Rinnai Tankless Water Heater Maintenance: Pro Secrets!

Unlock the Secrets to Rinnai Tankless Water Heater Longevity

Rinnai tankless water heaters have revolutionized how we experience hot water in our homes. Unlike traditional tank heaters that store and continuously heat water, Rinnai systems provide on-demand hot water, heating it only when you need it.

This innovative approach not only conserves energy but also ensures you never run out of hot water, even during peak demand.

Beyond the convenience and energy savings, Rinnai tankless water heaters offer a longer lifespan compared to their tank-based counterparts.

However, to truly maximize the lifespan and performance of your Rinnai system, regular maintenance is absolutely essential.

The Benefits of Rinnai Tankless Water Heaters

Rinnai’s popularity stems from a combination of factors that directly benefit homeowners.

Energy efficiency is a primary driver, as tankless systems eliminate the standby heat loss associated with traditional tanks.

This can translate into significant savings on your utility bills.

Furthermore, the on-demand hot water feature means you’ll never have to endure a cold shower again, even if multiple people are using hot water simultaneously.

The compact design of Rinnai units also saves space, making them ideal for homes with limited storage.

The Importance of Regular Maintenance

While Rinnai tankless water heaters are built to last, their longevity is directly tied to consistent and proper maintenance.

Neglecting maintenance can lead to a host of problems, including decreased efficiency, inconsistent water temperature, and even premature failure of the unit.

Regular maintenance helps to remove mineral buildup, flush out sediment, and ensure all components are functioning optimally.

By proactively addressing potential issues, you can significantly extend the lifespan of your Rinnai tankless water heater and avoid costly repairs down the road.

Unveiling the Secrets to Long-Lasting Performance

Want to unlock the secrets to keeping your Rinnai tankless water heater running like new?

By understanding the importance of regular maintenance and implementing a few simple strategies, you can ensure your system provides years of reliable, energy-efficient hot water.

The ongoing maintenance efforts we’ve just discussed are undeniably crucial, but to truly appreciate why they matter so much, it’s essential to understand the inner workings of your Rinnai tankless water heater. Knowing how it functions allows you to make informed decisions about its care and recognize potential issues before they escalate.

Understanding Your Rinnai Tankless Water Heater: How It Works

At the heart of the tankless revolution lies a fundamentally different approach to heating water. Unlike conventional tank heaters that maintain a constant reservoir of hot water, tankless systems operate on demand, providing hot water only when you need it. This efficiency hinges on a sophisticated yet relatively simple design.

The Tankless Water Heating Process

When you turn on a hot water tap, cold water travels through a pipe into your Rinnai tankless unit. A flow sensor detects the water’s movement, which then activates the unit’s high-powered burner.

This burner rapidly heats a heat exchanger, a crucial component designed for maximum heat transfer. As the water passes through the heat exchanger, it’s quickly heated to your desired temperature.

Once the tap is turned off, the flow sensor detects the cessation of water flow and shuts off the burner. This on-demand process eliminates the standby heat loss associated with traditional tank heaters, saving energy and reducing your utility bills.

Key Components: The Heat Exchanger

The heat exchanger is arguably the most critical component in a tankless water heater. It’s responsible for efficiently transferring heat from the burner to the water, ensuring a consistent and reliable supply of hot water.

Rinnai heat exchangers are typically made from copper or stainless steel, materials chosen for their excellent thermal conductivity and resistance to corrosion. However, even these durable materials are susceptible to scaling and mineral buildup over time, particularly in areas with hard water. This buildup reduces the efficiency of the heat exchanger and can eventually lead to its failure, highlighting the importance of regular flushing as preventative maintenance.

Why Rinnai Stands Out

Rinnai has established itself as a leading brand in the tankless water heater market for several compelling reasons. Their commitment to quality, innovation, and reliability has earned them a loyal customer base and a strong reputation within the industry.

Rinnai’s advanced technology, like their precise temperature control and recirculation options, sets them apart from competitors. Furthermore, Rinnai’s units are known for their durability and long lifespan when properly maintained. Their extensive network of certified technicians also provides homeowners with readily available support and service.

Finally, Rinnai’s dedication to energy efficiency and environmental responsibility appeals to homeowners seeking to reduce their carbon footprint and lower their utility bills. This commitment is reflected in their products’ high Energy Factor (EF) ratings and their focus on sustainable manufacturing practices.

The ongoing maintenance efforts we’ve just discussed are undeniably crucial, but to truly appreciate why they matter so much, it’s essential to understand the inner workings of your Rinnai tankless water heater. Knowing how it functions allows you to make informed decisions about its care and recognize potential issues before they escalate.

The Critical Importance of Regular Maintenance for Your Tankless Water Heater

Owning a Rinnai tankless water heater is an investment in efficiency and convenience.

However, like any sophisticated appliance, it requires regular attention to maintain peak performance and longevity.

The key to a long and healthy life for your tankless system lies in understanding the critical difference between preventative maintenance and reactive repairs.

Ignoring this distinction can lead to costly consequences.

Preventative Maintenance vs. Reactive Repairs: A Tale of Two Approaches

Preventative maintenance is a proactive strategy.

It involves scheduled tasks performed to keep your Rinnai tankless water heater operating optimally and to prevent potential problems before they arise.

Think of it as a regular check-up for your water heater, ensuring everything is running smoothly.

Reactive repairs, on the other hand, are the result of neglecting preventative care.

They involve fixing problems that have already developed, often leading to unexpected expenses and inconvenient disruptions in your hot water supply.

Waiting for something to break before taking action is always a riskier and often more expensive approach.

The Multifaceted Benefits of Regular Maintenance

The advantages of a consistent maintenance schedule extend far beyond simply avoiding breakdowns.

Regular care unlocks a range of benefits that protect your investment and enhance your daily life.

Improved Energy Efficiency

One of the most significant advantages of maintaining your Rinnai tankless water heater is improved energy efficiency.

Mineral buildup and sediment accumulation within the unit can hinder its ability to heat water efficiently.

This forces the system to work harder, consuming more energy and increasing your utility bills.

Regular flushing and cleaning remove these deposits, restoring the system to its optimal energy performance.

Extended Lifespan

Just like a well-maintained car, a regularly serviced Rinnai tankless water heater will last significantly longer.

By addressing minor issues proactively and preventing the accumulation of damaging minerals, you can extend the lifespan of your unit for years to come.

This translates to a greater return on your investment and avoids the premature cost of replacement.

Prevention of Costly Repairs

Preventative maintenance is an investment that pays for itself by avoiding costly repairs down the road.

Small problems, if left unaddressed, can quickly escalate into major issues requiring expensive parts and labor.

Regular inspections and timely maintenance can catch these problems early, preventing them from becoming major headaches.

Consistent Hot Water Supply

Perhaps the most immediately noticeable benefit of regular maintenance is a consistent hot water supply.

A well-maintained Rinnai tankless water heater will provide a steady stream of hot water whenever you need it, without fluctuations in temperature or unexpected cold showers.

This reliability enhances your comfort and convenience, ensuring a pleasant experience every time you turn on the tap.

The advantages of a consistent maintenance schedule extend far beyond simply avoiding breakdowns. Regular care unlocks significant benefits that contribute to the overall value and lifespan of your Rinnai tankless water heater. Now, let’s turn our attention to the specific tasks that form the cornerstone of a proactive maintenance approach, ensuring your system operates at its best for years to come.

Essential Maintenance Tasks for Your Rinnai Tankless Water Heater

To ensure your Rinnai tankless water heater remains in optimal condition, a few key maintenance tasks should be performed regularly. These tasks are essential for preserving the unit’s efficiency, extending its lifespan, and preventing costly repairs down the road.

Flushing the System

Flushing your Rinnai tankless water heater is arguably the most critical maintenance task you can perform.

It involves removing mineral buildup and sediment that accumulate over time within the unit’s heat exchanger and other components.

This buildup can significantly reduce the system’s efficiency, leading to higher energy bills and potentially causing premature failure.

Why Flushing is Necessary

Water, especially hard water, contains minerals like calcium and magnesium.

When heated, these minerals precipitate out of the water and form scale, clinging to the internal surfaces of your tankless water heater.

Sediment build-up also occurs as tiny particles in the water settle within the unit.

Over time, this accumulation can restrict water flow, impede heat transfer, and even damage sensitive components.

Flushing helps to dissolve and remove this mineral and sediment accumulation, restoring the system to its optimal operating condition.

Step-by-Step Guide to Flushing with Vinegar

The preferred method for flushing a Rinnai tankless water heater involves using vinegar, a mild acid that effectively dissolves mineral deposits.

Here’s a simplified guide:

1. Isolate the Unit: Turn off the power and gas supply to your Rinnai tankless water heater. Close the inlet and outlet water valves.
2. Connect the Flushing Kit: Attach hoses to the service ports (usually located at the bottom of the unit). Connect the other ends of the hoses to a bucket and a small submersible pump.
3. Circulate Vinegar: Fill the bucket with several gallons of white vinegar. Place the pump in the bucket and circulate the vinegar through the unit for at least one hour.
4. Rinse the System: After circulating the vinegar, disconnect the hoses and flush the system with clean water to remove any remaining vinegar and loosened sediment.
5. Restore Operation: Reconnect the water and gas supply, restore power, and test the unit to ensure proper operation.

Important Note: Always consult your Rinnai tankless water heater’s owner’s manual for specific instructions and safety precautions before performing any maintenance.

Flushing Frequency and Water Hardness

The frequency of flushing depends primarily on the water hardness in your area.

If you have hard water (high mineral content), you may need to flush your system every 6 to 12 months.

If you have soft water, flushing every 12 to 24 months may be sufficient.

You can test your water hardness using a simple test kit available at most hardware stores.

Addressing Hard Water Issues

As mentioned, water hardness poses a significant threat to the lifespan and efficiency of your Rinnai tankless water heater.

If you live in an area with hard water, taking steps to mitigate its effects is essential.

The Impact of Hard Water

Hard water accelerates the buildup of scale within the system, reducing its efficiency, increasing energy consumption, and potentially leading to premature failure of the heat exchanger.

Recommendations for Water Softening or Filtration

The most effective way to address hard water issues is to install a water softener for your entire home.

Water softeners remove calcium and magnesium ions from the water, preventing scale formation.

Alternatively, you can install a water filter specifically designed to reduce mineral content.

These filters are typically installed at the water inlet to your tankless water heater.

Checking and Cleaning the Air Filter (if applicable)

Some Rinnai tankless water heater models are equipped with an air filter. This filter prevents dust and debris from entering the unit and affecting its performance.

Check your owner’s manual to see if your model has an air filter. If so, inspect the filter regularly (every 3-6 months) and clean or replace it as needed.

A clogged air filter can restrict airflow, leading to overheating and reduced efficiency.

Inspecting the Unit for Leaks or Damage

Regularly inspect your Rinnai tankless water heater for any signs of leaks or damage.

Check the connections, pipes, and the unit itself for water stains, corrosion, or cracks.

Address any leaks promptly to prevent further damage and potential water waste.

If you notice any significant damage or are unsure about the cause of a leak, contact a qualified technician for assistance.

Essential maintenance keeps your Rinnai unit humming, but sometimes problems arise despite your best efforts. Recognizing these issues early can prevent minor inconveniences from escalating into major headaches. Let’s delve into the world of Rinnai troubleshooting, starting with the language your water heater speaks: error codes.

Troubleshooting Common Rinnai Tankless Water Heater Problems: Decoding Error Codes

Modern Rinnai tankless water heaters are equipped with sophisticated diagnostic systems that display error codes when a problem is detected. These codes are your first clue in understanding what’s gone wrong, and can often guide you to a simple fix. However, it’s crucial to know what each code means and, more importantly, when to call in the professionals.

Interpreting Error Codes

Error codes are alphanumeric messages displayed on your Rinnai unit’s control panel. They act as a guide, pointing towards a specific issue within the system. Ignoring these codes can lead to further damage, so understanding their meaning is essential.

Common Error Codes and Their Meanings

Here are some of the most frequent Rinnai error codes and their potential causes:

• Code 11: Indicates ignition failure. This could be due to a gas supply issue, a faulty igniter, or a problem with the flame sensor.
• Code 12: Signals a flame failure during operation. This often relates to gas pressure fluctuations, blocked venting, or problems with the combustion process.
• Code 14: Points to an overheating issue. Scale buildup in the heat exchanger is often the culprit, restricting water flow and causing the unit to overheat.
• Code 16: Suggests a problem with the exhaust or air intake system. Blocked vents or a malfunctioning fan can trigger this code.
• Code 31: Indicates a thermistor malfunction. The thermistor measures water temperature, and a faulty one will provide inaccurate readings.

Keep in mind that this is not an exhaustive list, and your specific Rinnai model may have unique error codes. Always consult your owner’s manual for a comprehensive list.

Basic Troubleshooting Steps for Each Code

While some error codes require professional intervention, others can be addressed with basic troubleshooting. Here are a few steps you can try:

• Code 11 (Ignition Failure): Ensure the gas supply is turned on and that other gas appliances are working. Try resetting the unit by turning it off and on.
• Code 14 (Overheating): If you are comfortable doing so, consider flushing the unit to remove mineral buildup. (Refer to the maintenance section for guidance.)
• Code 16 (Exhaust/Air Intake): Visually inspect the vents for any obstructions, such as leaves, debris, or snow. Clear any blockages you find.
• General Troubleshooting: Always start by resetting the unit. Many errors can be cleared with a simple reset.

However, if the error persists after attempting these basic steps, it’s time to call in a professional.

When to Contact a Professional Technician

While DIY troubleshooting can be helpful, some issues require the expertise of a qualified technician. Never attempt repairs you’re not comfortable with, especially when dealing with gas or electrical components. Here are some situations where professional help is essential:

• Persistent Error Codes: If an error code continues to appear after troubleshooting, it indicates a more complex problem.
• Gas Leaks: If you suspect a gas leak, evacuate the area immediately and contact your gas company and a qualified technician.
• Complex Component Failures: Problems with the heat exchanger, gas valve, or circuit board require specialized knowledge and tools.
• Unfamiliarity: If you’re unsure about any troubleshooting step or feel uncomfortable working on the unit, err on the side of caution and call a professional.

Recognizing Signs of Needed Repair

Even without error codes, your Rinnai tankless water heater may exhibit signs that indicate a need for repair. Being observant can help you catch problems early, potentially saving you money and preventing further damage.

Some common signs include:

• Unusual Noises: Banging, popping, or whistling sounds can indicate scale buildup, a malfunctioning pump, or other internal issues.
• Rust or Corrosion: Visible rust or corrosion on the unit or its connections can signal leaks or component deterioration.
• Water Leaks: Any water leaking from the unit is a serious issue and requires immediate attention.
• Inconsistent Hot Water: Hot water that fluctuates in temperature or suddenly turns cold can indicate a problem with the gas supply, flow sensor, or other components.

Water Temperature Fluctuations and Causes

One of the most common complaints with tankless water heaters is inconsistent water temperature. This can be caused by a variety of factors:

• Flow Rate Issues: Tankless water heaters require a minimum flow rate to activate the burner. If the flow rate is too low, the water may not heat properly.
• Scale Buildup: Mineral buildup in the heat exchanger can restrict water flow and reduce the unit’s heating capacity.
• Gas Pressure Fluctuations: Variations in gas pressure can affect the burner’s performance and cause temperature fluctuations.
• Incorrect Temperature Settings: Ensure the unit is set to the desired temperature and that the settings are appropriate for your needs.
• Multiple Fixtures Running Simultaneously: Tankless water heaters have a limited output capacity. Running multiple hot water fixtures at the same time can overwhelm the system and cause temperature drops.

By understanding these potential causes, you can troubleshoot temperature fluctuations and determine if professional assistance is needed. Remember, proactive observation and timely intervention are key to keeping your Rinnai tankless water heater running smoothly for years to come.

Essential maintenance keeps your Rinnai unit humming, but sometimes problems arise despite your best efforts. Recognizing these issues early can prevent minor inconveniences from escalating into major headaches. Let’s delve into the world of Rinnai troubleshooting, starting with the language your water heater speaks: error codes.

Error codes and DIY fixes can address many issues, but there comes a point where the complexity of the problem demands a professional’s touch. Knowing when to step back and call in an expert can save you time, money, and potential safety hazards.

When to Call a Professional Technician: Recognizing Complex Issues

While many Rinnai tankless water heater issues can be addressed with basic troubleshooting, some situations demand the expertise of a qualified professional. Attempting complex repairs yourself can not only void your warranty but also potentially lead to dangerous situations, especially when dealing with gas or electrical components.

The Benefits of Professional Expertise

Hiring a professional technician offers several key advantages:

• Accurate Diagnosis: Professionals possess the training and experience to accurately diagnose complex issues that may not be immediately apparent. They can identify the root cause of the problem, ensuring that the repair addresses the underlying issue and prevents recurrence.

• Specialized Tools and Knowledge: Rinnai tankless water heaters often require specialized tools and knowledge for proper repair. Professionals have access to these tools and are trained in their correct usage, ensuring that the repair is performed efficiently and effectively.

• Safety Assurance: Working with gas and electrical components can be dangerous without proper training. A qualified technician is trained to handle these components safely, minimizing the risk of accidents or injuries.

• Warranty Protection: Attempting to repair your Rinnai unit yourself may void your warranty. A professional technician can perform repairs while ensuring that your warranty remains valid.

Identifying Situations Requiring Professional Assistance

Certain situations clearly warrant a call to a professional technician. Here are some key indicators:

• Gas Leaks: If you suspect a gas leak, evacuate your home immediately and contact your gas company and a qualified Rinnai technician. Do not attempt to repair the leak yourself. Gas leaks pose a significant fire and explosion hazard.

• Major Component Failures: If a major component, such as the heat exchanger, control board, or gas valve, fails, professional repair is typically necessary. These components are complex and require specialized knowledge to repair or replace.

• Persistent Error Codes: If you’ve tried basic troubleshooting steps for an error code and the problem persists, it’s time to call a professional. This indicates a more complex issue that requires further investigation.

• Water Leaks Inside the Unit: Water leaks inside the unit can indicate a serious problem with internal components. A professional can diagnose the source of the leak and perform the necessary repairs.

• Unusual Noises: Loud banging, hissing, or other unusual noises coming from your Rinnai unit can indicate a mechanical problem that requires professional attention.

• Lack of Hot Water: If you are consistently experiencing a lack of hot water, despite the unit appearing to be functioning normally, there may be an underlying issue that requires professional diagnosis.

• Electrical Issues: Any electrical issues, such as tripped breakers or sparking, should be addressed by a qualified technician. Do not attempt to repair electrical components yourself.

Finding a Qualified Rinnai Technician

Choosing the right technician is crucial for ensuring a safe and effective repair. Here are some tips for finding a qualified Rinnai technician:

• Rinnai Authorized Service Provider: The best place to start is by searching for Rinnai Authorized Service Providers in your area. These technicians have received specialized training from Rinnai and are certified to work on their products. You can find a list of authorized providers on the Rinnai website.

• Licensing and Insurance: Ensure that the technician is properly licensed and insured. This protects you in case of accidents or damage during the repair process.

• Experience and Reputation: Look for a technician with experience working on Rinnai tankless water heaters. Read online reviews and ask for referrals from friends or family to gauge their reputation.

• Warranty Information: Ask the technician about their warranty on repairs. A reputable technician will stand behind their work and offer a warranty on parts and labor.

• Transparent Pricing: Obtain a written estimate before the repair begins. The estimate should clearly outline the cost of parts, labor, and any other associated fees.

By understanding when to call a professional and taking the time to find a qualified technician, you can ensure that your Rinnai tankless water heater receives the expert care it needs, keeping it running efficiently and safely for years to come.

Understanding Your Rinnai Warranty: Keeping Coverage Valid

Error codes and DIY fixes can address many issues, but there comes a point where the complexity of the problem demands a professional’s touch. Knowing when to step back and call in an expert can save you time, money, and potential safety hazards. But before incurring any expenses, it’s crucial to understand the protection you already have in place: your Rinnai warranty.

Understanding the ins and outs of your Rinnai warranty can save you from unexpected repair costs. It’s a valuable safety net, but only if you know how to use it and, more importantly, how to keep it valid.

Decoding Your Rinnai Warranty Coverage

Rinnai warranties typically cover defects in materials or workmanship. However, the specifics can vary depending on the model and the date of purchase.

It’s essential to review your warranty document to understand the exact terms and conditions.

Warranty periods can also differ, with some components, like the heat exchanger, potentially having longer coverage than others.

Pay close attention to the exclusions, which list situations where the warranty will not apply.

Maintaining Your Unit to Uphold Warranty Validity

Perhaps the most critical aspect of your Rinnai warranty is ensuring it remains valid. Neglecting essential maintenance is a common reason for warranty claims to be denied.

Rinnai, like most manufacturers, requires that you adhere to a regular maintenance schedule to keep your coverage intact.

This typically includes regular flushing to remove mineral buildup, as outlined earlier.

Using non-Rinnai parts or unqualified technicians for repairs can also void your warranty. Always use authorized service providers and genuine Rinnai parts.

Thoroughly document all maintenance and repairs. Keep receipts and service records as proof of upkeep. This is crucial if you ever need to make a warranty claim.

Where to Locate Your Warranty Information

Finding your warranty information should be one of the first things you do after purchasing your Rinnai tankless water heater.

The warranty document is usually included in the product packaging. If you can’t find it, check the Rinnai website.

Most manufacturers allow you to download a digital copy of the warranty information.

You’ll typically need your model number and serial number to access the correct document.

Keep a copy of your warranty readily accessible, whether physically or digitally.

Knowing your warranty terms and adhering to the maintenance requirements will give you peace of mind and protect your investment in your Rinnai tankless water heater.

Understanding the nuances of your Rinnai warranty helps protect you from unforeseen costs, but it’s only one piece of the puzzle. True peace of mind comes from proactively caring for your system. Let’s transition to the simple, yet impactful, maintenance tips every homeowner should know to maximize the lifespan and efficiency of their Rinnai tankless water heater.

Maintenance Tips for Homeowners: Simple Steps for Long-Term Health

While professional maintenance is essential, there are several steps homeowners can take to ensure the long-term health and optimal performance of their Rinnai tankless water heater.

These simple practices can significantly extend the lifespan of your unit and prevent minor issues from escalating into costly repairs.

Simple DIY Maintenance Tasks

Many essential maintenance tasks are well within the capabilities of the average homeowner. Regular attention to these areas can make a big difference.

• Check the Venting: Regularly inspect the venting for any obstructions or damage.

  Ensure that vents are clear of debris, snow, or anything else that could restrict airflow.

  Proper venting is crucial for safe and efficient operation.

• Monitor Water Quality: Keep an eye on your water quality.

  If you notice changes in taste, color, or odor, it could indicate issues that affect your tankless water heater.

  Consider a water test to assess hardness and mineral content.

• External Cleaning: Periodically wipe down the exterior of your unit with a damp cloth to remove dust and grime.

  This helps prevent buildup that could affect performance or aesthetics.

• Listen for Unusual Noises: Pay attention to any unusual noises coming from your unit during operation.

  Gurgling, banging, or hissing sounds could indicate trapped air, sediment buildup, or other problems that require attention.

• Keep the Area Clear: Maintain a clear space around the unit.
  Do not store items directly next to it, ensuring proper ventilation and easy access for maintenance.

The Importance of Regular Inspections

Regular visual inspections are a cornerstone of preventative maintenance.

These inspections allow you to identify potential problems early on, before they become major headaches.

• Look for Leaks: Carefully examine all connections, pipes, and fittings for any signs of leaks or moisture.

  Even small leaks can lead to significant water damage and corrosion over time.

• Check for Corrosion: Inspect the unit for any signs of corrosion or rust.

  Pay close attention to areas around connections and fittings, as these are particularly vulnerable.

• Examine the Burner: If possible, visually inspect the burner for any signs of soot buildup or damage.

  A clean burner is essential for efficient combustion and optimal performance.

• Review the Display Panel: Regularly check the display panel for any error codes or warning messages.

  Address these promptly, as they often indicate underlying issues that need attention.

Creating a Maintenance Schedule

Consistency is key when it comes to maintaining your Rinnai tankless water heater.

Developing a simple maintenance schedule can help you stay on track and ensure that essential tasks are performed regularly.

• Calendar Reminders: Set reminders on your calendar or phone to prompt you to perform regular maintenance tasks.
• Seasonal Checks: Schedule more thorough inspections and maintenance tasks on a seasonal basis, such as before the start of winter or summer.

• Record Keeping: Keep a log of all maintenance activities, including dates, tasks performed, and any issues identified.

  This record can be helpful for tracking trends and identifying potential problems early on.

By implementing these simple maintenance tips and establishing a regular inspection schedule, homeowners can significantly improve the long-term health and performance of their Rinnai tankless water heater. These proactive measures will not only extend the lifespan of your unit but also help you avoid costly repairs and ensure a consistent supply of hot water for years to come.

So there you have it – the inside scoop on keeping your rinnai tankless water heater maintenance running smoothly. Give these tips a try, and you’ll be enjoying endless hot water for, well, a long time to come!