Introduction
Welcome to our guide on how to install an electric tankless water heater. As homeowners, we are always looking for ways to make our homes more energy-efficient and cost-effective. A tankless water heater is a great investment that provides hot water on demand, saves energy, and reduces utility bills. However, installing one can be daunting if you don’t know what you’re doing.
But don’t worry! Our step-by-step guide will walk you through the installation process, from selecting the right unit to testing the hot water flow. We’ll also discuss the advantages and disadvantages of tankless water heaters and answer some frequently-asked questions to help you make an informed decision.
So, let’s get started on your journey to having endless hot water without wasting energy and money.
How to Install Electric Tankless Water Heater
Step 1: Determine Placement and Electrical Requirements
The first step is to determine the appropriate location for your electric tankless water heater. The unit needs to be placed near the point of use to avoid heat loss in the pipes and reduce the time it takes for hot water to reach the faucet or shower.
You should also check the electrical requirements of your unit. A typical electric tankless water heater needs a 240-volt circuit breaker and at least 100 amps to operate. If you’re not sure, consult an electrician to assess your home’s electrical capacity.
Step 2: Turn Off Electricity and Water Supply
Before you start the installation process, make sure to turn off the electricity and water supply to the area where you’ll be working. This will prevent any accidental electrocution and water damage.
Step 3: Mount the Unit
Use the mounting template that came with your electric tankless water heater to position where you want to mount it. Afterward, secure it to the wall using screws and anchors. Add insulation to create a barrier between the unit and the wall to minimize heat loss and to improve the efficiency of the system.
Step 4: Connect the Water and Electrical Lines
Connect the hot and cold water supply lines to the unit. Ensure you use a dielectric union to separate the copper pipes and the stainless-steel unit. This precaution is necessary to prevent corrosion and damage to the unit. Once the water lines are connected, install the pressure relief valve and connect the T&P valve discharge line to the valve.
Next, connect the electrical lines to the unit according to the manufacturer’s instructions. Make sure to follow the electrical code and use the right-sized wires for the amperage and the breaker.
Step 5: Install the Temperature Controller and Remote
The temperature controller and the remote control are essential accessories of your electric tankless water heater. The temperature controller helps you regulate the temperature of the water, while the remote control allows you to turn the unit on and off from any location in your home. Follow the manufacturer’s instructions to install them correctly.
Step 6: Test the Hot Water Flow
Once you’ve completed the installation, open the hot water faucet to test the hot water flow. The water should flow continuously without fluctuating temperature. If the water is not hot enough, check your temperature controller and adjust it as necessary.
Step 7: Clean Up and Dispose of the Old Unit
After you’ve tested your new electric tankless water heater’s hot water flow, it’s time to clean up the installation area and dispose of the old unit. Make sure to follow your municipality’s guidelines for disposing of the old unit.
Advantages and Disadvantages of Electric Tankless Water Heaters
Advantages
There are several advantages of installing an electric tankless water heater in your home, including:
| Advantages | Explanation |
|---|---|
| Energy Efficiency and Cost Savings | Tankless water heaters only use electricity when hot water is required, which saves energy and reduces utility bills. |
| Compact Size | Electric tankless water heaters are smaller in size compared to traditional tank-style water heaters, which saves space. |
| Endless Hot Water Supply | A tankless water heater provides hot water on demand, which means you’ll never run out of hot water again. |
| Long Lifespan | Tankless water heaters last longer than traditional tank-style water heaters, which can last up to 20 years with proper maintenance. |
Disadvantages
As with any investment, there are downsides to electric tankless water heaters. Here are some of the disadvantages:
| Disadvantages | Explanation |
|---|---|
| High Initial Cost | Electric tankless water heaters are more expensive to purchase and install than traditional tank-style water heaters. |
| Low Flow Rates | Electric tankless water heaters have a limited hot water output, which can cause low flow rates, especially if several fixtures are in use simultaneously. |
| Requires Adequate Electrical Capacities | Electric tankless water heaters require a high electrical capacity, which can be challenging to achieve in older homes. |
FAQs
1. What size electric tankless water heater do I need?
The size of your electric tankless water heater depends on how many people live in your home and your water usage. A general rule of thumb is that you need 27-32 kW to supply hot water to a 2-3 bathroom house.
2. What is the life expectancy of an electric tankless water heater?
Electric tankless water heaters have a longer lifespan than traditional tank-style water heaters. With proper maintenance, your electric tankless water heater can last up to 20 years.
3. Do electric tankless water heaters require maintenance?
Yes, electric tankless water heaters require maintenance to prolong their lifespan. At least once a year, you should clean the unit’s inlet filter, descale the heat exchanger, and check the pressure relief valve.
4. How much does it cost to install an electric tankless water heater?
The cost of installing an electric tankless water heater varies depending on the unit’s size, brand, and complexity of the installation. A typical installation can range from $1,000 to $3,000.
5. Can an electric tankless water heater save me money on my utility bills?
Yes, an electric tankless water heater can save you money on your utility bills. Since it only operates when hot water is needed, it saves energy and reduces your utility bills.
6. Can an electric tankless water heater provide hot water to multiple fixtures simultaneously?
Yes, an electric tankless water heater can provide hot water to multiple fixtures simultaneously. However, the output may be limited, depending on the unit’s size and the number of fixtures in use.
7. Can I install an electric tankless water heater myself?
Installing an electric tankless water heater requires electrical and plumbing knowledge, and it’s best left to the professionals. However, if you’re confident in your DIY abilities, you can follow the manufacturer’s instructions and local building codes to install the unit.
8. How long does it take for an electric tankless water heater to heat up?
An electric tankless water heater heats up water instantaneously, so you’ll have hot water as soon as you turn on the faucet.
9. What is the best location to install an electric tankless water heater?
The best location to install an electric tankless water heater is near the point of use. This reduces heat loss through the pipes and provides hot water quickly.
10. Can I use an electric tankless water heater if I have hard water?
Yes, you can use an electric tankless water heater with hard water. However, you must check the unit’s manual to see if it’s compatible with hard water.
11. Can an electric tankless water heater be used for space heating?
No, an electric tankless water heater is designed to provide hot water, not space heating.
12. Can an electric tankless water heater be used in cold climates?
Yes, an electric tankless water heater can be used in cold climates. However, you’ll need a unit with a high flow rate and a lower ground temperature to prevent the unit from freezing.
13. Can I replace my tank-style water heater with an electric tankless water heater?
Yes, you can replace your tank-style water heater with an electric tankless water heater. However, you’ll need to consult a professional to ensure the unit’s compatibility with your home’s electrical and plumbing systems.
Conclusion
Installing an electric tankless water heater is an excellent investment that saves energy, reduces utility bills, and provides hot water on demand. By following our step-by-step guide, you can install a unit efficiently and correctly. The advantages and disadvantages we’ve outlined can help you decide if an electric tankless water heater is right for your home.
Don’t wait any longer to upgrade your hot water system. Take action today, and start enjoying endless hot water while saving money and energy.
Closing or Disclaimer
While we’ve provided a comprehensive guide on how to install an electric tankless water heater, it’s important to note that this guide is for informational purposes only. We recommend that you consult a professional electrician and plumber to assess your home’s electrical and plumbing needs and ensure that the installation process is done safely and correctly.
Additionally, we are not responsible for any damages or injuries that may occur from following this guide. Proceed at your own risk, and always prioritize safety.
