Understanding the 2026 commercial water heater standards can help building teams ask better questions when specifying new equipment. The key is to separate the federal manufacturing standards from the practical question of what system is best for a particular building.

What Changed in 2026?

The U.S. Department of Energy adopted amended energy conservation standards for commercial water heating equipment in a final rule published in 2023. According to DOE, compliance with the amended standards is required for covered commercial water heating equipment manufactured on and after October 6, 2026.

The rules apply to categories of commercial water heating equipment defined by federal regulations, including certain commercial storage water heaters, instantaneous water heaters, hot water supply boilers, and related equipment. Facility managers should verify the exact equipment category rather than assuming every water heater is governed in the same way.

DOE Also Announced Enforcement Discretion for Certain Gas-Fired Equipment

In 2026, DOE announced an enforcement policy affecting the thermal-efficiency standards for certain gas-fired commercial water heating equipment manufactured between October 6, 2026, and October 6, 2027. DOE stated that it would delay certain enforcement activity during that period.

That policy does not mean the 2026 standards disappeared, and it does not necessarily apply to every type of commercial water heater. Facility managers should review current manufacturer documentation and the latest official DOE guidance when making purchasing decisions.

For current federal information, see the DOE commercial water heating equipment page and the DOE commercial water heater enforcement policy.

Why This Matters When Replacing Equipment

A commercial water heater replacement is rarely a simple like-for-like decision. New equipment may have different venting, condensate, electrical, gas, drainage, space, and installation requirements. A facility should evaluate the complete system before ordering a replacement.

Waiting until an old unit fails can limit your choices because the priority becomes restoring hot water as quickly as possible. Planning ahead gives you more time to compare equipment, understand availability, and coordinate installation around operations.

Evaluate Demand, Not Just Existing Tank Size

Building usage changes. A restaurant may add seating, a medical facility may expand, or an industrial operation may increase production. The water heater that was appropriate years ago may no longer match current demand.

A professional assessment should consider peak hot water use, recovery requirements, operating schedule, incoming water temperature, storage needs, and redundancy.

Review the Mechanical Room

Facility managers should also consider access, clearances, drainage, venting, gas supply, electrical service, and future maintenance. Higher-efficiency equipment can have installation requirements that differ from older systems.

Addressing those details during planning helps reduce surprises on installation day.

Do Not Ignore an Aging Commercial Water Heater

Recurring repairs, leaking, corrosion, temperature fluctuations, unusual noises, and reduced recovery performance are signs that replacement planning should begin. A failing water heater can interrupt sanitation, food service, tenant operations, or production.

Putman & Son’s Plumbing provides commercial plumbing services throughout Metro Detroit and can help businesses evaluate plumbing and hot water system needs.

Plan Before the Next Equipment Failure

Federal equipment standards are only one part of a successful commercial water heater project. Equipment sizing, building needs, installation requirements, local codes, manufacturer specifications, and ongoing service all matter.

If your facility is planning a commercial water heater replacement or upgrade, call Putman & Son’s Plumbing at (248) 652-0990 to discuss the plumbing side of the project and build a plan before an emergency occurs.

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Before scheduling water heater installation in Metro Detroit, homeowners should understand a few important factors that can affect performance and long-term reliability.

Start With Your Household’s Hot Water Demand

A household of two may use hot water very differently from a family of five. Morning showers, laundry, dishwashing, large tubs, and simultaneous fixture use all affect demand.

Replacing an old unit with the exact same capacity may not be the best choice if your household has changed. A plumber can help evaluate usage and determine an appropriate system size.

Compare Tank and Tankless Options

Traditional tank water heaters store a set amount of heated water. Tankless units heat water as it is needed and can offer different space and operating characteristics.

Neither option is automatically right for every home. Fuel supply, electrical capacity, venting, water usage, installation cost, and available space all matter.

Putman & Son’s Plumbing offers water heater services and can help you compare options for your home.

Fuel Type Can Affect the Installation

Gas and electric water heaters have different installation requirements. Changing from one type to another may involve additional electrical, gas, venting, or plumbing work.

Do not assume a fuel conversion is a simple swap. The complete installation should be reviewed before equipment is selected.

Venting and Drainage Matter

Gas-fired equipment requires appropriate venting based on the type of unit. Water heaters may also need drain pans, relief valve discharge piping, condensate drainage, or other components depending on the system and installation location.

Professional installation helps ensure the new equipment is connected correctly and safely.

Think About Access and Future Service

A water heater needs enough room for installation, maintenance, and eventual replacement. Tight closets, finished basements, and mechanical rooms can complicate the job.

If the existing unit is difficult to access, discuss that before installation day so the plumber can plan appropriately.

Do Not Wait for Complete Failure

Warning signs such as leaking, rusty water, inconsistent temperatures, unusual noises, or reduced hot water capacity may indicate that your current unit is nearing the end of reliable service.

Planning replacement before the tank fails gives you more time to compare equipment and schedule installation instead of making a rushed decision during an emergency.

Schedule Professional Water Heater Installation

Putman & Son’s Plumbing has served Metro Detroit homeowners since 1985. Our team installs and services water heating systems for homes throughout Oakland, Macomb, and Wayne counties.

Call (248) 652-0990 or request service online to discuss water heater replacement and installation.

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Recognizing the warning signs early can help you schedule commercial water heater repair in Metro Detroit before the system creates major downtime.

Hot Water Runs Out Too Quickly

If your building used to meet demand but now runs short on hot water, the system may be losing capacity or performance. Sediment, worn components, control problems, or changes in demand may all contribute.

A commercial plumber can evaluate whether the issue can be repaired or whether the existing equipment is no longer sized appropriately for the property.

Water Temperature Becomes Inconsistent

Fluctuating temperatures can create problems for customers, employees, and equipment. In some businesses, reliable water temperature is also important for sanitation and operations.

Do not ignore repeated temperature swings. The cause could involve thermostats, heating components, mixing equipment, controls, or other parts of the hot water system.

Leaks or Moisture Around the Unit

Any unexplained water around a commercial water heater should be investigated. A leak may come from a fitting, valve, drain connection, or the tank itself.

Small leaks can damage flooring and nearby equipment. If the tank is deteriorating, the problem may worsen quickly.

Unusual Noises

Rumbling, banging, or popping sounds can indicate sediment buildup or another issue inside the system. Commercial units often work under heavy demand, which makes preventive maintenance especially important.

Unusual noises do not always mean the unit must be replaced, but they are a good reason to schedule an inspection.

Rusty or Discolored Hot Water

If discoloration appears only on the hot water side, the water heater or associated piping may be involved. Corrosion, sediment, or tank deterioration may be contributing to the problem.

Because water quality changes can have several causes, professional evaluation is the best way to determine the source.

The Equipment Is Aging and Repair Calls Are Increasing

A commercial water heater may still operate while becoming less reliable. If repairs are becoming frequent, recovery is slowing, or energy use appears to be increasing, it may be time to compare continued repair costs with replacement.

Putman & Son’s Plumbing provides commercial plumbing services throughout Metro Detroit. Our team can help businesses evaluate hot water problems and plan repairs or replacement around operations.

Do Not Let a Water Heater Failure Shut Down Your Business

Planned service is easier to manage than losing hot water during peak business hours. If your commercial hot water system is leaking, noisy, inconsistent, or no longer meeting demand, schedule service now.

Call Putman & Son’s Plumbing at (248) 652-0990 for commercial water heater service in Metro Detroit.

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Water Heater Repair vs. Replacement: How to Know What You Need

When your water heater stops working properly, one of the first questions is whether it can be repaired or if it should be replaced. The answer depends on the age of the unit, the type of problem, repair history, performance, and overall condition of the tank.

Understanding the difference can help you make a better decision for your home or business.

Signs Your Water Heater May Need Repair

Water heater repair may be possible when the issue involves a replaceable part or minor component. Common repairable problems may include thermostat issues, heating element problems, pilot light trouble, faulty valves, or certain connection leaks.

If the unit is newer and has generally worked well, repair may be the most practical solution.

Warning Signs That Should Not Be Ignored

Some symptoms mean your water heater needs professional attention soon. These include inconsistent hot water, strange popping or rumbling noises, rusty water, leaks near the tank, water that is too hot or too cold, or hot water running out faster than usual.

Even if the system is still working, these warning signs can point to wear, sediment buildup, or failing parts.

When Replacement May Be the Better Option

Replacement may make more sense if the water heater is older, leaking from the tank, needing frequent repairs, or no longer keeping up with demand. A tank leak is especially serious because it often means the tank itself is failing.

If repair costs are high and the unit is near the end of its expected service life, investing in a replacement may be more cost-effective than continuing to repair it.

Consider Hot Water Demand

Your household or business needs may have changed since the current water heater was installed. More people, more bathrooms, larger tubs, or higher hot water use can make an older or undersized unit feel unreliable.

A plumber can help determine whether your system is properly sized for your needs.

Tank and Tankless Options

When replacing a water heater, you may have the option to choose between a traditional tank system and a tankless water heater. Tankless systems heat water on demand, while tank systems store heated water for use.

Each option has benefits, and the best choice depends on your budget, space, hot water needs, and installation requirements.

Professional Inspection Matters

It is not always easy to tell whether repair or replacement is the right move without inspecting the system. A professional plumber can evaluate the tank, connections, pressure, age, and performance before making a recommendation.

Call Putman & Son’s Plumbing

If your water heater is leaking, noisy, unreliable, or not keeping up, Putman & Son’s Plumbing can help. We provide professional water heater repair and replacement service for Metro Detroit homes and businesses.

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A water heater warranty can provide valuable protection, but many homeowners do not fully understand what is covered until there is a problem. Warranty terms can vary by manufacturer, model, installation, and type of issue.

Before assuming a repair or replacement is covered, it is important to understand the basics.

What a Warranty May Cover

Many water heater warranties cover certain parts or tank defects for a specific period. Some warranties may include replacement parts if a covered component fails under normal use.

However, coverage depends on the warranty language. Labor, diagnosis, installation, code upgrades, disposal, or related damage may not always be included.

What May Void a Warranty?

Improper installation, lack of maintenance, unauthorized repairs, incorrect sizing, excessive pressure, or failure to follow manufacturer instructions may affect warranty coverage.

This is one reason professional installation matters. A properly installed water heater helps protect performance and may help preserve warranty eligibility.

Why Registration Matters

Some manufacturers require product registration to receive full warranty benefits. Homeowners should keep model numbers, serial numbers, receipts, and installation records in a safe place.

Warranty Does Not Mean Maintenance-Free

Even with warranty coverage, your water heater still needs attention. Sediment buildup, leaks, strange noises, and inconsistent hot water should be checked before problems become worse.

Call Putman & Son’s Plumbing

If your water heater is acting up or you have questions about repair versus replacement, Putman & Son’s Plumbing can help inspect the issue and explain your options.

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If your household seems to be running out of hot water more quickly than it used to, it is worth paying attention. This kind of change often happens gradually at first. Maybe the shower gets cold sooner, laundry routines become harder to manage, or back-to-back hot water use no longer works the way it once did.

When hot water runs out faster than before, the water heater may be giving you an early warning sign.

Sediment buildup may be reducing performance

One of the most common reasons for reduced hot water supply is sediment buildup inside the tank. Minerals settle over time and take up space that should be used for heated water. As that buildup grows, the system can become less efficient and deliver less usable hot water.

This problem is especially common in homes with harder water. If you suspect mineral-heavy water may be affecting your system, our article on hard water in Metro Detroit and whether you need a water softener or filter may help.

Your water heater may be aging

As water heaters get older, they often become less efficient and less dependable. Heating performance may decline, recovery time may get longer, and the unit may struggle to keep up with normal household demand.

If your system is aging and the hot water supply is becoming less reliable, it may be time to evaluate whether maintenance, repair, or replacement makes the most sense.

Household demand may have changed

Sometimes the problem is not a sudden failure but a change in usage. More people in the home, longer showers, added appliances, or different daily routines can all place more demand on the water heater than before.

A unit that once felt sufficient may no longer be the right fit for the household. In that case, the issue may be about sizing and performance rather than a single repair.

Efficiency loss can affect recovery time

If the water heater takes longer to heat a fresh supply of water, the household may notice hot water running out sooner between uses. This can happen because of sediment, wear, aging parts, or overall efficiency decline.

Even if the tank still produces hot water, slower recovery can make the system feel less dependable in everyday life.

Warning signs to watch for

Running out of hot water faster is often not the only sign. You may also notice:

Unusual sounds

Popping or rumbling noises can suggest sediment buildup.

Inconsistent water temperature

Temperature swings may indicate performance issues.

Higher energy use

A struggling system may work harder than it should.

Older system age

An aging unit may simply be reaching the end of its more dependable years.

For more on system wear, visit our related blog on premature water heater failure and why it happens.

Do not ignore the change

Hot water problems that seem minor at first often become more disruptive over time. The earlier the cause is identified, the easier it usually is to decide on the right next step.

Putman & Sons Plumbing helps homeowners evaluate water heater performance, identify why hot water is running out faster, and determine whether maintenance, repair, or replacement is the best solution for better everyday comfort.

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Premature water heater failure: why it happens

A water heater is one of the most important systems in your home, but many homeowners do not think much about it until the hot water becomes unreliable. When a unit fails earlier than expected, the cost and inconvenience can be frustrating. In many cases, premature water heater failure is not random. It is often the result of wear, water quality issues, neglected maintenance, or performance problems that built up over time.

Understanding why early failure happens can help you protect your current system and avoid surprises.

Sediment buildup inside the tank

One of the most common causes of early water heater failure is sediment buildup. Minerals in the water settle at the bottom of the tank over time, especially in homes with hard water. This layer of buildup makes it harder for the system to heat water efficiently and puts extra strain on the tank.

As sediment collects, the water heater may start making popping or rumbling sounds, produce less hot water, or run less efficiently. Eventually, that added stress can shorten the life of the unit.

Hard water problems

Hard water does not just affect faucets and showerheads. It can also reduce the lifespan of your water heater. Mineral-heavy water increases scale buildup, affects heating efficiency, and can accelerate wear on internal components.

If you live in Metro Detroit and notice hard water residue around your home, it may be worth considering whether your water quality is contributing to system wear.

Lack of maintenance

Like any major home system, a water heater benefits from regular maintenance. When routine service is skipped, small issues can go unnoticed until they become more serious. Sediment may build up, parts may wear down, and the unit may work harder than necessary.

Preventive maintenance can help identify performance changes earlier and extend the life of the system. Even if your unit still appears to be working, maintenance can reveal hidden issues before they lead to breakdowns.

Excessive water pressure

High water pressure can create stress throughout your plumbing system, including your water heater. When pressure remains too high, it can affect fittings, connections, valves, and internal system performance.

This is one reason pressure-related plumbing concerns should not be ignored. If your home has signs of pressure problems, it may be affecting more than one part of your system.

Age and normal wear

Even with good maintenance, water heaters do not last forever. As a system gets older, natural wear becomes a larger factor. If your water heater is aging and already showing signs of reduced performance, it may be nearing the point where repair is no longer the best long-term option.

Warning signs can include inconsistent water temperature, less available hot water, unusual noises, leaks near the base of the unit, or visible corrosion.

Installation and sizing issues

In some cases, premature problems can be tied to improper installation or a system that is not the right size for the household. A unit that is undersized may work harder than it should. Poor installation can also affect performance and reliability over time.

This is why professional evaluation and quality workmanship matter when a new water heater is installed.

Protect your hot water system

Premature water heater failure often starts with smaller issues that were easy to overlook at first. Sediment buildup, hard water, pressure concerns, and delayed maintenance can all shorten the life of the unit and reduce daily comfort.

Putman & Sons Plumbing helps homeowners identify hot water system issues, improve performance, and determine when repair or replacement makes the most sense. A proactive approach can help you get more reliable service and better long-term value from your system.

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A water heater pilot light going out is a common inconvenience, especially during colder months when gas systems work harder. Fortunately, relighting the pilot is usually a simple process—if done correctly and safely. Whether you have an older tank-style heater or a modern model with safety features, the following steps will help you restore hot water to your home quickly.

Why the Pilot Light Goes Out

Pilot lights may go out for several reasons:

• Drafts near the unit
• A dirty thermocouple
• Gas supply interruptions
• Faulty control valves
• Excess condensation in cold weather

Before relighting, always make sure there’s no lingering smell of gas—safety comes first.

Step 1: Locate the Instructions on the Tank

Most gas water heaters have a manufacturer’s label with relighting instructions. While the steps are similar across brands, details may vary slightly, so reviewing the label is always wise.

Step 2: Turn the Gas Control to “Off”

Turning the control to “Off” stops the flow of gas. Wait at least five minutes to allow any remaining gas to dissipate. This is a critical safety step.

Step 3: Switch to “Pilot” Mode

After waiting, turn the dial to “Pilot.” This setting allows a small amount of gas to flow to the pilot light, which is necessary for ignition.

Step 4: Press and Hold the Pilot Button

Pressing the pilot button primes the thermocouple and prepares the pilot for lighting. Some newer models use an electronic ignition rather than an open flame, but the principle is similar.

Step 5: Press the Igniter or Use a Long Lighter

Many water heaters include a built-in igniter, often a small red button. Press it repeatedly until the pilot flame appears.
If your heater does not have an igniter, carefully use a long lighter to ignite the pilot while holding the pilot button down.

Step 6: Hold the Button for 20–30 Seconds

Once the flame lights, continue holding the pilot button for 20 to 30 seconds to allow the thermocouple to heat up. This ensures the pilot stays lit after the button is released.

Step 7: Turn the Dial to “On”

After confirming the pilot stays lit, turn the dial back to “On.” The burner should ignite shortly afterward, and hot water will begin heating again.

Safety Tips

• Never relight if you smell gas—leave the home and call a professional.
• Keep flammable materials away from the unit.
• If the pilot repeatedly goes out, a component may be failing.

Final Thoughts

Relighting a water heater pilot light is a manageable task for many homeowners, but safety should always be the top priority. If you’re uncomfortable or if the pilot continues to go out, a plumber can inspect the system and address underlying issues like faulty thermocouples or gas line problems. Professional service ensures reliable hot water and peace of mind.

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Cold Weather Means More Demand on Your Water Heate

One of the most common winter plumbing issues homeowners face is water heater trouble. Cold temperatures lower incoming groundwater temperature, increase hot water usage, and place more strain on aging systems. Whether you have a traditional tank or a tankless model, winter is when your water heater is most likely to struggle.

Why Water Heaters Fail More Often in Winter

During winter, water entering the home can be up to 25 degrees colder than in summer. This requires your water heater to work significantly harder to raise the temperature to a usable level. Older units or neglected systems often can’t keep up.

Cold weather also leads to:

• Longer showers
• Higher laundry usage
• More dishwashing
• Guests and family visits during holidays

All of this increases hot water demand, which exposes weak components like heating elements, thermostats, and gas burners.

Signs Your Water Heater Is Struggling

Several symptoms appear before a water heater fails completely:

• Water takes longer to heat
• Running out of hot water faster
• Inconsistent temperature
• Rumbling or popping noises
• Rust-colored water
• Leaks around the base
• Higher energy bills

These signs should never be ignored during winter, when hot water is essential for comfort and sanitation.

How to Prevent Winter Water Heater Problems

1. Flush Sediment Buildup

Sediment naturally builds in water heaters, especially in areas with hard water. Flushing the tank once or twice a year improves efficiency dramatically.

2. Adjust the Temperature Safely

Raising the temperature slightly in winter helps the system keep up, but adjustments should be made safely to avoid scalding.

3. Insulate the Tank and Pipes

Insulating hot water pipes and the tank reduces heat loss, helping the heater work less intensely.

4. Inspect the Anode Rod

This rod prevents corrosion inside the tank. Replacing it extends water heater life.

5. Consider Upgrading an Aging System

If your heater is 10 to 12 years old, winter often exposes its limitations. Upgrading before failure protects your home from unexpected outages.

When to Call a Professional

Any signs of leaks, failure to heat, or loud noises should be handled by a professional plumber. A quick diagnosis can prevent bigger issues like tank failure or flooding.

Final Thoughts

Winter water heater problems are common, but with proper maintenance and early action, you can avoid cold showers and unexpected breakdowns. A professional inspection is one of the best investments you can make to stay comfortable all winter long.

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A reliable water heater is crucial during the winter months, but without proper maintenance, it can fail when you need it most. Here are key signs that your water heater may need servicing before the cold sets in.

Fluctuating Water Temperature

If your shower goes from hot to cold unexpectedly, sediment buildup in the tank could be affecting its efficiency. Flushing the tank helps remove debris and improve performance.

Rusty or Discolored Water

Rusty water from your hot tap can indicate corrosion inside your water heater tank, which may require replacing the anode rod or the entire unit if the damage is extensive.

Strange Noises

If your water heater makes popping or rumbling sounds, it could be due to hardened sediment at the bottom of the tank. This buildup forces your heater to work harder, increasing wear and tear.

Water Takes Too Long to Heat

A failing heating element or a buildup of minerals can reduce the efficiency of your water heater, making it take longer to provide hot water.

Leaks Around the Water Heater

Even a small leak can indicate a bigger issue, such as internal corrosion or a loose connection. Addressing leaks early can prevent costly water damage.

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