Tankless water heaters are becoming increasingly popular due to their energy efficiency and space-saving design. However, tankless water heaters are more susceptible to scale buildup than traditional storage tank water heaters, especially if you have hard water. A water softener can help to prevent scale buildup and extend the lifespan of your tankless water heater.
This article will discuss the benefits of using a water softener with a tankless water heater, the different types of water softeners available, and how to choose the right water softener for your needs. We will also provide instructions on how to install and maintain a water softener.
What is a tankless water heater?
A tankless water heater, also known as an on-demand water heater, is a type of water heater that heats water directly without the need for a storage tank. When you turn on a hot water tap, a sensor detects the flow of water and activates the heating element. The heating element heats the water as it passes through the unit, so you have hot water on demand.
How does a tankless water heater work?
Tankless water heaters use a variety of different technologies to heat water, but the basic principle is the same: a heating element heats the water as it passes through the unit. The heating element can be powered by electricity, gas, or propane.
When you turn on a hot water tap, a sensor detects the flow of water and activates the heating element. The heating element heats the water to the desired temperature, which is typically set between 120 and 140 degrees Fahrenheit. The hot water then flows through the pipes to your faucet or shower.
What are the benefits of a tankless water heater?
Tankless water heaters have a number of benefits over traditional storage tank water heaters, including:
- Energy efficiency: Tankless water heaters are more energy-efficient than storage tank water heaters because they only heat water when you need it. This can save you a significant amount of money on your energy bills.
- Endless hot water: Tankless water heaters can provide endless hot water, so you never have to worry about running out. This is ideal for large families or households with multiple showers.
- Space savings: Tankless water heaters are much smaller than storage tank water heaters, so they take up less space in your home.
- Longer lifespan: Tankless water heaters have a longer lifespan than storage tank water heaters, typically lasting 10-15 years compared to 5-10 years for a storage tank water heater.
H3: What are the drawbacks of a tankless water heater?
The main drawback of tankless water heaters is their initial cost. Tankless water heaters are typically more expensive than storage tank water heaters. However, the energy savings over time can offset the higher upfront cost.
Another potential drawback of tankless water heaters is that they may not be able to provide enough hot water for multiple simultaneous uses. For example, if you are running the dishwasher and taking a shower at the same time, you may not have enough hot water for both. However, this can be mitigated by choosing a tankless water heater with a high flow rate.
What is a water softener?
A water softener is a device that removes hardness minerals, such as calcium and magnesium, from water. Hard water can cause a number of problems, including:
- Scale buildup in pipes and appliances, which can reduce water flow and efficiency
- Soap scum on dishes and in showers
- Dry, itchy skin and hair
- Dull laundry
- Increased water consumption
A water softener works by using a process called ion exchange. Ion exchange is a chemical process that replaces hard water minerals with sodium ions. The sodium ions are harmless and do not affect the taste or smell of the water.
How does a water softener work?
A water softener typically has two tanks: a resin tank and a brine tank. The resin tank contains resin beads, which are coated with sodium ions. The brine tank contains a salt solution.
When hard water flows through the resin tank, the calcium and magnesium ions attach to the resin beads, while the sodium ions are released into the water. The softened water then flows out of the resin tank and into your home.
Over time, the resin beads become saturated with calcium and magnesium ions. When this happens, the brine tank is used to regenerate the resin beads. The salt solution in the brine tank flows through the resin tank, removing the calcium and magnesium ions and replacing them with sodium ions.
What are the benefits of a water softener?
There are a number of benefits to using a water softener, including:
- Reduced scale buildup: Water softeners prevent scale buildup in pipes and appliances, which can improve water flow and efficiency and extend the lifespan of your appliances.
- Softer skin and hair: Soft water can help to reduce dry, itchy skin and hair.
- Cleaner dishes and laundry: Soft water helps to remove soap scum from dishes and laundry, leaving them cleaner and brighter.
- Reduced water consumption: Soft water can help you to reduce your water consumption by making it easier to clean dishes and laundry and by reducing the amount of soap and detergent you need to use.
What are the drawbacks of a water softener?
The main drawback of water softeners is their cost. Water softeners can be expensive to purchase and install. Additionally, water softeners require regular maintenance, such as adding salt to the brine tank.
Another potential drawback of water softeners is that they can increase the sodium content of your water. This is not a concern for most people, but it is something to be aware of if you are on a sodium-restricted diet.
Why use a water softener with a tankless water heater?
What are the benefits of using a water softener with a tankless water heater?
There are a number of benefits to using a water softener with a tankless water heater, including:
- Reduced scale buildup: Tankless water heaters are more susceptible to scale buildup than storage tank water heaters because they heat water directly. Scale buildup can reduce the flow rate and efficiency of a tankless water heater, and it can also lead to premature failure. Using a water softener can help to prevent scale buildup and extend the lifespan of your tankless water heater.
- Improved performance: Soft water can help to improve the performance of your tankless water heater. Soft water heats up faster than hard water, so you can get hot water sooner. Soft water also helps to prevent the heating element from getting clogged with minerals, which can improve the overall efficiency of your tankless water heater.
- Longer lifespan: Tankless water heaters that are used with soft water typically have a longer lifespan than those that are used with hard water. This is because soft water is less likely to cause scale buildup and other problems that can damage the unit.
What are the drawbacks of not using a water softener with a tankless water heater?
The main drawback of not using a water softener with a tankless water heater is the increased risk of scale buildup. Scale buildup can reduce the flow rate and efficiency of your tankless water heater, and it can also lead to premature failure. Additionally, scale buildup can make it more difficult to clean and maintain your tankless water heater.
Another potential drawback of not using a water softener with a tankless water heater is that hard water can reduce the performance of the unit. Hard water takes longer to heat up than soft water, so you may have to wait longer for hot water. Hard water can also clog the heating element, which can reduce the overall efficiency of your tankless water heater.
Overall, it is recommended to use a water softener with a tankless water heater to extend the lifespan of the unit, improve its performance, and reduce the risk of problems caused by scale buildup.
Additional information:
If you do not use a water softener with your tankless water heater, it is important to have the unit professionally cleaned and descaled on a regular basis. This will help to remove any scale buildup that has formed and prevent it from causing problems with your tankless water heater.
What are the different types of water softeners?
There are two main types of water softeners: ion exchange water softeners and salt-free water softeners.
Ion exchange water softeners are the most common type of water softener. They work by using a process called ion exchange to remove hardness minerals from water. Ion exchange water softeners are typically more expensive than salt-free water softeners, but they are also more effective at removing hardness minerals.
Salt-free water softeners do not use salt to remove hardness minerals from water. Instead, they use a variety of different technologies, such as electromagnetic fields, template-assisted crystallization, and catalytic media. Salt-free water softeners are typically less expensive than ion exchange water softeners, but they are also less effective at removing hardness minerals.
Which type of water softener is right for me?
The best type of water softener for you will depend on your individual needs and preferences. If you have hard water and need to remove a significant amount of hardness minerals, then an ion exchange water softener is the best option. If you have soft water or have concerns about the environmental impact of salt-based water softeners, then a salt-free water softener may be a better option.
How to choose the right water softener for your tankless water heater
When choosing a water softener for your tankless water heater, there are a few factors you need to consider:
- Type of water: What type of water do you have? If you have hard water, you will need a water softener that is designed to remove hardness minerals.
- Flow rate: What is the flow rate of your tankless water heater? The water softener you choose must have a flow rate that is equal to or greater than the flow rate of your tankless water heater.
- Grain capacity: The grain capacity of a water softener is a measure of how much hardness minerals it can remove before it needs to be regenerated. The grain capacity you need will depend on the hardness of your water and the number of people in your household.
- Budget: Water softeners can range in price from a few hundred dollars to several thousand dollars. It is important to set a budget before you start shopping so that you can find a water softener that fits your needs and your wallet.
What factors to consider when choosing a water softener
In addition to the factors listed above, there are a few other things you should consider when choosing a water softener:
- Maintenance requirements: Some water softeners require more maintenance than others. Be sure to choose a water softener that you are comfortable maintaining.
- Warranty: Water softeners typically come with a warranty. Be sure to choose a water softener with a warranty that covers the parts and labor for a period of time that is satisfactory to you.
- Reputation of the manufacturer: It is important to choose a water softener from a reputable manufacturer. This will help to ensure that you are getting a high-quality product that is backed by a good warranty.
How to calculate the right size water softener for your needs
To calculate the right size water softener for your needs, you will need to know the hardness of your water and the number of people in your household. You can find your water hardness level by contacting your local water utility company.
Once you know your water hardness level and the number of people in your household, you can use the following formula to calculate the right size water softener:
Grain capacity = (Water hardness level in grains per gallon) * (Water usage in gallons per day) * (Number of people in household) * (Safety factor of 1.5)
The safety factor of 1.5 is used to ensure that you have a water softener that is large enough to meet your needs, even if your water usage increases in the future.
Once you have calculated the grain capacity you need, you can start shopping for water softeners. Be sure to choose a water softener with a grain capacity that is equal to or greater than the grain capacity you need.
How to install a water softener
What tools and materials you will need
To install a water softener, you will need the following tools and materials:
- Water softener
- Shut-off valves
- Pipe adapters
- Pipe cutters
- Teflon tape
- Plumber’s putty
- Drill
- Wrench
- Screwdriver
Step-by-step instructions on how to install a water softener
- Choose a location for the water softener. The water softener should be installed in a location where it is accessible for maintenance and repair. It should also be installed in a location where it is protected from the elements.
- Turn off the water supply to your home. You can do this by closing the main water valve.
- Cut the main water line. Use a pipe cutter to cut the main water line at the point where you want to install the water softener.
- Install the shut-off valves. Install a shut-off valve on each side of the water softener. This will allow you to isolate the water softener for maintenance and repair.
- Connect the water softener to the shut-off valves. Use pipe adapters to connect the water softener to the shut-off valves. Make sure to use Teflon tape on all of the connections to prevent leaks.
- Connect the drain line to the water softener. The drain line will carry away the wastewater from the water softener regeneration process. Connect the drain line to the water softener according to the manufacturer’s instructions.
- Turn on the water supply to your home. Open the main water valve and allow the water to flow through the water softener.
- Program the water softener. Most water softeners have a digital programmer that allows you to set the water hardness level and the regeneration frequency. Follow the manufacturer’s instructions to program the water softener.
- Test the water softener. Once the water softener is programmed, run the water through all of your faucets to make sure that it is working properly.
How to maintain a water softener
Routine maintenance tasks
The following are some routine maintenance tasks that you should perform on your water softener:
- Check the salt level in the brine tank. Add salt to the brine tank as needed to ensure that the water softener has enough salt to regenerate properly.
- Clean the resin tank. The resin tank should be cleaned every 6-12 months. To clean the resin tank, mix one part vinegar with two parts water and pour it into the resin tank. Let the vinegar solution sit in the resin tank for 30 minutes, then drain it and rinse the resin tank with clean water.
- Sanitize the water softener. The water softener should be sanitized every year. To sanitize the water softener, mix one part bleach with ten parts water and pour it into the resin tank. Let the bleach solution sit in the resin tank for 30 minutes, then drain it and rinse the resin tank with clean water.
Troubleshooting common problems
The following are some common problems that can occur with water softeners and their solutions:
- Water softener is not producing soft water. Check the salt level in the brine tank and the programming of the water softener. If the salt level is too low or the water softener is not programmed correctly, it will not produce soft water.
- Water softener is leaking. Check the connections on the water softener for leaks. If you find a leak, tighten the connection.
- Water softener is making noise. Water softeners can make noise during the regeneration process. This is normal. However, if the water softener is making excessive noise, it may be a sign of a problem. Contact a qualified plumber to diagnose and repair the problem.
If you have any problems with your water softener, please contact a qualified plumber for assistance.
FAQs about tankless water heater water softeners
Do I need a water softener with a tankless water heater?
You do not need a water softener with a tankless water heater, but it is recommended. Hard water can cause scale buildup in tankless water heaters, which can reduce their efficiency and lifespan. A water softener can help to prevent scale buildup and extend the lifespan of your tankless water heater.
What are the best water softeners for tankless water heaters?
The best water softeners for tankless water heaters are ion exchange water softeners. Ion exchange water softeners are the most effective at removing hardness minerals from water. However, it is important to choose an ion exchange water softener that is compatible with your tankless water heater.
Some of the best water softeners for tankless water heaters include:
- Kinetico K5
- Fleck 5600SXT
- Culligan HE Series
- GE SmartWater Softener
How much does it cost to install a water softener?
The cost to install a water softener varies depending on the size and type of water softener, as well as the complexity of the installation. A basic water softener installation can cost around $500, while a more complex installation can cost upwards of $1,500.
How long does a water softener last?
A water softener typically lasts for 10-15 years. However, the lifespan of a water softener can be affected by the quality of the water, the amount of use, and the maintenance schedule.
Final Thoughts
Using a water softener with a tankless water heater is a great way to protect your investment and extend the lifespan of your unit. Soft water can help to reduce scale buildup, improve performance, and extend the lifespan of your tankless water heater.
Here are some key takeaways from this article:
- Tankless water heaters are more susceptible to scale buildup than traditional storage tank water heaters, especially if you have hard water.
- A water softener can help to prevent scale buildup and extend the lifespan of your tankless water heater.
- There are two main types of water softeners: ion exchange water softeners and salt-free water softeners.
- Ion exchange water softeners are the most effective at removing hardness minerals from water, but they require salt to regenerate.
- Salt-free water softeners do not require salt, but they are less effective at removing hardness minerals from water.
- When choosing a water softener for your tankless water heater, it is important to choose a model that is compatible with your unit.
- You can install a water softener yourself, but it is recommended to have a qualified plumber perform the installation.
If you have a tankless water heater and you are concerned about scale buildup, consider installing a water softener to protect your investment and enjoy the benefits of soft water.
Related Articles: