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Guide on How to Choose a Tankless Water Heater - Best Options

Welcome to our comprehensive guide on how to choose a tankless water heater. If you're looking to upgrade your water heating system, a tankless water heater is a great option. Not only are they energy-efficient, but they also provide hot water instantly and can save you money on utility bills. In this guide, we will walk you through everything you need to know to make the right choice for your home.

Key Takeaways:

  • Consider the factors of cost, fuel type, size, and maintenance requirements when choosing a tankless water heater.
  • Gas-powered tankless water heaters are more efficient and provide a larger amount of hot water, while electric tankless water heaters are generally cheaper to install and can be placed anywhere.
  • Determine the appropriate size and capacity based on the number of fixtures and hot water demand in your home.
  • Regular maintenance is necessary for optimal performance and longevity of your tankless water heater, including professional servicing at least once a year.
  • Professional installation is recommended for proper installation and safety compliance.

Factors to Consider When Selecting a Tankless Water Heater

Choosing the right tankless water heater requires careful consideration of several factors. By evaluating these aspects, you can make an informed decision and select a model that best suits your needs. Here are some tips to help you choose the right tankless water heater:

Household Size and Hot Water Usage

Consider the number of people in your household and your daily hot water needs. A larger household with high hot water demand may require a tankless water heater with a higher flow rate. On the other hand, a smaller household can opt for a model with a lower flow rate to save on energy costs. Take into account the number of fixtures and appliances that will be using hot water simultaneously to determine the appropriate flow rate for your needs.

Temperature Rise and Desired Hot Water Output

The temperature rise refers to the difference between the incoming cold water temperature and the desired hot water temperature. Evaluate the temperature rise required to meet your specific needs. Different tankless water heaters have different capabilities when it comes to temperature rise. It's important to choose a unit that can provide the desired hot water output at the required temperature rise.

Cost and Energy Efficiency

Consider the upfront cost of the tankless water heater, including the unit itself and any installation fees. It's also essential to evaluate the long-term energy efficiency of the unit. Energy-efficient models can help you save on utility bills over time. Look for Energy Star certified tankless water heaters, as they meet strict efficiency standards and can provide significant energy savings.

Fuel Type and Maintenance Requirements

Determine whether you prefer a gas or electric tankless water heater. Each fuel type has its advantages and considerations. Gas tankless water heaters tend to have higher upfront costs but offer faster heating capabilities and higher hot water output. Electric tankless water heaters are typically less expensive to install and can be placed almost anywhere. Additionally, consider the maintenance requirements of the tankless water heater. Regular maintenance is essential to ensure optimal performance and longevity.

Factors to Consider Tips Household Size and Hot Water Usage Consider the number of people and appliances using hot water simultaneously to determine the required flow rate. Temperature Rise and Desired Hot Water Output Evaluate the temperature rise needed to achieve the desired hot water temperature and choose a unit that can meet those requirements. Cost and Energy Efficiency Weigh the upfront cost of the unit against its long-term energy efficiency to find a cost-effective option. Fuel Type and Maintenance Requirements Consider the advantages and considerations of gas and electric models, and factor in the maintenance requirements of the chosen unit.

Tankless Water Heater Cost and Types

When considering a tankless water heater, it's important to understand the cost associated with these units and the various types available. The cost of a tankless water heater can vary depending on factors such as size, fuel type, and installation requirements. Let's take a closer look at the different types of tankless water heaters and their costs.

Gas Tankless Water Heaters

Gas tankless water heaters are known for their quick water heating capabilities and high hot water output. These units are powered by natural gas or propane and are suitable for larger households with higher hot water demands. While gas tankless water heaters may have higher installation costs, they offer long-term cost savings through energy efficiency. The cost of a gas tankless water heater can range from $1,000 to $2,500, depending on the size and features.

Electric Tankless Water Heaters

Electric tankless water heaters use electric elements to heat the water, making them a versatile option that can be installed almost anywhere. They are generally less expensive to install than gas models and do not require venting. However, electric tankless water heaters may have higher operating costs, as electricity tends to be more expensive than natural gas. The cost of an electric tankless water heater typically ranges from $500 to $1,500.

Indoor vs. Outdoor Tankless Water Heaters

Tankless water heaters can be installed either indoors or outdoors, depending on your specific needs and preferences. Indoor units are protected from the elements but require ventilation piping for proper operation. They are typically more expensive to install due to the additional ventilation requirements. Outdoor units, on the other hand, are designed to withstand various weather conditions and require less maintenance. The cost of an indoor or outdoor tankless water heater can vary depending on the brand and size.

Type Installation Cost Operating Cost Gas Tankless Water Heater $1,000 - $2,500 Lower Electric Tankless Water Heater $500 - $1,500 Higher Indoor Tankless Water Heater Varies Varies Outdoor Tankless Water Heater Varies Varies

As you can see, the cost of a tankless water heater depends on various factors, including the type, size, and installation requirements. When making a decision, consider your budget, hot water needs, and long-term energy savings. Consult with a professional to determine the best option for your home.

Size and Capacity Considerations

When choosing a tankless water heater, it's essential to consider the size and capacity that will meet your household's hot water demand. The size of the tankless water heater refers to its physical dimensions, while the capacity refers to its ability to provide a certain amount of hot water per minute. Both factors play a crucial role in ensuring that you have an uninterrupted supply of hot water.

If you have a larger household with multiple bathrooms and appliances that require hot water simultaneously, a whole-house tankless water heater is recommended. These units are designed to meet the high demand of larger households and can provide hot water throughout the entire home. On the other hand, if you have a smaller living space or specific appliances that require hot water, a point-of-use tankless water heater may be a more suitable option. These compact units are installed near the specific appliance or faucet, ensuring hot water is readily available.

When determining the appropriate size and capacity of the tankless water heater, calculate the gallons per minute (gpm) needed for simultaneous use. Consider the number of fixtures in your home that require hot water and their average flow rates. Additionally, determine the temperature rise required to heat the water to your desired temperature. This will ensure that the tankless water heater you choose can effectively meet your hot water needs.

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Tankless Water Heater Type Size Capacity Whole-house tankless water heater Larger dimensions High-capacity Point-of-use tankless water heater Compact Varies based on specific model

Fuel Type Considerations

When selecting a tankless water heater, one of the key factors to consider is the fuel type. The two main options available are gas tankless water heaters and electric tankless water heaters. Each type has its own advantages and considerations to keep in mind.

Gas Tankless Water Heater

A gas tankless water heater is powered by natural gas or propane. These units are known for their quick water heating capabilities and high hot water output. They are especially suitable for larger households with higher hot water demands. Gas tankless water heaters are also more energy-efficient in the long term, resulting in cost savings on utility bills. However, they do require proper installation and maintenance to ensure optimal performance and safety.

Electric Tankless Water Heater

Electric tankless water heaters use electric elements to heat the water, making them a versatile option that can be installed almost anywhere. They are generally less expensive to install compared to gas models and do not require venting. Electric tankless water heaters are ideal for smaller households or locations where gas availability is limited. However, it's important to note that they may have higher operating costs and may require an upgrade of the home's electrical system to accommodate the increased power consumption.

Fuel Type Advantages Considerations Gas Tankless Water Heater - Quick water heating- High hot water output- Energy-efficient - Requires proper installation and maintenance- May have higher upfront costs Electric Tankless Water Heater - Versatile installation options- Lower upfront costs- No venting required - May have higher operating costs- May require electrical system upgrade

Consider the availability of gas or electricity in your area and evaluate the long-term energy efficiency of each option. Consulting with professionals can help you make an informed decision based on your specific needs and circumstances.

gas tankless water heater

Maintenance Requirements

Proper maintenance is essential to ensure the optimal performance and longevity of your tankless water heater. Regular servicing by a professional is recommended to keep the unit running smoothly. We offer professional tankless water heater maintenance services to help you maintain your investment.

During a maintenance service, our technicians will perform a thorough inspection of your tankless water heater. This includes checking the air filter, ensuring proper ventilation, and inspecting the burner for any signs of damage or wear. They will also clean and remove any mineral buildup that may have accumulated over time.

Regular maintenance not only helps prevent unexpected breakdowns but also ensures that your tankless water heater operates at its highest efficiency. By keeping your unit well-maintained, you can save on energy costs and prolong the lifespan of your tankless water heater.

Service Price Range Annual maintenance $45 - $130 Biannual maintenance (cold area or hard water) $90 - $260

Our professional tankless water heater maintenance services are competitively priced and tailored to meet your specific needs. Contact us today to schedule an appointment and ensure your tankless water heater remains in optimal condition for years to come.

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Detailed Tankless Water Heater Installation Guide

When it comes to installing a tankless water heater, it is crucial to seek professional assistance to ensure a successful and safe installation. Professional water heater installation provides several advantages, including expertise in handling potentially dangerous gas and venting systems, compliance with safety codes and permits, and assessment of the compatibility of the water heater with your home's infrastructure.

A qualified plumber or water heater specialist can guide you through the installation process, ensuring that the unit is properly connected and functioning optimally. They can also offer valuable advice on choosing the right tankless water heater for your specific needs, taking into account factors such as hot water demand, fuel type, and maintenance requirements.

Benefits of Professional Tankless Water Heater Installation:

  • Expertise in handling potentially dangerous gas and venting systems
  • Compliance with safety codes and permits
  • Assessment of the unit's compatibility with your home's infrastructure
  • Guidance in choosing the right tankless water heater
  • Professional installation ensures proper connection and optimal performance

By opting for professional water heater installation, you can have peace of mind knowing that your tankless water heater is installed correctly, reducing the risk of malfunctions and ensuring the longevity of the unit.

Summary:

Installing a tankless water heater is not a DIY project and requires the expertise of a professional. Professional water heater installation offers several advantages, including compliance with safety codes, proper connection of the unit, and guidance in choosing the right tankless water heater for your specific needs. By opting for professional installation, you can ensure a successful and safe installation, maximizing the performance and lifespan of your tankless water heater.

tankless water heater installation

Table: Comparison of DIY vs. Professional Tankless Water Heater Installation

DIY Installation Professional Installation Expertise Limited knowledge and experience Qualified professionals with expertise Compliance No guarantee of compliance with safety codes and permits Ensures compliance with safety codes and permits Compatibility No assessment of compatibility Assesses compatibility with your home's infrastructure Guidance Limited guidance in choosing the right unit Guidance in selecting the right tankless water heater Connection Risk of improper connection Ensures proper connection for optimal performance

Top Tankless Water Heater Brands

When it comes to choosing a tankless water heater, there are several top-rated brands that consistently deliver quality and performance. These brands include Rinnai, Rheem, Stiebel Eltron, EcoSmart, and Bosch. Each brand offers a range of models with various features and capacities to suit different needs.

Let's take a closer look at these top tankless water heater brands:

Rinnai Tankless Water Heater

Rinnai is known for its innovative and energy-efficient tankless water heaters. Their units are designed to provide endless hot water while minimizing energy consumption. Rinnai offers a wide selection of models, including both gas and electric options, that cater to different household sizes and hot water demands. With advanced features and smart technology, Rinnai tankless water heaters are a popular choice among homeowners.

Rheem Tankless Water Heater

Rheem is another trusted brand in the tankless water heater industry. Their units are known for their reliability, durability, and energy efficiency. Rheem offers both gas and electric tankless water heaters that are designed to provide consistent hot water on demand. With a wide range of models and sizes available, Rheem tankless water heaters can meet the needs of various households.

Stiebel Eltron Tankless Water Heater

Stiebel Eltron is a German brand that has been producing high-quality tankless water heaters for over 90 years. Their units are known for their precision engineering, durability, and energy efficiency. Stiebel Eltron offers a range of electric tankless water heaters that are compact, reliable, and easy to install. With advanced technology and German craftsmanship, Stiebel Eltron tankless water heaters are a top choice for many homeowners.

EcoSmart Tankless Water Heater

EcoSmart is a brand that specializes in eco-friendly and energy-efficient tankless water heaters. Their units are designed to save space, reduce energy consumption, and deliver hot water on demand. EcoSmart offers a wide selection of electric tankless water heaters that are compact, efficient, and easy to install. With their commitment to sustainability and innovation, EcoSmart tankless water heaters are a popular choice for environmentally-conscious homeowners.

Bosch Tankless Water Heater

Bosch is a well-known brand that produces a wide range of home appliances, including tankless water heaters. Bosch tankless water heaters are known for their quality, performance, and energy efficiency. They offer both gas and electric models that are designed to provide continuous hot water while saving energy. With their reputation for reliability and cutting-edge technology, Bosch tankless water heaters are a trusted choice for many homeowners.

Brand Types Features Rinnai Gas, Electric Endless hot water, energy-efficient, smart technology Rheem Gas, Electric Reliable, durable, energy-efficient Stiebel Eltron Electric Precision engineering, durable, compact EcoSmart Electric Eco-friendly, energy-efficient, space-saving Bosch Gas, Electric Quality, performance, energy efficiency

How to Choose a Tankless Water Heater

When it comes to choosing a tankless water heater, there are several important factors to consider. By evaluating your specific needs and conducting thorough research, you can select the right unit that meets your requirements. Here's a step-by-step guide to help you through the tankless water heater selection process.

1. Assess Your Hot Water Needs

The first step is to determine your household's hot water usage. Consider the number of people in your home and the appliances that require hot water. This will help you determine the required flow rate and temperature rise. By understanding your hot water needs, you can choose a tankless water heater that can provide an adequate and continuous supply.

2. Determine the Right Size and Capacity

Next, consider the size and capacity of the tankless water heater. Calculate the gallons per minute (GPM) needed for simultaneous hot water usage in your home. This will help you determine whether a whole-house unit or point-of-use tankless water heaters are the best fit for your needs. A whole-house unit provides hot water for the entire home, while point-of-use units are installed near specific faucets or appliances.

3. Consider the Fuel Type

The fuel type is another important consideration. Gas-powered tankless water heaters are often more efficient and provide a higher hot water output, making them suitable for larger households. On the other hand, electric tankless water heaters are generally more affordable and versatile in terms of installation options. Consider the availability of gas or electricity in your area and weigh the pros and cons of each fuel type.

4. Evaluate Maintenance Requirements

Lastly, don't forget to consider the maintenance requirements of the tankless water heater. Regular maintenance is essential to ensure optimal performance and longevity. Some units may require periodic cleaning and flushing to prevent mineral buildup. Take into account the additional costs and time associated with maintenance when making your decision.

By following these steps and considering the factors mentioned above, you can make an informed decision and choose a tankless water heater that suits your needs and budget. Remember to consult with professionals and reputable brands for further guidance and assistance in selecting the right unit for your home.

Non-Condensing vs. Condensing Tankless Water Heaters

When considering a tankless water heater, one important decision you'll need to make is whether to opt for a non-condensing or a condensing model. Both types have their advantages and it's important to understand the differences to make an informed choice.

Non-condensing tankless water heaters utilize heat exchangers to heat the water, which requires venting to remove exhaust gases. These models tend to have lower installation costs compared to condensing tankless water heaters. However, they may be less energy-efficient since they do not utilize the heat from the exhaust gases. Non-condensing tankless water heaters are a suitable option if upfront cost is a major consideration and the venting requirements can be met.

Condensing tankless water heaters, on the other hand, use the high-temperature exhaust gases to further heat the water, resulting in improved energy efficiency. This eliminates the need for expensive venting materials, making installation potentially easier and more cost-effective. While condensing tankless water heaters may have higher upfront costs, their greater energy efficiency can lead to lower overall expenses in the long run. If energy efficiency is a priority and you're willing to invest in a higher quality unit, a condensing tankless water heater may be the right choice for you.

Non-Condensing Tankless Water Heaters Condensing Tankless Water Heaters Lower installation costs Potentially higher upfront costs Require venting for exhaust gases No need for expensive venting materials May be less energy-efficient Greater energy efficiency

Ultimately, the choice between a non-condensing and a condensing tankless water heater depends on your priorities, budget, and specific installation requirements. Consider factors such as the initial cost, long-term energy efficiency, and the feasibility of venting when making your decision.

Tankless Gas Water Heaters

Gas tankless water heaters are a popular choice among homeowners due to their quick water heating capabilities and high hot water output. These units are powered by natural gas or propane, offering a cost-effective solution in the long run. Gas tankless water heaters are especially suitable for larger households with higher hot water demands.

One of the main advantages of gas tankless water heaters is their energy efficiency. They heat water on demand, eliminating the need for standby energy consumption. This results in significant energy savings and lower utility bills over time. Gas tankless water heaters are known for their high hot water flow rates, ensuring that multiple fixtures can be used simultaneously without any loss in water pressure or temperature.

When it comes to installation, it is important to hire a professional for gas tankless water heater installation. This ensures proper venting and gas line connections, as well as compliance with safety codes and regulations. Professional installation also ensures that the unit is properly sized and compatible with your home's infrastructure, maximizing efficiency and performance.

Advantages of Gas Tankless Water Heaters Considerations

  • Quick water heating capabilities
  • High hot water output
  • Energy-efficient
  • Cost-effective in the long run
  • Professional installation required
  • Proper venting and gas line connections
  • Compliance with safety codes
  • Proper sizing for maximum efficiency

In conclusion, gas tankless water heaters are a reliable and efficient choice for homeowners looking to meet their hot water needs. With their quick water heating capabilities and high hot water output, they can provide a cost-effective solution for households with higher hot water demands. However, it is crucial to ensure professional installation to guarantee safety, proper venting, and optimal performance. Consider the advantages and considerations of gas tankless water heaters when selecting the right option for your home.

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Tankless Electric Water Heaters

Electric tankless water heaters are a versatile and convenient option for providing hot water in your home. They use electric elements to heat the water, eliminating the need for a gas supply and venting. This makes them suitable for installation in various locations, including smaller spaces or areas where gas availability is limited. However, there are a few important considerations to keep in mind when choosing and installing an electric tankless water heater.

Electric Tankless Water Heater Installation

Installing an electric tankless water heater requires careful planning and consideration of your home's electrical system. These units typically require a significant amount of power to operate, so it's essential to ensure that your electrical system can handle the increased load. It may be necessary to upgrade your electrical panel or wiring to accommodate the higher power consumption.

In addition to electrical considerations, proper installation is crucial for optimal performance and safety. It's recommended to hire a professional electrician or plumber experienced in tankless water heater installations. They will ensure that the unit is installed correctly, comply with local codes and regulations, and perform any necessary electrical work with expertise and precision.

Advantages of Electric Tankless Water Heaters

Electric tankless water heaters offer several advantages that make them a popular choice for homeowners. First and foremost, they provide instant hot water on demand, eliminating the need for a storage tank and reducing energy waste. They are also compact and space-saving, allowing for flexible installation in various locations, such as under sinks or in closets.

Furthermore, electric tankless water heaters are generally more affordable to purchase and install compared to their gas counterparts. They don't require venting or a gas line, which can significantly reduce installation costs. Additionally, electric tankless water heaters have a longer lifespan and require less maintenance, as they don't have combustion components that can wear out over time.

Considerations for Choosing an Electric Tankless Water Heater

When selecting an electric tankless water heater, there are a few factors to consider. First, determine the desired flow rate and temperature rise needed to meet your hot water demands. This will help determine the appropriate size and capacity of the unit. Additionally, consider the warranty offered by the manufacturer, as well as any special features such as digital controls or energy-saving modes that may be available.

It's also important to evaluate the energy efficiency of the unit. Look for models that are ENERGY STAR certified, as they meet strict efficiency guidelines and can help you save on energy costs in the long run. Finally, read customer reviews and compare prices to find a reliable and cost-effective electric tankless water heater that suits your specific needs and budget.

Point-of-Use Tankless Water Heaters

Point-of-use tankless water heaters are compact units designed to provide hot water to specific appliances or faucets. These smaller and less expensive alternatives to whole-house tankless water heaters are ideal for smaller spaces or as supplemental hot water sources. By installing a point-of-use tankless water heater near the appliance or faucet, you can reduce lag time and ensure instant hot water availability.

Unlike whole-house tankless water heaters, which heat water for the entire house, point-of-use units are designed to serve a specific location. This targeted approach allows for efficient energy usage and eliminates the need to wait for hot water to travel through pipes. Whether it's your bathroom sink, kitchen faucet, or a remote location in your home that requires hot water, a point-of-use tankless water heater can provide the convenience you need.

One of the benefits of using a point-of-use tankless water heater is the potential for energy savings. These units only heat the water needed for a specific appliance or faucet, avoiding the standby energy losses associated with traditional storage tank water heaters. By eliminating the need to continuously heat and store a large volume of water, point-of-use tankless water heaters help reduce energy consumption and lower utility bills.

When considering a point-of-use tankless water heater, it's important to assess your specific hot water usage and understand the capacity requirements of the targeted appliance or faucet. This will help you determine the appropriate size and output of the unit. Additionally, consult with a professional plumber or water heater specialist to ensure proper installation and compatibility with your home's plumbing system.

Special Features to Consider

When choosing a tankless water heater, it's important to consider not only the basic factors such as size, capacity, and fuel type, but also the special features that can enhance the functionality and convenience of the unit. Here are two important special features to consider:

Built-in Recirculation Pump

A built-in recirculation pump is a valuable feature for a tankless water heater. This pump circulates hot water through the pipes, ensuring that hot water is readily available at all faucets and appliances. With a recirculation pump, you no longer have to wait for the water to heat up, saving both time and water. It's an especially useful feature for larger households or homes with multiple bathroo

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