worth It

Considering the potentials of endless hot water supply, lower energy bills, additional storage, and average savings of $44 a year, yes it is worth it.

What’s Inside An Electric Water Heater

Nothing much has changed in the design of water heaters during the last 60 years. It is constructed mostly with a steel tank, bond vitreous glass to prevent rusting, and equipped with sacrificial anode rods to protect the steel.

What Is Hybrid Electric Water Heater

It relies on a heat pump to pull heat from surrounding air and move it into the water heater. Resistance elements are used to produce more hot water.

What Is Electric Water Heater

These are designed to retain water in an insulated cylinder that is ready for use. It is capable of servicing multiple hot water outlets simultaneously.



Why Use Electric Water Heater

There are a couple of reasons why you should consider using electric water heaters, like:

  • Convenience
  • Cost effectiveness
  • No wastage of electricity
  • Water conservation
  • Virtually endless hot water available



How Does Electric Water Heater Work

Typically it is wired to a 220-volt circuit, where the current is passed through an electrical resistant heating element to heat the water. The two heating elements are powered by a thermostat to control water temperature.


Electric Water Heater Problems and Solutions

Electric Water Heater Upper Thermostat Keeps Tripping

When the upper thermostat regularly trips, the common cause is a bad heating element. Another possibility is when the metal casing of an element cracks and exposes live wires to the water in the tank resulting in a short circuit.

Electric Water Heater Is Leaking From Bottom

This is caused by a faulty drain valve, which must be replaced by a licensed plumber.

Electric Water Heater Is Making A Knocking Noise

The knocking noise is caused by the sediment trapped under the water at the bottom of the steel tank. As the water is heated, it boils and bubbles up, creating the knocking noise.

Electric Water Heater Is Not Heating Water

This problem may be traced to a broken dip tube, malfunctioning heating system, or sediment buildup inside the tank.

Why Electric Water Heater Keeps On Tripping

The most likely cause is overheating, especially when the temperature exceeds 180 degrees. Tripping occurs to protect you from scalding. The cause of the overheating can be traced to a bad thermostat.

Loose wiring, bad high-limit switch, and a shorted heating element can also cause tripping.

Why Electric Water Heater Not Working

There are various conditions that can qualify a water heater as not working. Most of the time the problem can be traced to the energy source. Another potential cause is not enough hot water produced, which can be caused by wrong temperature dial adjustment.


How To

How To Clean Electric Water Heater

In order to clean the water heater, you need to:

  1. Drain the tank.
  2. Remove the access panels to the heating elements.
  3. Remove the heating elements and disconnect electrical wires.
  4. Clean the removed element with vinegar solution.
  5. Reconnect the wires and refill the unit.
  6. Check for leaks and put back the insulation.
  7. Close the access panels
  8. Power on the unit.

How Drain Electric Water Heater

Follow these steps to drain the heating unit:

  1. Turn off the power.
  2. Turn off the water.
  3. Place a bucket under the drain or attach a garden hose and run it to a floor drain.
  4. Open the pressure relief valve.
  5. Drain the water from the tank.
  6. Close the valve.
  7. Turn back on the power and water supply.

How To Reset Electric Water Heater

The reset button is found behind the covers at the front of the unit. The high limit switch or ECO can be seen under the top cover mounted against the tank and directly above the upper thermostat. Press the button to reset the water heater.

How To Adjust Electric Water Heater

To adjust the two heating elements to the same temperature level, you have to locate the two covers at the front of the water heater. You may have to pull back the insulation to get to the covers. You will see a gauge with hash marks or letters. Twist the gauge to raise or lower the temperature of the unit.

How To Test Electric Water Heater Thermostat

A multimetes is used to test the thermostat of the water heater. You need to remove the upper and lower access panels of the unit to test if the thermostat is faulty.




When To Replace Electric Water

So how will you know if it is time to replace your heater? There are usually four indicators:

  1. The unit is already more than 10 years.
  2. Rusty water is coming from the unit.
  3. You hear a rumbling noise.
  4. There is water forming around the unit.

How Repair Electric Water Heater

Repairing water heaters can be quite tricky especially if you do not have the proper training for it. This is something best left to a licensed plumbing professional. However, what you could do in case something goes wrong with the unit is to reset it. If the reset does not solve the problem, then call a plumbing professional immediately.

How Install Electric Water Heater

The basic installation of an electric water heater follows these steps:

  1. Place the water heater on a drain pan.
  2. Twist in the new relieve valve.
  3. Install the discharge pipe and position it toward the floor drain.
  4. Place a plumber’s tape on the ends of the connector body threads.
  5. Secure the fitting to the hose.
  6. Slide compression nut and ring onto the pipe.
  7. Fill tank and open hot side.
  8. Connect the wirings.
  9. Test for leaks.



Is Electric Water Heater Using Too Much Electricity

A 50-gallon heater running for three hours a day has an electricity rate of about $0.16 kWh, which translates to $781 in operational costs every year.

Can Electric Water Heater Explode

Yes it is possible if the temperature is too high or the pressure relief valve malfunctions.

Do Electric Water Heaters Have Pilot Lights

In general it does not have a pilot light, but it may have bezels, which may be colored red or green.

Do Electric Water Heaters Need To Be Vented

These types of heaters are comparably easy to maintain that it needs no combusting or venting.

Can An Electric Water Heater Sit On The Floor

IF you have the newer Flammable Vapor Ignition Resistant (FVIR) units, you can technically allow it to sit on the floor.


WHERE can it be installed or placed

Electric Water Heater For Mobile Home

Find the nearest clean dry area nearest to the plumbing fixture to avoid long uninsulated lines that waste water and energy.

Electric Water Heater For Swimming Pool

It should be as close as possible to the outlet and the pool pump and filter.

Electric Water Heater For Outdoor Shower

The most practical way is to have it as close to the house as possible to limit the length of the underground pipe.

Electric Water Heater For Cabin

For a 20 gallon heater, it can be safely positioned above the shower.

Electric Water Heater In Garage

Most water heating units can be places on stands when installed in the garage.


COST for


On the average this is around $1,300 including removal and disposal of old materials, transport, and new material and installation.


This is anywhere from $120 – $200 depending on the damage.


A 50-gallon tank can run up to $1,000 not including required upgrades.



What’s The Best Electric Water Heater On The Market

Rheem is considered as one of the best in the market because it is reasonably priced and has a reputation for durability and reliability.

What Size Electric Water Heater Do I Need

The main consideration should be what you will need in the long term. The most common choices would be either a 40 gallon or 60 gallon unit.


Electric Water Heater Pros And Cons

The pros are:

  • Highly safe to use
  • Decreased cost of heating
  • Only needed amount of water is heated
  • Hot water is ready on demand
  • Endless hot water supply


The cons are:

  • May be expensive in the long-term
  • No hot water when there is no electricity
  • Longer recovery time

WHERE to find help

Electric water heaters can bring some definite advantages in your life, but only if it is properly installed, maintained, and repaired by an experienced plumbing expert.

So for all your plumbing issues, call Riverside Plumber today.


Additional Qs:

Water Heater Comparisons: What’s the difference? Which Is Better?

Electric Water Heater or Gas

This would depend on the cost of utility in your area. Typically, gas heaters are cheaper to operate, but has a higher upfront cost.

Electric Water Heater vs Hybrid

Hybrid pumps are technically more energy efficient so it helps you save more and increase your water heating benefits.

Electric Water Heater vs Tankless Water Heater

Demand water heaters can deliver up to 34% savings for users of 41 gallons or less. For homes that use more hot water, the energy efficiency can be up to 14%.

Electric Water Heater vs Boiler

If you want more than just hot water, then a boiler is your answer because it can use the steam for water heating, cooking, cleaning, and central heating.


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