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Enjoy endless hot water and significant energy savings. HVACCompaniesHub.com helps you find the right on-demand hot water solution by connecting you with experienced plumbers in UK. Here's why we're the best choice for your tankless water heater needs:: We take the stress out of finding the right HVAC services. Here's how:

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Tankless Water Heater Installation Glossary

Learn more about tankless water heater technology with this glossary of common terms.

Tankless Water Heater

A tankless water heater, also known as an on-demand water heater, heats water only when you need it, rather than storing hot water in a tank. They are more energy-efficient than traditional tank water heaters, although their upfront cost can be higher.

Tank Water Heater

A traditional water heater heats a stored volume of water to the set temperature. {These units are typically less expensive to purchase than tankless water heaters, but their operating costs are higher, because energy is constantly lost as heat escapes from the tank (standby heat loss)..

Condensing Tankless Water Heater

A type of tankless water heater that achieves high efficiency through exhaust heat recovery.

Non-Condensing Tankless Water Heater

A type of tankless water heater that vents exhaust gases directly outdoors, offering simpler installation than condensing models.

EF (Energy Factor)

A measure of a water heater's energy efficiency.. Higher EF ratings indicate greater efficiency.

Uniform Energy Factor (UEF)

A measure of how efficiently a water heater uses energy to heat water. Similar to EF, a higher UEF rating means lower operating costs.

Flow Rate

The amount of hot water a tankless water heater can produce per minute measured in gallons per minute (GPM). Consider the number of fixtures you typically use simultaneously to determine your flow rate needs.

Activation Flow Rate

The amount of water usage required to activate a tankless water heater. If the water flow is below the activation flow rate, the unit will not ignite and produce hot water.

Temperature Rise

The difference between the temperature of incoming water versus outgoing heated water. The temperature rise is an important consideration needed for your home or business.

Venting

Tankless water heaters require proper venting to exhaust combustion gases. The best approach depends on the heater type and the home layout. Consult with a professional regarding venting and system installation.

Gas Supply

Gas-fired tankless water heaters need a natural gas or propane supply. Upgrading to gas can offer greater efficiency.

Water Quality

The quality of your water can affect the performance and longevity of a tankless water heater. Hard water can cause mineral buildup and scale formation in the heat exchanger, reducing efficiency and potentially causing premature failure. A water softener can help to reduce mineral buildup in the unit.

Recirculation System

A hot water recirculation system keeps hot water constantly circulating through a dedicated loop of plumbing, This provides instant hot water, reduces water waste, and improves convenience. Consider this feature for greater convenience and efficiency.

Point-of-Use Water Heater

A small tankless water heater installed near a specific fixture, such as a sink or shower, to provide hot water instantly at that location. It's a localized solution for instant hot water.

Load Calculation

A professional assessment estimates the hot water demand of your home or business. It ensures that your new tankless water heater can adequately supply hot water when needed.

Frequently Asked Questions about Tankless Water Heater Installation

Planning to upgrade your water heating system? Get answers to common questions about tankless water heater installation, costs, benefits, and finding qualified installers near you.

What is a tankless water heater?

A tankless water heater, also known as an on-demand water heater, heats water only when you need it, providing instant hot water and increased energy efficiency. They heat water directly without a reservoir, saving space. Tankless systems offer significant advantages compared to tank-style units.

How much does a tankless water heater installation cost?

The cost of a tankless water heater installation varies depending on several factors, including: the unit's capacity, fuel type (gas or electric), and the complexity of the installation.. It's important to compare quotes before making a decision.

How long does it take to install a tankless water heater?

Installing a tankless water heater typically requires approximately [Time Range]. The actual installation time can vary, including the type of unit, the location of the installation, and whether any modifications to gas lines or venting are needed.. Your installer will be able to tell you after assessing your specific situation.

What are the benefits of a tankless water heater?

Tankless water heaters offer several benefits over traditional systems:
  • Endless Hot Water: Tankless units provide a continuous supply of hot water, eliminating the worry of running out of hot water during showers or other activities..
  • Energy Savings: Tankless water heaters are up to [percentage] more energy-efficient than storage tank models. This is because they only heat water when needed, reducing standby heat loss associated with traditional units.
  • Space Savings: Tankless systems are smaller and more compact than tank water heaters, freeing up valuable space in your home or business.
  • Longer Lifespan: Tankless water heaters have a lifespan of over 20 years, often two to three times longer.

Are tankless water heaters worth the cost?

While the upfront cost of a tankless water heater is higher than a traditional tank water heater, the long-term cost savings and benefits often make it a worthwhile investment. The return on investment will depend on your location, energy usage, and available incentives. Consult with an HVAC professional to assess your needs and determine if a tankless water heater is a good option for your home or business..

What size tankless water heater do I need?

Choosing the correct size tankless water heater is important for ensuring adequate hot water supply. Sizing depends on several factors:
  • Climate: Colder climates require a larger temperature rise, which can affect the sizing of the unit.
  • Flow Rate: The amount of hot water you need simultaneously (gallons per minute or GPM). A professional plumber can help calculate flow rate needs based on usage patterns.
  • Gas or Electric: Gas tankless water heaters generally have a higher flow rate than electric models.
  • Energy Efficiency: Higher-efficiency units may have a lower flow rate but save energy in the long run.
A professional HVAC technician can help you determine the right tankless water heater size for your needs.

What is the difference between a condensing and non-condensing tankless water heater?

The main difference between condensing and non-condensing tankless units is how they handle exhaust gases::
  • Condensing Tankless Water Heaters: These units capture exhaust heat and use it to preheat the incoming cold water, making them highly energy-efficient..
  • Non-Condensing Tankless Water Heaters: These units vent exhaust gases directly outdoors.. They are typically less expensive to purchase but less energy-efficient than condensing models.

What are the maintenance requirements for a tankless water heater?

Although tankless water heaters require less maintenance than traditional tank water heaters, regular maintenance is still important for efficiency and longevity . To maximize their lifespan, tankless systems need regular maintenance, which includes:
  • Flushing the system annually: Flushing removes sediment and mineral buildup, which can reduce efficiency and damage the heat exchanger.
  • Checking the water filter (if applicable): Some tankless water heaters have a filter that needs to be cleaned or replaced periodically.
  • Professional inspection: Schedule a professional inspection by a qualified technician every few years to ensure that all components are functioning correctly.
Proper maintenance can significantly extend the lifespan of your tankless system.

What are the disadvantages of a tankless water heater?

While tankless water heaters offer several benefits, they also have some disadvantages::
  • Higher Upfront Cost: Tankless water heaters are generally more expensive initially than traditional tank water heaters. However, the energy savings and extended lifespan of a tankless unit can offset the higher initial cost.
  • More Complex Installation: Tankless units often require modifications to gas lines or electrical circuits and usually involve professional expertise. Incorrect installation can damage the system or create safety hazards, so professional installation is highly recommended.
  • Potential Cold Water Sandwich: A small gap of cold water can sometimes flow out between uses of hot water. This can be addressed by installing a hot water recirculation pump.
  • Power Requirements: Electric tankless water heaters require a substantial amount of electricity, which may require an electrical service upgrade in some homes.
A thorough discussion with a plumber will help you make the right choice for your home or business.

Can a tankless water heater save me money?

Yes, a tankless water heater reduces energy usage on your energy bills over time by heating water only when needed. According to the Department of Energy, tankless water heaters are 24%–34% more energy efficient than conventional storage tank water heaters. . If you take frequent, long showers or have larger hot water requirements, you could save hundreds of dollars per year.

How do I choose the right tankless water heater?

Choosing the right tankless water heater involves considering various factors, such as:
  • Fuel Type (gas or electric): Gas-fired units are generally more powerful and efficient but require more upfront preparation for installation. Electric units are more versatile for installation, but they draw more power and are not as powerful.
  • Flow Rate (GPM): Choose a unit with a flow rate that can handle your peak hot water demands (the number of sinks, showers, etc. you use simultaneously).
  • Energy Factor (EF) or Uniform Energy Factor (UEF): Look for a higher EF or UEF rating for greater energy efficiency.
  • Size and Capacity: The physical dimensions of the system need to work for your home, along with the system's hot water production.
  • Features: Look for features that improve convenience and control hot water.
  • Budget: Tankless water heaters vary in price, so set a realistic budget before shopping.
A qualified plumbing professional can help you assess your needs and recommend the best tankless water heater for your home or business.

What is a condensing tankless water heater?

A condensing tankless water heater is a highly efficient type of tankless system. It re-uses waste heat to preheat the incoming cold water. By capturing heat that would otherwise be lost, these units are able to boost efficiency. Condensing tankless water heaters typically have higher Energy Factor (EF) ratings and can save you more money on your energy bills compared to non-condensing models.

Do tankless water heaters require venting?

Yes, all tankless water heaters require venting to exhaust combustion gases safely.. The type of venting required depends on the fuel type (gas or electric) and model of your tankless water heater:. Gas-fired systems need either direct venting (venting directly outdoors) or power venting (using a fan to assist venting). Electric tankless units may require simpler venting.. Discuss your venting options with your installer.

What is the difference between an electric and a gas tankless water heater?

Key differences to consider include:
  • Energy Efficiency: Gas units are generally more efficient. However, electric units are comparable for smaller applications.
  • Fuel source and availability:
    • Electric models rely on electricity, while gas models use either natural gas or propane. Check fuel prices to make an accurate comparison.
  • Installation Requirements: Electric tankless units may require an electrical circuit or panel upgrade. Gas tankless units require venting and gas line connections.
  • Flow Rate:
    • Gas tankless models offer higher flow rates. Electric tankless systems will have lower hot water output.
  • Upfront Costs: Electric tankless units tend to have lower upfront purchase and installation costs. However, consider the long-term savings from higher efficiency with gas-fired units.
Consult with an installer to determine the best fit.

What is a point-of-use tankless water heater?

A point-of-use (POU) tankless water heater is a small, electric tankless unit designed for a single outlet, providing hot water on demand only where it's needed. They are an ideal solution for applications where a long wait for hot water is common or where a dedicated hot water line is not feasible. Consider them as a convenient, supplemental solution.

What is a hot water recirculation system, and do I need one?

A hot water recirculation system keeps hot water circulating through your plumbing so you don't have to wait for hot water to reach the faucet.. It's particularly useful if your water heater is located far from your fixtures, as it eliminates the long wait and waste of cold water going down the drain. Although a recirculation system adds to the complexity and cost of a tankless water heater installation, it greatly improves convenience and reduces water waste.

Can a tankless water heater be installed outdoors?

Yes, some tankless water heaters are specifically designed for outdoor installation.. These units are typically weatherproof and have freeze protection features.. Check with the manufacturer's specifications to ensure your chosen unit is appropriate for outside installation..

How long does a tankless water heater last?

Tankless water heaters typically have a longer lifespan than traditional tank water heaters. Expect your tankless system to function for 20 years or more. A tankless water heater is built to last, reducing the need for frequent replacements.

Does a tankless water heater require electricity?

All tankless models need some electricity to power the internal components. Gas tankless water heaters use electricity to power the igniter, controls, and other electronic components.. The electricity usage of a tankless water heater is minimal compared to the gas it uses for heating (in gas models) or compared to the amount of electricity used by an electric tank water heater. .

Can a tankless water heater run out of hot water?

Tankless water heaters, in theory, have an endless supply of hot water because they heat the water on demand, unlike tank water heaters that can deplete their stored hot water.. However, some factors can limit output:
  • Flow rate:
    • A tankless unit has a maximum flow rate (gallons per minute) that it can heat. Simultaneous hot water use will affect temperature output.
  • Cold groundwater temperatures:
    • Very cold water makes it harder to get instant hot water. This is more common with gas tankless water heaters.
  • Gas supply (for gas units): If you have a gas tankless water heater, the unit's capacity can be limited by the available gas volume.
It is important to discuss these potential limits with a professional to select the right system.

How do I convert from a tank water heater to a tankless?

Converting from a tank water heater to a tankless water heater is a more complex plumbing project that is best handled by a qualified and licensed plumbing professional. Here are some of the steps involved in converting from a tank water heater to a tankless water heater::
  • Sizing and Selection: Determine the right size and fuel type of tankless unit for your home or commercial property.
  • Removal of Old Water Heater: Drain and disconnect the existing system.
  • Plumbing Modifications: Modifications to your plumbing may be necessary The existing plumbing configuration may not be optimal or compatible. This can involve installing new water lines and shut-off valves.
  • Gas Line Installation or Upgrade (if applicable): If switching to a gas tankless water heater, a new gas line might be necessary.
  • Electrical Work: If your chosen tankless model is electric, the plumber will need to install a dedicated electrical circuit for the unit. In some cases, an electrical panel upgrade may be required for electric units.
  • Venting: Install proper venting for the exhaust gases. The venting requirements vary depending on the type of unit being installed and local building codes..
  • Mounting: Securely mount the new tankless water heater on a wall or other suitable location..
  • Water and Gas Connections (if applicable): Connect water lines and gas
  • Testing and Commissioning: Test the unit to make sure everything is working as expected.
Due to the complexity of the process, it's highly recommended to hire a qualified plumber or HVAC contractor who has experience with tankless water heater installations.

What is the warranty on a tankless water heater?

Tankless water heater warranties can vary by manufacturer. Most manufacturers offer warranties on parts, and some installers also provide separate labor warranties The length of these coverage terms can also vary, so confirm details with the seller or manufacturer before buying. Typical warranties for tankless water heaters range from 5 to 15 years for the heat exchanger, with shorter warranties for other components.

Where is the best place to install a tankless water heater?

The best location for your tankless water heater varies based on individual circumstances, including:
  • Fuel type (gas or electric): Gas tankless units must be installed in locations with appropriate ventilation and where there is a gas hookup. Electric units are more flexible and can be installed almost anywhere there is an electrical connection and a water supply.
  • Climate: In cold climates, it's best to install the unit indoors to prevent freezing. . In warmer regions, an outdoor installation might be possible.
  • Proximity to fixtures: To minimize heat loss and get hot water faster, install the unit as close as possible to frequently used fixtures like showers or sinks. This is particularly true.
  • Venting: If your unit is gas-powered, venting access is crucial.
  • Space considerations: Tankless water heaters are compact, but you still need adequate space around the unit for installation and maintenance.
Ask a professional installer to evaluate your property's specific situation and suggest an ideal placement.

How do I find a qualified tankless water heater installer near me?

Finding a qualified tankless water heater installer is crucial for a successful and safe installation. HVACCompaniesHub.com specializes in connecting you with licensed and experienced plumbers in your area. We make it easy to find trusted professionals who can handle your tankless water heater project. Request free quotes and schedule consultations to discuss your needs and get the best price for your installation.

What is a tankless water heater?

A tankless water heater, also known as an on-demand water heater, heats water only when you need it, providing instant hot water and increased energy efficiency. They heat water directly without a reservoir, saving space. This reduces standby heat loss and provides an endless stream of hot water.

How much does a tankless water heater installation cost?

The cost of a tankless water heater installation varies depending on several factors, including: the unit's capacity, fuel type (gas or electric), and the complexity of the installation.. It's important to compare quotes before making a decision.

How long does it take to install a tankless water heater?

Installing a tankless water heater usually takes between a few hours and a full day. The actual installation time will depend on various factors, such as the complexity of the plumbing and electrical work. Your installer will be able to tell you after assessing your specific situation.

What are the benefits of a tankless water heater?

Tankless water heaters offer several benefits over traditional systems:
  • Endless Hot Water: Tankless units provide a continuous supply of hot water, offering convenience.
  • Energy Savings: Tankless water heaters are up to [percentage] more energy-efficient than storage tank models. This is because they only heat water when needed, reducing standby heat loss associated with traditional units.
  • Space Savings: Tankless systems are smaller and more compact than tank water heaters, freeing up valuable space in your home or business.
  • Longer Lifespan: Tankless water heaters typically last much longer than tank water heaters, often two to three times longer.

Are tankless water heaters worth the cost?

Tankless systems save on energy, last longer, and offer unlimited hot water, offsetting higher initial costs. Factors to consider include your current water heating costs, local utility rates, household size, and available rebates. Consult with an HVAC professional to assess your needs and determine if a tankless water heater is a good option for your home or business..

What size tankless water heater do I need?

To get the right size, you'll need to consider: Sizing depends on several factors:
  • Climate: Colder climates require a larger temperature rise, which can affect the sizing of the unit.
  • Flow Rate: The amount of hot water you need simultaneously (gallons per minute or GPM). A professional plumber can help calculate flow rate needs based on usage patterns.
  • Gas or Electric: Gas tankless water heaters generally have a higher flow rate than electric models.
  • Energy Efficiency: Higher-efficiency units may have a lower flow rate but save energy in the long run.
An HVAC technician can perform a load calculation to determine the appropriate size for your specific situation.

What is the difference between a condensing and non-condensing tankless water heater?

The main difference between condensing and non-condensing tankless units lies in their venting systems:
  • Condensing Tankless Water Heaters: These units extract heat from exhaust gasses to maximize efficiency and reduce heat loss.
  • Non-Condensing Tankless Water Heaters: These units do not reuse exhaust gasses. They are usually easier to install but less energy-efficient than condensing models.

What are the maintenance requirements for a tankless water heater?

While maintenance is less frequent than for standard water heaters, it is still important. Recommended maintenance tasks include::
  • Flushing the system annually: This process removes any mineral deposits and keeps the system working properly.
  • Checking the water filter (if applicable): Some tankless water heaters have a filter that needs to be cleaned or replaced as per the manufacturer's directions.
  • Professional inspection: Have a technician perform a checkup to ensure that all components are functioning correctly.
Proper maintenance can significantly extend the lifespan of your tankless system.

What are the disadvantages of a tankless water heater?

Here's a summary of potential drawbacks to consider:
  • Higher Upfront Cost: Tankless water heaters are typically more expensive initially than traditional tank water heaters. However, the energy savings and extended lifespan of a tankless unit can offset the higher initial cost.
  • More Complex Installation: Tankless units often require modifications to gas lines or electrical circuits and may need a dedicated gas line or a larger electrical circuit.. Incorrect installation can damage the system or create safety hazards, so professional installation is highly recommended.
  • Potential Cold Water Sandwich: With a tankless water heater, you might experience a brief period of cold water between bursts of hot water, especially if the unit is located far from the fixture. This can be mitigated by installing a recirculation system.
  • Power Requirements: Electric tankless water heaters require larger electrical connections, which may require an electrical service upgrade in some homes.
A thorough discussion with a plumber will help you make the right choice for your home or business.

Can a tankless water heater save me money?

Yes, a tankless water heater can save you money on your energy bills in the long run by reducing or eliminating standby heat loss. Because it only heats the water you use immediately, a tankless system minimizes heat and energy loss compared to constantly reheating a stored volume of water. If you take frequent, long showers or have larger hot water requirements, you could save hundreds of dollars per year.

How do I choose the right tankless water heater?

Deciding on which system to install involves balancing various needs, such as:
  • Fuel Type (gas or electric): Gas-fired units are generally more powerful and efficient but require proper venting and gas line connections. Electric units are more versatile for installation, but they may necessitate upgrades to your electrical system and are not as powerful.
  • Flow Rate (GPM): Choose a unit with a flow rate that can handle your peak hot water demands (the number of fixtures you use simultaneously).
  • Energy Factor (EF) or Uniform Energy Factor (UEF): Look for a higher EF or UEF rating for greater energy efficiency.
  • Size and Capacity: The size of the unit should be appropriate for your space and hot water needs..
  • Features: Look for features that improve convenience and control hot water.
  • Budget: Tankless water heaters vary in price, so set a realistic budget before shopping.
Find qualified tankless water heater installers on HVACCompaniesHub.com.

What is a condensing tankless water heater?

A condensing tankless water heater is a highly efficient type of tankless water heater. It re-uses waste heat to preheat the incoming cold water. By capturing heat that would otherwise be lost, these units are able to boost efficiency. Condensing units are more efficient than non-condensing options but often require slightly more complex installation due to additional venting needs.

Do tankless water heaters require venting?

Yes, all tankless water heaters require venting to exhaust combustion gases safely.. The type of venting required depends on the fuel type (gas or electric) and model of your tankless water heater:. Gas-fired systems need a vent pipe. A qualified technician will determine the appropriate venting method for your installation.

What is the difference between an electric and a gas tankless water heater?

Choosing between an electric or gas tankless water heater will depend on several factors, including:
  • Energy Efficiency: Gas tankless water heaters tend to have higher energy factors (EF) than electric, making them more efficient. Electric tankless units can be very efficient in mild climates or for small point-of-use applications.
  • Fuel source and availability:
    • Electric models rely on electricity, while gas models use either natural gas or propane. Check fuel prices to make an accurate comparison.
  • Installation Requirements: Electric tankless units may require an electrical circuit or panel upgrade. Gas tankless units require venting and gas line connections.
  • Flow Rate:
    • Gas tankless models offer higher flow rates. Electric tankless systems will have lower hot water output.
  • Upfront Costs: Electric units are generally cheaper to purchase and install. However, consider the long-term savings from higher efficiency with gas-fired units.
Consult with an installer to determine the best fit.

What is a point-of-use tankless water heater?

A point-of-use (POU) tankless water heater is a small, electric tankless unit installed near a specific fixture, such as a sink or shower, rather than centrally. . They are an ideal solution for applications where a long wait for hot water is common or where a dedicated hot water line is not feasible. They are also useful for supplementing a central water heating system or in situations where a whole-house tankless system is not practical.

What is a hot water recirculation system, and do I need one?

A hot water recirculation system provides instant hot water at your fixtures. It's particularly useful if your water heater is located far from your fixtures, as it eliminates the long wait and waste of cold water going down the drain. It uses a pump to circulate water and can be controlled by a timer or a sensor.

Can a tankless water heater be installed outdoors?

Outdoor tankless units are available, designed to withstand exposure to elements. Outdoor installations save valuable indoor space. It is important to choose a model that is rated for outdoor use and have it installed by a qualified technician.

How long does a tankless water heater last?

Tankless water heaters are more durable. Expect your tankless system to function for over two decades. A tankless water heater is built to last, reducing the need for frequent replacements.

Does a tankless water heater require electricity?

All tankless models need some electricity to power the internal components. Gas tankless water heaters use electricity to power the igniter, controls, and other electronic components.. The electricity usage of a tankless water heater is minimal compared to the gas it uses for heating (in gas models) or compared to the amount of electricity used by an electric tank water heater. .

Can a tankless water heater run out of hot water?

Tankless water heaters, in theory, have an endless supply of hot water because they heat the water on demand, unlike tank water heaters that can deplete their stored hot water.. However, there are some practical limitations::
  • Flow rate:
    • A tankless unit has a maximum flow rate (gallons per minute) that it can heat. Simultaneous hot water use will affect temperature output.
  • Cold groundwater temperatures:
    • In extremely cold climates, the incoming groundwater temperature can be so low that it limits the tankless water heater's ability to raise the water temperature to the desired level, especially at higher flow rates. This is more common with gas tankless water heaters.
  • Gas supply (for gas units): If you have a gas tankless water heater, the unit's capacity can be limited by the available gas volume.
Choosing the right size and type of tankless water heater, as well as having a qualified plumber perform the installation, will help to avoid these potential issues.

How do I convert from a tank water heater to a tankless?

Converting from a tank water heater to a tankless water heater is a more complex plumbing project that is best handled by a qualified and licensed plumbing professional. Here are some of the steps involved in converting from a tank water heater to a tankless water heater::
  • Sizing and Selection: Determine the right size and fuel type of tankless unit based on your household or business needs, available space, fuel type, and budget..
  • Removal of Old Water Heater: Drain and disconnect the old tank water heater.
  • Plumbing Modifications: The plumber may need to reroute or install new pipes The existing plumbing configuration may not be optimal or compatible. This can involve installing new plumbing.
  • Gas Line Installation or Upgrade (if applicable): If switching to a gas tankless water heater, a new gas line might be necessary.
  • Electrical Work: Electrical adjustments may also be necessary for certain types of gas tankless water heaters. Electric units can sometimes require significant electrical work.
  • Venting: Venting is essential for safety Your installer will determine the best venting system.
  • Mounting: Securely mount the new tankless water heater on a wall or other suitable location..
  • Water and Gas Connections (if applicable): Connect water lines and gas
  • Testing and Commissioning: Test the unit to ensure it is functioning correctly and safely..
Due to the complexity of the process, it's highly recommended to hire a qualified plumber or HVAC contractor who has experience with tankless water heater installations.

What is the warranty on a tankless water heater?

Tankless water heater warranties differ by manufacturer. Look for units with good warranty coverage, as this will protect your investment in case of defects or premature failure. The length of these coverage terms can also vary, so confirm details with the seller or manufacturer before buying. Typical warranties for tankless water heaters range from 5 to 15 years for the heat exchanger, with shorter warranties for other components.

Where is the best place to install a tankless water heater?

The best location for your tankless water heater varies based on individual circumstances, including:
  • Fuel type (gas or electric): Gas tankless units must be installed in locations with appropriate ventilation and where there is a gas hookup. Electric units are more flexible and can be installed almost anywhere there is an electrical connection and a water supply.
  • Climate: In cold climates, it's best to install the unit indoors to prevent freezing. . In warmer regions, an outdoor installation might be possible.
  • Proximity to fixtures: Reduce wait times for hot water by placing the unit closer to bathrooms and kitchens. This is especially important if you don't have a hot water recirculation system..
  • Venting: Ensure there is a clear path to vent exhaust gases safely outdoors.
  • Space considerations: Tankless water heaters are compact, but you still need adequate space around the unit for installation and maintenance.
Ask a professional installer to evaluate your property's specific situation and suggest an ideal placement.

How do I find a qualified tankless water heater installer near me?

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