Back to blogs

Switching from Tank to Tankless Water Heater: A Guide

Are you considering switching from a traditional tank water heater to a tankless water heater? We've got you covered! In this comprehensive guide, we will walk you through the benefits of making this energy-efficient upgrade and provide step-by-step instructions on how to convert to a tankless water heater. Say goodbye to running out of hot water and hello to lower energy costs!

Key Takeaways:

  • Switching to a tankless water heater offers several advantages, including never running out of hot water, lower energy costs, and less maintenance.
  • Consider the timing of the switch. If your current tank water heater is still in good condition, you may not need to upgrade. However, if it's nearing the end of its lifespan or causing issues, it may be the right time to switch.
  • Factors to consider in tankless water heater conversion include the size of the unit needed, installation requirements, and code compliance.
  • Seek professional assistance for a safe and effective conversion process.
  • During installation, ensure proper mounting, upgrade the gas line if necessary, remove the old water heater, install new water and gas lines, and properly vent the tankless unit.

Benefits of Tankless Water Heaters

Tankless water heaters offer numerous advantages over traditional tank water heaters, making them an excellent choice for homeowners looking to upgrade their water heating system. Here are some key benefits of installing a tankless water heater:

  1. Never run out of hot water: Unlike tank water heaters that store and heat a finite amount of water, tankless water heaters heat water on-demand. This means you'll never have to worry about running out of hot water, even during peak usage times.
  2. Lower energy costs: Tankless water heaters are highly energy-efficient. They only heat water when needed, eliminating standby heat loss that occurs with tank water heaters. This can result in significant energy savings and lower utility bills over time.
  3. Smaller footprint: Tankless water heaters are much more compact than traditional tank water heaters. They can be mounted on the wall, saving valuable floor space in your utility room or basement.
  4. Less maintenance: Tankless water heaters require less maintenance compared to tank water heaters. They have fewer components that can wear out or malfunction, reducing the need for regular upkeep and potential repair costs.
  5. Easy temperature adjustment: Tankless water heaters usually come with digital controls that allow for precise temperature adjustment. This gives you greater control over your water temperature preferences and eliminates the need for complicated manual adjustments.
  6. No pilot lights: Unlike tank water heaters that often use a pilot light to ignite the burner, tankless water heaters don't have a continuous flame. This not only saves energy but also eliminates the risk of accidental gas leaks or ignition.

The benefits of tankless water heaters extend beyond the ones mentioned above. They offer long-term cost savings, improved comfort, and greater convenience for homeowners. The next section will discuss why switching to a tankless water heater is a wise investment in the long run.

The Advantages of Tankless Water Heaters

Advantages Tank Water Heaters Tankless Water Heaters Endless hot water No Yes Energy-efficient No Yes Space-saving No Yes Low maintenance No Yes Temperature control No Yes No pilot lights No Yes

Why Switch to a Tankless Water Heater

Switching to a tankless water heater offers numerous benefits, including significant cost savings. Unlike traditional tank water heaters that constantly heat water, tankless water heaters only heat water on-demand. This efficient heating method reduces energy consumption and lowers monthly water heating costs, resulting in long-term savings.

Another advantage of tankless water heaters is their compact size. These units take up less space compared to bulky tank water heaters, making them ideal for small homes or apartments where space is limited. Additionally, tankless water heaters eliminate the need for a large storage tank, which can deteriorate over time and cause leaks or other maintenance issues. With a tankless unit, you can enjoy hot water without the worry of tank failure.

One of the most notable benefits of switching to a tankless water heater is the never-ending supply of hot water. Traditional tank water heaters have a limited capacity and can run out of hot water during peak usage times. With a tankless unit, hot water is available on-demand, ensuring you never have to take a cold shower or wait for the water to heat up for daily tasks like washing dishes or doing laundry.

"Switching to a tankless water heater not only provides immediate benefits such as energy savings and never running out of hot water, but it also ensures long-term cost savings and a more efficient home."

Traditional Tank Water Heater Tankless Water Heater Constantly heats water, leading to energy waste Heats water on-demand, reducing energy consumption Large storage tank takes up space Compact size, ideal for small homes or apartments Can run out of hot water during peak usage Never-ending supply of hot water

Overall, switching to a tankless water heater offers a range of benefits, from energy savings to never running out of hot water. By making this upgrade, homeowners can enjoy a more efficient and cost-effective water heating system that meets their household's needs.

When to Consider Switching to a Tankless Water Heater

Deciding when to switch from a tank water heater to a tankless water heater is an important consideration. While the benefits of a tankless system are clear, there are certain factors to take into account before making the switch. One key factor is the condition of your current tank water heater. If it is still functioning well and has a significant amount of life left, it may not be necessary to upgrade just yet. However, if your tank water heater is nearing the end of its lifespan or is causing issues such as leaks or inconsistent hot water, it could be the right time to consider a tankless option.

Another factor to consider is the cost of installation. While tankless water heaters can provide long-term savings, the upfront cost of installation can be higher compared to traditional tank water heaters. It's important to weigh the initial investment against the potential long-term energy savings and other benefits. Additionally, you may need to consider any modifications or upgrades required to accommodate a tankless system, such as increasing the size of the gas line or adjusting the electrical system. These factors can impact the overall cost of installation and should be taken into consideration.

Furthermore, it's important to evaluate your household's hot water needs. Tankless water heaters offer a continuous supply of hot water, as they heat water on demand. This can be a significant advantage for households that require larger amounts of hot water or have simultaneous hot water demands from multiple sources. On the other hand, if your hot water usage is minimal or you rarely experience running out of hot water with your current tank system, switching to a tankless water heater may not provide significant benefits in terms of convenience.

Ultimately, the decision to switch to a tankless water heater should be based on a careful assessment of your specific circumstances and needs. Considering factors such as the condition of your current system, the cost of installation, and your household's hot water usage will help you make an informed decision about whether now is the right time to make the switch.

https://www.youtube.com/watch?v=IQ1FSw2xVUs

Factors to Consider Points of Consideration Condition of current system - Is your tank water heater nearing the end of its lifespan?- Are you experiencing issues with your current system?- Is your current system still functioning well? Cost of installation - Compare the upfront cost of a tankless water heater to the potential long-term energy savings.- Consider any modifications or upgrades needed for installation. Household hot water needs - Assess the demand for hot water in your household.- Evaluate if your current system meets your hot water needs without running out.- Consider the benefit of a continuous supply of hot water with a tankless system.

Considering factors such as the condition of your current system, the cost of installation, and your household's hot water usage will help you make an informed decision about whether now is the right time to make the switch.

Factors to Consider in Tankless Water Heater Conversion

Switching from a traditional tank water heater to a tankless water heater involves several factors that need to be considered. By understanding these factors, homeowners can make an informed decision and ensure a successful conversion.

Size and Capacity

One of the key considerations when converting to a tankless water heater is determining the appropriate size and capacity for your home. Tankless units are available in different sizes, and it is essential to choose one that can meet your household's hot water demands. Factors such as the number of bathrooms, frequency of hot water usage, and the flow rates of your fixtures should be taken into account. Consulting with a professional can help you determine the right size for your specific needs.

Installation Requirements

Installing a tankless water heater may require modifications to your home's plumbing and electrical systems. It is crucial to understand the installation requirements and ensure that your home meets them. This may include upgrading the gas line, installing new water lines, and providing proper venting for the unit. Hiring a licensed plumber and electrician is highly recommended to ensure that the installation is done safely and up to code.

Tankless Water Heater Reviews

Before making a decision, it is beneficial to read tankless water heater reviews and gather feedback from others who have already made the switch. Reviews can provide insights into the performance, reliability, and overall satisfaction of different brands and models. Consider factors such as energy efficiency, durability, and customer support when evaluating reviews. Additionally, seeking recommendations from trusted sources can help in making an informed choice.

Factors to Consider Tankless Water Heater Tank Water Heater Energy Efficiency Highly efficient, only heats water when needed Constantly heats water, leading to energy waste Hot Water Supply Unlimited supply, never runs out of hot water Limited capacity, can run out of hot water Space Requirements Compact size, frees up space Large tank, requires dedicated space Maintenance Minimal maintenance required Regular maintenance needed

Considering these factors and conducting thorough research can help homeowners make an informed decision when converting from a tank water heater to a tankless system. By taking into account the size and capacity needed, understanding the installation requirements, and reviewing tankless water heater options, homeowners can enjoy the benefits of a more efficient and reliable hot water supply.

Steps to Convert from a Gas to Electric Tankless Water Heater

Switching from a gas tank water heater to an electric tankless water heater involves several essential steps. By following these steps, you can ensure a smooth and successful conversion process.

1. Consult with a reputable manufacturer or supplier: Start by reaching out to a trusted manufacturer or supplier who specializes in tankless water heaters. They can provide guidance on choosing the appropriate size and model for your specific needs.

2. Conduct a site inspection: Schedule a site inspection with a professional plumber and electrician. They will assess your current plumbing and electrical systems to determine if any modifications or upgrades are necessary to accommodate the new tankless water heater.

3. Order the unit: Once you have determined the correct size and model, place an order for the tankless water heater. Make sure to consider delivery times and coordinate with your installer to ensure a timely installation.

4. Schedule the installation: Coordinate with your plumber and electrician to schedule the installation of your new tankless water heater. It is crucial to have professional assistance to ensure proper installation and compliance with safety regulations.

During the installation process, your gas tank water heater will be disconnected, and the new electric tankless water heater will be installed in its place. The electrician will ensure that the electrical connections are properly set up, while the plumber will handle the water and drain connections. Once the installation is complete, you can enjoy the benefits of your new tankless water heater, including energy efficiency and on-demand hot water.

tankless water heater installation

Upgrading Your Gas Line for Tankless Water Heater

When transitioning from a tank water heater to a tankless water heater, it is essential to upgrade your gas line to accommodate the increased demand. Tankless water heaters require a larger gas line due to their higher gas consumption during operation. Upgrading the gas line ensures the safe and optimal performance of your tankless water heater, allowing you to enjoy its energy-efficient benefits.

To upgrade your gas line, it is crucial to work with a licensed contractor who specializes in tankless water heater installations. They will assess your current gas line and determine the necessary upgrades based on the specifications of your new tankless unit. This professional expertise ensures compliance with safety standards and local regulations.

During the gas line upgrade, the contractor will carefully evaluate the capacity of the existing gas line and determine if an expansion is required. They will ensure that the new gas line can deliver the necessary amount of gas to your tankless water heater efficiently. This may involve replacing sections of the existing line or extending it to reach the location of the tankless unit.

Upgrade Process Benefits Assessment of current gas line Safe and reliable performance of the tankless water heater Expansion or replacement of gas line Optimal gas delivery to the tankless unit Compliance with safety standards and regulations Peace of mind knowing the installation is up to code

Upgrading your gas line may involve additional costs, but it is a necessary investment to ensure the proper functioning of your tankless water heater. By partnering with a licensed professional, you can be confident in the quality of the upgrade and enjoy the energy-efficient benefits of your new tankless system for years to come.

Expert Tip:

The upgrade process for your gas line should only be handled by a licensed professional. Attempting to modify or extend the gas line yourself can lead to safety hazards and potential damage to your home. It is always best to rely on the expertise of professionals to ensure a safe and successful installation.

Removing the Old Water Heater

When transitioning from a tank water heater to a tankless water heater, the first step is to remove the old water heater. This process involves a few important tasks to ensure a smooth and safe installation of the new unit.

Start by turning off the water supply and gas line connected to the old water heater. This will prevent any potential leaks or accidents during the removal process. Next, drain the old water heater by attaching a hose to the drain valve and directing the water into a suitable drain or bucket.

Once the tank is emptied, you can disconnect the water and gas lines from the old water heater. It's crucial to carefully follow the manufacturer's instructions and use the appropriate tools for this step. If you're unsure about the process, it's best to seek professional assistance to avoid any damage or safety hazards.

Finally, after the old water heater has been completely disconnected, it's essential to dispose of it properly in accordance with local regulations. Many areas have specific guidelines for the disposal of water heaters, so be sure to check with your local waste management facility for the correct procedure.

Table: Steps to Remove the Old Water Heater

Step Description 1 Turn off the water supply and gas line connected to the old water heater. 2 Drain the old water heater by attaching a hose to the drain valve. 3 Disconnect the water and gas lines from the old water heater. 4 Dispose of the old water heater following local regulations.

By following these steps, you can safely remove the old water heater and prepare for the installation of your new tankless water heater. It's important to take the necessary precautions and seek professional help if needed to ensure a successful conversion.

https://www.youtube.com/watch?v=6CnswWQW7jQ

Mounting the Tankless Water Heater

Once you have chosen the right tankless water heater for your needs, the next step is to securely mount it in your desired location. Proper mounting is crucial for the stability and safe operation of the unit. Here's a step-by-step guide to help you with the installation process:

  1. Choose a suitable location: Select a spot that is close to the main water supply and gas line, as well as near an exterior wall for venting purposes. Make sure there is enough clearance around the unit for maintenance and future repairs.
  2. Build a mounting box: Using appropriate materials, construct a sturdy mounting box that meets the manufacturer's specifications. The box should be securely attached to the wall, ensuring stability for the tankless water heater.
  3. Mount the unit: Carefully place the tankless water heater onto the mounting box, ensuring it is level and securely attached. Follow the manufacturer's instructions for proper installation and use the recommended hardware for mounting.

By properly mounting your tankless water heater, you can ensure its longevity and optimal performance. It is recommended to consult a professional plumber or contractor for assistance, especially if you are unsure about the installation process or the structural integrity of the mounting area.

Pros of Mounting the Tankless Water Heater Cons of Improper Mounting Secure and stable installation Increased risk of damage or accidents Optimal performance and efficiency Potential voiding of warranty Easier maintenance access Compromised functionality

Remember, the proper mounting of your tankless water heater is essential for its safe and efficient operation. Follow the manufacturer's guidelines and consult a professional if needed. With a securely mounted unit, you can enjoy the benefits of endless hot water and energy savings.

Tankless Water Heater Installation: Ensuring a Safe and Efficient Conversion

When it comes to converting from a tank water heater to a tankless water heater, proper installation is crucial to ensure safety and efficiency. Here, we will guide you through the important steps involved in installing a tankless water heater, highlighting key considerations and best practices. By following these guidelines and seeking professional assistance, you can successfully complete the conversion process and enjoy the benefits of a tankless water heater.

Consultation and Sizing

Before starting the installation, it is essential to consult with a reputable manufacturer or supplier to determine the appropriate size of the tankless unit for your home. Factors such as the number of bathrooms, appliances, and the flow rate needed should be taken into account. An undersized unit will result in insufficient hot water, while an oversized unit will waste energy. By properly sizing the tankless water heater, you can ensure optimal performance and efficiency.

Site Inspection and Preparation

Next, a site inspection should be conducted with a plumber and electrician to evaluate the existing infrastructure and determine any necessary modifications. This includes assessing the gas supply line, electrical capacity, and venting requirements. It is crucial to ensure that the gas line and electrical system can handle the increased demand of a tankless water heater. Additionally, proper ventilation must be provided to safely remove combustion gases from the unit.

Professional Installation

Once the necessary preparations have been made, it is time to schedule the installation of your tankless water heater. Due to the complexity of the installation process, it is highly recommended to seek professional assistance. A licensed plumber and electrician have the knowledge and expertise to properly connect the gas line, install the water lines, and ensure compliance with local codes and regulations. Professional installation not only guarantees safety but also minimizes the risk of errors that could impact the performance of your tankless water heater.

In conclusion, installing a tankless water heater involves careful planning, consultation, and professional assistance. By following the recommended steps and working with experienced professionals, you can ensure a seamless and successful conversion from a traditional tank water heater to a tankless option. With its energy efficiency and endless hot water supply, a properly installed tankless water heater can provide long-term savings and enhanced comfort for your home.

tankless water heater installation

Installing New Water Lines for Tankless Water Heater

When converting from a traditional tank water heater to a tankless water heater, one crucial step is installing new water lines. These water lines connect the water supply to the tankless unit, ensuring proper functioning and a reliable flow of hot water throughout your home.

It is recommended to use copper piping for the water lines, as it is durable and resistant to corrosion. The first step is to measure and cut the copper pipes to the appropriate lengths, keeping in mind the distance between the tankless water heater and the existing water supply. Next, use a pipe cutter to create clean, straight cuts.

After cutting the pipes, it is essential to properly seal the connections. This can be achieved through soldering, which involves heating the pipes and applying a soldering material to create a watertight seal. Following the manufacturer's instructions, apply flux to the ends of the pipes, insert them into fittings, and use a propane torch to heat the joints. Once the solder melts and flows smoothly, remove the torch and allow the joints to cool.

Example Table: Water Line Installation Materials

Materials Quantity Copper pipes (½ inch diameter) 20 feet Couplings and elbows As needed Flux 1 bottle Soldering material 1 roll Propane torch 1 torch Pipe cutter 1 cutter

Once the water lines are securely connected, it is important to check for any leaks. Turn on the water supply and carefully inspect all joints and connections. If any leaks are detected, tighten the fittings or re-solder the joints as necessary. Proper sealing of the water lines ensures efficient operation and prevents water damage in your home.

Remember, installing new water lines for a tankless water heater should be done following relevant plumbing codes and regulations. If you are unsure about the installation process, it is recommended to seek professional assistance from a licensed plumber.

Installing the Pressure Relief Valve for Tankless Water Heater

During the installation of a tankless water heater, it is crucial to ensure that a pressure relief valve is installed properly. The pressure relief valve is a safety device that helps release excess pressure if it builds up in the system, preventing potential hazards.

"The pressure relief valve is an essential component of a tankless water heater installation. It plays a crucial role in maintaining the safety and functionality of the system."

When installing the pressure relief valve, it is important to follow the manufacturer's instructions carefully. This ensures the proper placement and connection of the valve to the tankless unit. It is recommended to use the appropriate fittings and techniques to ensure a secure and leak-free connection.

Additionally, regular maintenance of the pressure relief valve is essential to ensure its proper functioning. It is recommended to inspect the valve periodically and test it according to the manufacturer's guidelines. Any signs of wear or malfunction should be addressed promptly by a professional for optimal safety and performance of the tankless water heater system.

https://www.youtube.com/watch?v=1E3DDhczoJM

Table: Comparison of Pressure Relief Valve Sizes for Different Tankless Water Heater Capacities

Tankless Water Heater Capacity Recommended Pressure Relief Valve Size Less than 5 gallons per minute (GPM) 3/4 inch 5 to 10 GPM 1 inch More than 10 GPM 1 1/4 inch

Installing the Exhaust Vent for Tankless Water Heater

Proper venting is a crucial aspect of installing a tankless water heater to ensure the safe removal of combustion gases. The exhaust vent is responsible for directing these gases outside. It is essential to follow manufacturer specifications and local code regulations when installing the venting system.

The exhaust vent for a tankless water heater should be vented directly to the outside and must be made of suitable materials to withstand high temperatures. Common venting materials include PVC, stainless steel, or aluminum. The size and configuration of the venting system will depend on the specific model and capacity of the tankless water heater and the layout of the installation site.

To properly install the exhaust vent, follow these steps:

  1. Determine the optimal location for the vent to ensure it is away from windows, doors, or other ventilation openings.
  2. Drill a hole through the exterior wall for the vent pipe to pass through. The size of the hole should match the diameter of the vent pipe.
  3. Attach the appropriate vent pipes to the water heater, ensuring a secure connection using the recommended fittings and sealants.
  4. Extend the vent pipe through the drilled hole and position it at the appropriate angle to promote efficient gas discharge. The pipe should have a slight slope to prevent condensation build-up.
  5. Secure the vent pipe to the exterior wall using brackets or straps to ensure stability.
  6. Check for proper alignment and secure all connections with fasteners or clamps as required.

It is important to note that the exhaust vent installation for a tankless water heater should be performed by a professional who is knowledgeable about local building codes and regulations. A licensed plumber or HVAC contractor will have the expertise to ensure a safe and efficient venting system that complies with all necessary requirements.

Pros Cons Ensures safe removal of combustion gases Requires professional installation Complies with local building codes and regulations May require additional materials and labor Prevents the buildup of harmful gases indoors Requires careful planning and precise installation

"Proper venting is crucial when installing a tankless water heater to ensure the safe removal of combustion gases. A well-functioning exhaust vent prevents the buildup of harmful gases indoors, protecting the occupants' health and safety." - HVAC Specialist

Conclusion

Switching from a tank water heater to a tankless water heater offers numerous benefits for homeowners. By making this energy-efficient conversion, you can enjoy significant cost savings and the convenience of never running out of hot water. However, it is crucial to approach the tankless water heater installation with careful planning and professional assistance to ensure a successful and safe transition.

When considering the switch, it is important to evaluate the timing based on the condition of your current tank water heater. If it is still functioning well, you may not need to switch immediately. However, if your tank water heater is nearing its lifespan or causing issues, it may be the right time to upgrade to a tankless system.

Throughout the conversion process, factors such as the size of the unit, installation requirements, and code compliance should be considered. Consulting reputable manufacturers and reading tankless water heater reviews can provide valuable insights. Additionally, seeking professional assistance for steps like upgrading the gas line, removing the old water heater, and installing the tankless unit ensures safety and optimal performance.

By carefully considering the factors involved and following the recommended steps, homeowners can successfully switch from a tank water heater to a tankless water heater, enjoying the benefits of energy efficiency and endless hot water.

FAQ

What are the benefits of switching to a tankless water heater?

Lightning fast quotes.

Our water heater experts are standing by to help. Complete our form or call to schedule service.

Get a quoteA picture of a water heaters now technician.