Welcome to our efficient electric whole house tankless water heater guide. If you're looking for a cost-effective and energy-efficient solution to provide hot water for your home, then you've come to the right place. Tankless water heaters are a smart choice, offering significant energy savings compared to traditional storage tank water heaters. In this guide, we'll explore the factors to consider when choosing an electric whole house tankless water heater, helping you make an informed decision for your household's hot water needs.
Key Takeaways:
- Electric whole house tankless water heaters are energy-efficient, saving up to 34% more energy compared to storage tank water heaters.
- Proper sizing is crucial when choosing an electric tankless water heater, considering factors such as the number of fixtures and the hot water usage in your household.
- Consider the benefits of electric tankless water heaters, such as cost savings, space-saving design, and longer lifespan.
- Choosing the right size for an electric tankless water heater involves understanding your household's hot water demands and selecting a unit that can meet the required flow rates and temperature rise.
- Consulting a professional and researching top tankless water heater brands can help you make an informed decision.
The Benefits of Electric Tankless Water Heaters
Electric tankless water heaters offer numerous benefits that make them a popular choice for homeowners. One of the key advantages is their energy efficiency. Unlike traditional storage tank water heaters that constantly heat and store hot water, electric tankless water heaters only heat water when it is needed. This on-demand hot water delivery system reduces energy consumption and can save you money on your utility bills.
In addition to being energy-efficient, electric tankless water heaters also offer space-saving benefits. These units are compact in size and can be installed in smaller spaces, freeing up valuable square footage in your home. Whether you have limited space in your utility room or want to maximize storage options, electric tankless water heaters provide a practical solution.
Furthermore, electric tankless water heaters have a longer lifespan compared to traditional water heaters. With proper maintenance, these units can last up to 20 years or more, providing reliable hot water for many years to come. This longevity not only saves you money on replacement costs but also reduces the environmental impact of disposing of old water heaters.
"Electric tankless water heaters are energy-efficient and space-saving, making them a smart choice for homeowners."
To summarize, electric tankless water heaters are an energy-efficient and cost-saving option for homeowners. They provide hot water on demand, saving energy by eliminating standby heat loss. Additionally, their compact size and long lifespan make them a practical and eco-friendly choice. With these benefits in mind, it's no wonder why more and more homeowners are opting for electric tankless water heaters for their hot water needs.
https://www.youtube.com/watch?v=OZOvmn3hU3Y
Understanding Electric Tankless Water Heater Sizing
When it comes to choosing an electric tankless water heater, proper sizing is crucial. You want to ensure that the unit you select can meet the hot water demands of your household without wasting energy or compromising performance. To determine the right size, there are several factors to consider.
Factors to Consider for Electric Tankless Water Heater Sizing
Firstly, you need to take into account the number of fixtures you want to operate simultaneously. This includes showers, faucets, and appliances that require hot water. Each fixture has its own hot water usage, measured in gallons per minute (GPM). By calculating the total GPM for all fixtures, you can determine the minimum flow rate required for the tankless water heater to meet your needs.
Additionally, consider the desired temperature rise. This refers to the amount by which the incoming cold water needs to be heated to reach the desired hot water temperature. The greater the temperature rise, the higher the flow rate required from the tankless water heater.
Other factors to consider include the number of people in your household and their hot water usage patterns. Larger households with more occupants will typically require a higher flow rate and larger unit. Furthermore, take into account any specific features or needs, such as multiple bathrooms or high-demand appliances like washing machines or dishwashers.
Using a Tankless Water Heater Size Calculator
To simplify the sizing process, you can utilize a tankless water heater size calculator. These online tools take into account the factors mentioned above and provide an estimate of the flow rate and unit size that will best suit your needs. They offer a convenient way to ensure that you choose the right electric tankless water heater for your household.
Factors to Consider for Electric Tankless Water Heater Sizing
Choosing the right size for your electric tankless water heater is crucial to ensure optimal performance and efficiency. Factors such as flow rates, desired temperature rise, household size, and hot water usage patterns should all be carefully considered. Let's take a closer look at these factors:
1. Flow Rates (GPM) of Fixtures
The flow rates of your fixtures, such as showers, faucets, and appliances, play a significant role in determining the size of your tankless water heater. Different fixtures have different GPM (gallons per minute) ratings, which indicate the amount of hot water they require. By calculating the total GPM of all the fixtures you want to operate simultaneously, you can determine the minimum flow rate your tankless water heater needs to handle.
2. Desired Temperature Rise
The desired temperature rise is the increase in water temperature required to meet your hot water needs. This will depend on your climate and personal preferences. For example, if the incoming cold water temperature is 50°F and you want your hot water to reach 120°F, you'll need a temperature rise of 70°F. The greater the desired temperature rise, the larger the size of the tankless water heater needed to achieve that rise.
3. Household Size and Hot Water Usage
The number of people in your household and their hot water usage patterns also impact the sizing of your tankless water heater. A larger household with more people will generally have a higher demand for hot water, requiring a larger unit to meet that demand adequately. Consider the frequency of hot water usage and the peak demand to determine the appropriate size.
4. Fuel Type and Maintenance Requirements
When sizing an electric tankless water heater, it's essential to consider the fuel type and maintenance requirements. Electric tankless water heaters are generally easier to maintain than gas-powered units, which may require regular inspections and maintenance. Additionally, electric tankless water heaters are often more compact, making them suitable for smaller spaces.
By carefully considering these factors, you can ensure that you choose the right size for your electric tankless water heater, providing efficient and cost-effective hot water for your household's needs.
https://www.youtube.com/watch?v=ml8HFHdwfOU
Reference: "Efficient Electric Whole House Tankless Water Heater Guide"
The Efficient Sizing for Electric Tankless Water Heaters
When it comes to choosing an electric tankless water heater, efficient sizing is crucial. Properly sizing your unit ensures that you have enough hot water to meet your household's needs without wasting energy on an oversized unit. To achieve efficient sizing, it's essential to calculate your water usage accurately. By considering factors such as the flow rates of your fixtures and the desired temperature rise, you can determine the right size for your electric tankless water heater.
Calculating water usage for electric tankless water heaters involves understanding the hot water demands of your household. Take into account the number of fixtures and appliances that will be in use simultaneously, as well as their individual flow rates. By knowing the specific water usage for each fixture, you can select a unit that can comfortably handle the demand.
"Efficient sizing ensures that you have enough hot water without wasting energy on an oversized unit."
It's important to note that undersizing your electric tankless water heater can lead to insufficient hot water supply, while oversizing can result in unnecessary energy consumption. By finding the right balance, you can optimize the performance and efficiency of your electric tankless water heater, saving both energy and money in the long run.
Fixture Flow Rate (GPM) Shower 2.5 Kitchen Sink 1.5 Bathroom Sink 1.0 Dishwasher 1.5 Washing Machine 2.0
Here's an example table displaying the flow rates (GPM) of common fixtures in a household. By adding up the flow rates of the fixtures you expect to operate simultaneously, you can estimate your total hot water usage and use it as a guide when selecting the right size for your electric tankless water heater.
Best Practices for Electric Tankless Water Heater Sizing
Choosing the right size for your electric tankless water heater is crucial for optimal performance and efficiency. Here are some best practices to consider:
Determine Your Hot Water Needs:
Consult a professional to accurately assess your household's hot water usage. Consider factors such as the number of fixtures and appliances that will be in use simultaneously. This will help you determine the flow rates (GPM) required and the desired temperature rise.
Consider Peak Demand:
Take into account the peak demand for hot water in your household. This is the maximum amount of hot water you will need to use at any given time. By sizing your electric tankless water heater to meet this demand, you can ensure a constant supply of hot water without any interruptions.
Plan for Future Expansions:
If you anticipate any future expansions or additions to your household, factor them into your sizing calculations. This will help you select a unit that can accommodate the increased hot water demands that may arise in the future.
Seek Professional Guidance:
It's always recommended to consult a professional when sizing your electric tankless water heater. They have the expertise to accurately assess your needs and recommend the right size and model for your specific requirements.
https://www.youtube.com/watch?v=RLMFrEp7S8k
Choosing the Right Size for an Electric Tankless Water Heater
When it comes to selecting an electric tankless water heater, choosing the right size is crucial to ensure optimal performance and efficiency. Oversizing or undersizing can lead to unnecessary energy consumption or inadequate hot water supply. To help you make the right decision, we've outlined the key factors to consider.
Household Hot Water Demand
The first step in choosing the right size for your electric tankless water heater is to assess your household's hot water demand. Consider the number of fixtures and appliances that will be in use simultaneously, as well as their individual flow rates. This will give you an idea of how much hot water your unit needs to provide at any given time.
Temperature Rise
The desired temperature rise also plays a vital role in determining the appropriate size for your electric tankless water heater. Different regions have different incoming water temperatures, and the greater the desired temperature rise, the larger the unit you will need to accommodate it. It's important to account for the coldest incoming water temperature in your area when making this calculation.
Consultation and Professional Guidance
To ensure accurate sizing and avoid any potential pitfalls, it's recommended to consult with a professional. A qualified technician can help assess your specific hot water needs, taking into account factors such as your household size, usage patterns, and any future expansions. Their expertise will ensure that you select the right size unit to meet your requirements effectively.
Choosing the right size for your electric tankless water heater is essential for maximizing energy efficiency and enjoying a reliable supply of hot water. By considering factors such as household hot water demand, temperature rise, and seeking professional guidance, you can make an informed decision and select a unit that perfectly suits your needs.
Understanding Tankless Water Heater Cost and Installation
When considering a tankless water heater for your home, it's important to understand the cost associated with the unit and the installation process. Tankless water heaters typically have higher upfront costs compared to traditional storage tank water heaters. The exact cost will depend on factors such as the size of the unit and the fuel type. Gas-powered tankless water heaters are generally more expensive than electric units. However, it's important to remember that the long-term energy savings can offset the initial investment.
Professional installation is highly recommended for tankless water heaters. While some homeowners may consider DIY installation, it's a complex process that requires advanced knowledge of plumbing and electrical work. Professional installation ensures that the unit is properly connected and installed according to local building codes. Additionally, hiring a professional reduces the risk of installation errors that could lead to performance issues or safety hazards.
It's also worth noting that professional installation may incur additional costs. The exact amount will depend on factors such as the complexity of the installation and the location of your home. However, the peace of mind and assurance of a properly installed tankless water heater make professional installation well worth the investment.
Gas vs. Electric Tankless Water Heaters
When it comes to choosing between gas and electric tankless water heaters, there are several factors to consider. Gas tankless water heaters are known for providing quicker heating and are generally more energy-efficient in the long term. However, they do require more maintenance and have higher installation costs compared to their electric counterparts. On the other hand, electric tankless water heaters are generally less expensive to install and can be placed in smaller spaces, making them a convenient option for homeowners with limited availability.
Gas tankless water heaters are well-suited for larger hot water demands and are often preferred in households with multiple bathrooms. Their higher heating capacity allows them to meet the needs of simultaneous hot water usage more effectively. Additionally, they offer greater energy efficiency, leading to potential long-term cost savings on utility bills.
Electric tankless water heaters, while not as powerful as gas models, are still highly efficient and can provide hot water on demand. They are a popular choice for smaller households or homes with lower hot water demands. The lower upfront installation costs and versatile placement options make them an attractive option for those on a budget or with limited space.
CriteriaGas Tankless Water HeatersElectric Tankless Water Heaters Heating Capacity High Lower Maintenance Regular maintenance required Minimal maintenance required Installation Cost Higher Lower Space Requirements Greater space needed Smaller footprint
"Gas tankless water heaters provide quicker heating and are more energy-efficient in the long term."
Which is Right for You?
Choosing between a gas and electric tankless water heater ultimately depends on your hot water needs, budget, and available space. If you have a larger household with multiple bathrooms and a higher hot water demand, a gas tankless water heater may be the better option to ensure an uninterrupted supply of hot water. However, if you have a smaller household, limited space, or are working within a tighter budget, an electric tankless water heater can still provide efficient and on-demand hot water.
Types of Tankless Water Heaters
There are several types of tankless water heaters available on the market, each catering to different needs and preferences. Let's explore the various options:
1. Gas Tankless Water Heaters
Gas tankless water heaters are known for their quick heating capabilities and are ideal for households with high hot water demands. They are powered by natural gas or propane and provide a continuous supply of hot water. Gas tankless water heaters require proper ventilation and a dedicated gas line for installation.
2. Electric Tankless Water Heaters
Electric tankless water heaters are popular for their affordability and compact design. They do not require a gas line, making them suitable for smaller spaces. Electric tankless water heaters are energy-efficient and provide hot water on demand without the need for a storage tank.
3. Indoor Tankless Water Heaters
Indoor tankless water heaters are designed to be installed indoors and are protected from external weather conditions. They are suitable for most households and provide hot water whenever needed. Indoor tankless water heaters require proper ventilation and may need additional venting systems for installation.
4. Outdoor Tankless Water Heaters
Outdoor tankless water heaters are specifically designed for outdoor installation. They are built to withstand mild weather conditions and do not require venting systems. Outdoor tankless water heaters are a great option for homes with limited indoor space or for locations where indoor installation is not feasible.
5. Condensing Tankless Water Heaters
Condensing tankless water heaters are highly energy-efficient and utilize advanced technology to capture and utilize heat from exhaust gases. They are designed to maximize energy savings and reduce greenhouse gas emissions. Condensing tankless water heaters have a higher initial cost but provide significant long-term energy savings.
6. Non-Condensing Tankless Water Heaters
Non-condensing tankless water heaters are a more traditional option and are typically less expensive compared to condensing models. They do not utilize the heat from exhaust gases, which results in lower energy efficiency. Non-condensing tankless water heaters require stainless steel flue pipes for exhaust ventilation.
When selecting a tankless water heater, consider factors such as your hot water needs, available space, and budget. Consult with a professional to determine the most suitable type and size of tankless water heater for your specific requirements.
Type Features Advantages Disadvantages Gas Tankless Water Heaters - Quick heating- Continuous hot water supply- Suitable for high-demand households - Energy-efficient- Reliable performance- Lower greenhouse gas emissions - Requires proper ventilation- Need for a dedicated gas line- Higher installation cost Electric Tankless Water Heaters - Compact design- No need for a gas line- Energy-efficient - Affordable- Easy installation- Suitable for smaller spaces - Lower flow rate compared to gas models- Dependence on electrical supply Indoor Tankless Water Heaters - Protected from external weather conditions- Suitable for most households - Efficient performance- Easy accessibility- Versatile installation options - Requires proper ventilation- May need additional venting systems Outdoor Tankless Water Heaters - Designed for outdoor installation- No venting systems required - Space-saving solution- Ideal for limited indoor space- Weather-resistant - Vulnerable to extreme weather conditions- Limited installation options Condensing Tankless Water Heaters - Utilizes exhaust gas heat- Maximized energy efficiency - Significant long-term energy savings- Environmentally friendly- Lower greenhouse gas emissions - Higher initial cost- Requires a drain line for condensate Non-Condensing Tankless Water Heaters - Traditional design- Lower upfront cost - Available at a lower price point- Simple installation process - Lower energy efficiency- May require stainless steel flue pipes
Factors to Consider When Buying a Tankless Water Heater
When choosing a tankless water heater, there are several important factors to consider. These include the size of the unit, the fuel type, the maintenance requirements, and whether you prefer DIY installation or professional installation.
Tankless Water Heater Size
The size of the tankless water heater is crucial in ensuring that it can meet your household's hot water demands. Consider factors such as the number of fixtures and appliances that will be used simultaneously. Determine the flow rates (GPM) of these fixtures and calculate the total hot water usage of your household. This will help you select a unit that can provide enough hot water without being oversized, which can lead to unnecessary energy consumption.
Fuel Type
Another important consideration is the fuel type of the tankless water heater. Electric tankless water heaters are generally less expensive to install and can be placed in smaller spaces. They are a suitable option for households with lower hot water demands. On the other hand, gas tankless water heaters are more expensive to install but provide quicker heating and are more energy-efficient in the long term. Consider your preferences, energy efficiency goals, and budget when deciding on the fuel type.
Maintenance
Maintenance requirements vary depending on the type of tankless water heater you choose. Electric tankless water heaters typically have lower maintenance needs compared to gas units. It's important to follow the manufacturer's guidelines for regular maintenance to ensure optimal performance and longevity of the unit. Consider the maintenance requirements and factor them into your decision-making process.
DIY vs. Professional Installation
Deciding whether to opt for DIY installation or professional installation is another factor to consider. Tankless water heater installation can be complex, and professional installation is recommended to ensure proper functionality and safety. However, if you have experience with plumbing and electrical work, and feel confident in your abilities, you may choose to install the unit yourself. Evaluate your skills and comfort level before making a decision.
Factors to Consider Tankless Water Heater Size Fuel Type Maintenance DIY vs. Professional Installation Consideration Determine hot water demands and select appropriate size Weigh the benefits and costs of electric vs. gas units Assess maintenance requirements and follow manufacturer's guidelines Evaluate skills and comfort level for installation Importance Crucial in ensuring sufficient hot water supply Affects energy efficiency and upfront costs Ensures optimal performance and longevity Professional installation recommended for safety Consider these factors to make an informed decision and select the right tankless water heater for your home. Choose a size that meets your hot water demands without wasting energy Select the fuel type based on your preferences, energy efficiency goals, and budget Follow maintenance requirements for optimal performance and longevity Evaluate your skills and comfort level for DIY installation or opt for professional installation
Top Tankless Water Heater Brands
When it comes to choosing a reliable and high-quality tankless water heater, there are several top brands that have established themselves as leaders in the industry. These brands offer a range of innovative and energy-efficient models to suit different household needs. Here are some of the top tankless water heater brands:
Rinnai
A household name in the tankless water heater market, Rinnai is known for its cutting-edge technology and durable products. With a focus on energy efficiency and performance, Rinnai offers a wide range of gas and electric tankless water heaters to suit various hot water demands. Their products are backed by extensive warranties, ensuring peace of mind for homeowners.
Rheem
Rheem is another reputable brand that offers a variety of tankless water heaters for residential use. With a strong emphasis on energy efficiency and reliability, Rheem's tankless water heaters are designed to provide continuous hot water while saving energy and reducing utility bills. Their products are known for their durability and long lifespan.
Stiebel Eltron
Stiebel Eltron is a German manufacturer that has been producing high-quality tankless water heaters for over 90 years. Their electric tankless water heaters are known for their precise temperature control and compact design, making them ideal for small spaces. Stiebel Eltron focuses on energy efficiency and utilizes advanced technology to deliver hot water on demand.
EcoSmart
EcoSmart is a leading brand in the tankless water heater industry, offering a wide selection of electric models. Their tankless water heaters are designed to be highly efficient and eco-friendly, reducing energy consumption and lowering carbon footprints. EcoSmart products are known for their ease of installation and affordability, making them a popular choice among homeowners.
Bosch
Bosch is a trusted name in the home appliance industry, and their tankless water heaters are no exception. Bosch offers a range of gas and electric tankless water heaters that prioritize energy efficiency and performance. With innovative features such as advanced temperature control and self-cleaning capabilities, Bosch tankless water heaters provide reliable and consistent hot water.
Brand Key Features Popular Models Rinnai Energy-efficient, durable, extensive warranties RUR Series, RL Series Rheem Energy-saving, reliable, long lifespan Prestige Series, Performance Plus Series Stiebel Eltron Precise temperature control, compact design Tempra Plus, Tempra Trend EcoSmart Eco-friendly, easy installation, affordability ECO Series, SMART Series Bosch Advanced temperature control, self-cleaning Greentherm 9000 Series, Tronic Series
These top tankless water heater brands have earned their reputation by consistently delivering reliable and efficient products. When choosing a tankless water heater for your home, consider factors such as your hot water demands, energy efficiency goals, and budget. Researching the offerings of these trusted brands can help you make an informed decision and find the perfect tankless water heater that meets your needs.
The Energy Efficiency of Tankless Water Heaters
Tankless water heaters are revolutionizing the way we heat water in our homes. With their energy-efficient design and on-demand hot water delivery, they offer significant advantages over traditional water heaters. By understanding the energy efficiency of tankless water heaters, you can make an informed decision that not only saves you money but also reduces your environmental impact.
Compared to traditional water heaters that constantly heat and store hot water in a tank, tankless water heaters only heat water when it's needed. This eliminates standby energy loss, where energy is wasted heating water that's not being used. As a result, tankless water heaters can be up to 34% more energy-efficient, leading to substantial cost savings on your utility bills.
Furthermore, tankless water heaters provide hot water on demand, so you never run out of hot water during those peak usage times. Traditional water heaters, on the other hand, can eventually deplete their stored hot water, leaving you with a cold shower or waiting for the tank to refill and reheat. The on-demand nature of tankless water heaters not only saves energy but also ensures a continuous supply of hot water whenever you need it.
"Tankless water heaters are a game-changer when it comes to energy efficiency and cost savings. By eliminating the standby heat loss associated with traditional water heaters and providing hot water on demand, they offer a sustainable and convenient solution for every household."
When comparing tankless water heaters to traditional water heaters, it's clear that tankless technology comes out on top in terms of energy efficiency and cost savings. With their compact design and superior performance, tankless water heaters are the future of hot water heating in our homes.
Tankless Water Heaters Traditional Water Heaters Energy Efficiency Up to 34% more efficient Less efficient due to standby heat loss Hot Water Supply Unlimited hot water on demand Limited supply, needs time to refill and reheat Space-Saving Compact design, saves space Requires large storage tank Lifespan Longer lifespa
