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What are some water heater installation concerns for homeowners?

Installing a gas water heater as a DIY homeowner can be risky if not done correctly. Some of the highest risk aspects associated with DIY installation of a gas water heater include:

  1. Gas Leaks: One of the most significant risks is the potential for gas leaks. If gas connections are not properly sealed or if there are any errors in the installation, it can lead to dangerous gas leaks, which can result in fire or explosions.
  2. Carbon Monoxide Poisoning: Poorly installed gas water heaters can produce carbon monoxide, a colorless, odorless gas that is toxic when inhaled. Improper venting or flue installation can lead to carbon monoxide leaks, endangering the health of occupants.
  3. Explosions and Fires: Gas leaks or improper connections can lead to explosions or fires. Gas water heaters use an open flame to heat water, and any ignition of gas fumes can lead to a dangerous situation.
  4. Water Damage: Faulty connections or poor installation can result in water leaks or flooding. This can damage the surrounding area, including walls, floors, and possessions.
  5. Incorrect Venting: Proper venting is crucial to carry exhaust gases safely out of the home. Incorrect venting can cause backdrafting, which can lead to the release of dangerous fumes into the living space.
  6. Code Violations: DIY installations may not meet local building codes or safety regulations, which can result in costly fines and legal issues.
  7. Warranty Voiding: Many manufacturers’ warranties require professional installation. If you install the water heater yourself and something goes wrong, you may void the warranty.
  8. Inadequate Sizing: Choosing the wrong size or capacity of water heater can lead to inefficiency, poor performance, and higher utility bills.
  9. Gas Line Errors: Working with gas lines requires expertise. Errors in gas line connections can lead to dangerous gas leaks.
  10. Pressure Relief Valve Issues: Improper installation or maintenance of the pressure relief valve can result in safety issues, as the valve is essential for releasing excess pressure and preventing explosions.
  11. Lack of Permits: DIY installations may not receive the necessary permits, which can lead to legal and safety issues.

To minimize these risks, it’s always advisable to hire a professional licensed plumber to handle the installation of a water heater. They have the expertise, tools, and knowledge to ensure that the installation is safe, code-compliant, and free from the risks associated with DIY installation. Additionally, professional installation often comes with warranties and peace of mind.

What are potential causes of smelly water?

A new water heater can potentially cause smelly water and a rotten egg smell in the hot water if there is an issue with the water quality of the water source.

Here are some reasons why you may experience a rotten egg smell in your hot water, especially after the installation of a new water heater:

  • Sulfates: If the water source contains high levels of sulfates, and or iron bacteria they can react with the anode rod in the water heater tank and produce hydrogen sulfide gas, which has a rotten egg smell.
  • Anode Rod: If the standard factory supplied anode rod is not the right type for your water source (water high in sulfides) it can cause the production of hydrogen sulfide gas, which has a rotten egg smell.

It’s important to note that these issues can also happen in older water heaters as well, and not only in new ones. To address this problem, you should have a licensed professional inspect the installation, complete a water quality test, check for the presence of sulfur bacteria or high levels of sulfates, and test the water source. They will also check the anode rod and the plumbing. Based on their findings, they will recommend the necessary steps to eliminate the smell and prevent it from reoccurring.

NOTE: Water quality is a fluid and dynamic state that changes continually. As water quality changes, the needed solutions must also change and adapt if perfect water quality is desired.

What type of anode rod is best for homes with well water?

When well water is present and/or iron-eating bacteria is present, an aluminum anode rod is typically considered to be a better option than a magnesium anode rod.

Here’s why an aluminum anode rod is considered to be a better option for homes with well water:

  • Well water: Well water often contains high levels of minerals and dissolved solids, such as iron, which can cause corrosion in a water heater tank. Aluminum anode rods are more resistant to corrosion in well water than magnesium anode rods, which means that they will last longer and need to be replaced less frequently.
  • Iron-eating bacteria: Iron-eating bacteria, also known as iron bacteria, can grow in well water and cause corrosion in a water heater tank. Aluminum anode rods are more resistant to corrosion caused by iron-eating bacteria than magnesium anode rods, which means that they will last longer and need to be replaced less frequently.
  • Corrosion rate: Aluminum anode rods have a lower corrosion rate than magnesium anode rods, which means that they will corrode slower in well water and water with iron-eating bacteria. This means that aluminum anode rods will last longer and need to be replaced less frequently than magnesium anode rods.

It’s important to note that even though aluminum anode rods are more resistant to corrosion in well water and water with iron-eating bacteria, it’s still important to regularly check and replace them to ensure that the water heater tank is protected. Additionally, you should consult with a plumber or water treatment professional to determine the best course of action for your specific well water or iron-eating bacteria situation.

What is the difference between magnesium and aluminum anode rods?

Magnesium and aluminum anode rods are both used in water heaters as a means of protecting the tank from corrosion. However, they have some important differences as explained here.

Here are some important differences to consider regarding magnesium and aluminum anode rods in your water heater:

  • Composition: Magnesium anode rods are made of magnesium alloy, while aluminum anode rods are made of aluminum alloy.
  • Sacrificial protection: Both magnesium and aluminum anode rods provide sacrificial protection, which means that they corrode instead of the tank, thus preventing the tank from rusting.
  • Corrosion rate: Magnesium anode rods have a higher corrosion rate than aluminum anode rods, which means that they will corrode faster. This means that magnesium anode rods need to be replaced more frequently than aluminum anode rods.
  • Water hardness: Magnesium anode rods are more effective in soft water, while aluminum anode rods are more effective in hard water. This is because magnesium anode rods will corrode faster in hard water, which means that they will need to be replaced more frequently.
  • Life expectancy: Magnesium anode rods typically have a shorter lifespan than aluminum anode rods, which means that they will need to be replaced more frequently.
  • Cost: Magnesium anode rods are typically less expensive than aluminum anode rods.

In summary, the main difference between magnesium and aluminum anode rods is that magnesium anode rods are more efficient in soft water and have a shorter lifespan, while aluminum anode rods are more efficient in hard water and have a longer lifespan. The choice of which one to use depends on the water hardness of the area and the budget.

What are some water heater concerns for homes with well water?

When you have well water, your water heater and other water appliances require extra care to ensure that they function properly and last as long as possible.

Here are a few key things for owners of homes with well water to keep in mind:

  • Water quality issues are a key factor, if not the most important factor in longevity of your water heater and other appliances that touch water. (Coffee maker, ice maker, dish washer, clothes washer, etc.)
  • Water testing: Well water can contain high levels of minerals, sulfides, and dissolved solids that can cause corrosion in water heaters and other appliances. It’s important to have the water tested regularly to ensure that it meets safe drinking water standards and to identify any potential issues that need to be addressed. Water quality changes as quickly as water flows.
  • Water treatment: Depending on the results of your water test, you may need to install a water treatment system to remove minerals and dissolved solids from your well water. This can include things like water softeners, iron filters, chlorine injection, and reverse osmosis systems.
  • Anode rod: An anode rod is a component in the water heater tank that helps to protect the tank from corrosion. It’s important to check the anode rod regularly and replace it if necessary, especially if you have well water, as it can be more corrosive than municipal water and can react with water heater components differently.
  • Flush the tank: It’s important to flush the water heater tank regularly to remove any sediment and debris that can accumulate in the tank. This can help to extend the life of the water heater and improve its efficiency. The hardness level of the water indicates the amount of sediment (crushed rock, sand, dirt, etc.) suspended in your water.
  • Regular maintenance: Regular maintenance is important to keep your water heater and other appliances running smoothly. This can include things like checking the temperature and pressure relief valves, and checking the pipes and connections for leaks.
  • Professional inspection: It’s a good idea to have a professional plumber inspect your water heater and other appliances on a regular basis, especially if you have well water, to check for any issues and ensure that everything is in good working order.

By following these best practices, you can help to ensure that your water heater and other appliances are in good working order and that they last as long as possible. More importantly, you can ensure your family has safe healthy water for all your needs.

6 Important Safety Facts Regarding Hot Water Scalds And Burn Injuries


Hot water from the home's faucets and sinks can cause serious injury to members of the family. Underestimating the risks posed by burns and scalding wounds only makes members of the household more vulnerable to injury. The following facts about scalds and burns can help illustrate the dangers of improperly heated water in the home.

1. Kids and seniors face the highest risk
Seniors and kids under the age of 5 are especially vulnerable to serious scald injury. A thinner dermis poses an extra threat of deeper burns in children, while limited flexibility can sometimes put seniors in danger with regards to nearby hot water.

2. Overheated water is a common problem at home
Ironically, many homeowners that balk at the idea of burn-related injuries in the home are at the greatest risk. Over 40 percent of inspected urban homes were found to have water heaters set at or above 140 degrees. Setting water temperatures to 120 degrees will increase safety and heating efficiency simultaneously.

3. Serious burns can occur in seconds
Burn wounds caused by a home's water supply can occur quickly. In fact, 140 degree water can cause a third-degree burn after just five seconds of exposure.

4. Cool water is better than ice for temporary treatment
Resist your instinct to ice a serious burn or scald, as treating the injury with ice actually risks worsening the burn. A wet compress or a flow of cool water will do the trick until you can schedule a medical visit.

5. Scalding injuries are mostly preventable
While hundreds of thousands of scald wounds occur each year, 75 percent of burn injuries in children are preventable. Families taking a proactive approach toward preventing burn injuries will see rapid results in the form of fewer burn accidents.

6. Going tankless can eliminate scald injuries
Often performing maintenance on an aging water heater simply increases risks of a scalding accident. Electric tankless water heaters have more precise, reliable heat controls to help prevent burn injuries.

SOURCE: https://webflow.com/design/hot-water-safety

What happens when a hot water heater explodes; why?

They get too hot, the water inside turns to steam. Steam takes up far more room than the water it once was, and the expansion rips the water heater apart. And make no mistake, there have been some spectacular water heater explosions. The MythBusters have addressed (if that’s the right word) this issue several times:

If this happens in your home you probably won’t show the same level of enthusiasm as these fellows, though. Here’s another less, ah, flamboyant link:

Water Heater Explosions – Should You Be Concerned? | Water Heater Hub

Naturally, there are safety devices to prevent this, mainly a thermostat to turn off the heat source (gas or electric) before things get anywhere near too hot. The next safety device is the T&P valve, the temperature and pressure valve, designed to open if the temperature or pressure gets too high. In order to make the video above, the MythBuster guys had to disable the thermostat and remove the T&P valve.

Of course, no homeowner would ever do that, but over time the T&P valve can get stuck, then fail when it is needed. It needs to be tested, maybe about once per year; if it keeps leaking after the test, have it replaced. There’s no end of websites discussing water heaters and required maintenance, just search “water heater t&p valve.” Here’s one chosen at random (NOT an endorsement!):

Water Heater Temperature & Pressure Relief Valve Discharge Pipe

Original reporting: https://www.quora.com/What-happens-when-a-hot-water-heater-explodes-why

How can you reduce the risk of Legionnaires’ disease in your home

Nine recently confirmed cases of Legionnaires’ disease in Hopkins, MN reminded me of an old blog post that I thought would make for a timely re-blog, along with some updated information. First, here’s the story about the recent cases in Hopkins: http://www.startribune.com/mdh-hopkins-warehouse-and-fountain-under-investigation-as-possible-source-of-legionnaires/393567731/. As mentioned in the story, Legionnaires’ disease resembles a severe case of pneumonia and is spread by inhaling the fine spray from water sources containing Legionella bacteria. In your home, the source of that bacteria could be your water heater, especially if you turn your water heater temperature down to the “vacation” setting when leaving for extended periods of time. The people who are most at risk for Legionnaires’ disease are those over 50, smokers, or those with certain medical conditions.

According to LegionellaPrevention.org, legionella bacteria can grow at temperatures from 68° F to 122° F, but the ideal growth range is between 95° F and 115° F. When it comes to preventing legionella bacteria growth, hot water is better. Legionella bacteria cannot multiply at temperatures above 122° F, and are killed within 32 minutes at 140° F. So crank up the water heater as high as it will go, right? No, of course not. That would create a scald hazard. Water heater manufacturers put a warning on water heaters saying the water temperature should not exceed 125° F to help prevent “severe burns instantly or death from scalds”. Their words, not mine.

So what’s the perfect temperature for your water heater?

Unfortunately, there’s no simple answer. The American Society of Sanitary Engineering Scald Awareness Task Group released a white paper many years ago on this topic, which essentially says that there is no perfect temperature to set your water heater to. Part of the reason is that traditional tank-style water heaters don’t keep the water in the tank at an exact temperature; there is a temperature “band” that tank water heaters maintain. At the beginning of a heating cycle, a water heater set to 120°-ish might start at 115° F, and might get up to 125° F at the end of its heating cycle. There’s more to it than just that, but the point is that water heaters do not produce constant temperatures.

If the water in a tank is kept below scalding temperatures, there is a potential for Legionella bacteria growth. Ideally, the temperature in a water heater tank should be cranked way up to 140° F or higher, but now we’re back to the scald hazard thing. One solution is to have a hot water tempering valve installed for the entire home.

This valve would be installed right at the hot water outlet of the water heater. It would allow the water heater to be cranked up to a scalding 140° F, which would be sufficient to kill bacteria and would extend the capacity of the hot water tank, while at the same time reducing the temperature of all of the hot water throughout the house. Click the following link for more information about these devices: http://media.wattswater.com/F-MXV.pdf . While these devices won’t guarantee safe water temperatures at every fixture, they’ll get you a lot closer.

If you want more hot water out of your water heater and you want to reduce the risk of Legionella bacteria growth, hire a plumber to install one of these mixing valves at your water heater and turn the temperature up on your water heater. I should also mention that point-of-use thermostatic mixing valves should ideally be installed at the faucets for the highest level of safety… but I’m pretty sure I’ve never seen a home fully outfitted with those.


What steps should I follow to safely shut off my water heater?
What are some water heater installation concerns for homeowners?
What are potential causes of smelly water?
What type of anode rod is best for homes with well water?
What is the difference between magnesium and aluminum anode rods?