Why Can’T You Connect Pex Directly To A Water Heater?

Pex tubing is known to expand when exposed to heat, and this can pose a problem when it comes to connecting it to a water heater. The metal fittings on the water heater tend to be hotter than the water that flows through it, which can cause the pex tubing to fail if it is connected too closely to the water heater. This is an important consideration to keep in mind when installing pex tubing in your home or business.

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Can you connect PEX pipe directly to water heater?

According to the moderator, it is not recommended to connect PEX water piping directly to a gas or oil fired or tankless water heater. This is evident in the two photos provided, where red or blue PEX piping can be seen leading to the top of the water heater. It is important to follow proper installation guidelines to ensure the safety and efficiency of the water heating system.

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How do you run a PEX to a hot water heater?

To run a PEX to a hot water heater, you will need to first turn off the water supply and drain the pipes. Then, use a PEX cutter to cut the PEX tubing to the appropriate length. Next, use a crimping tool to attach a PEX fitting to the end of the tubing. Connect the other end of the fitting to the hot water heater using a threaded adapter.

Finally, turn the water supply back on and check for any leaks. It is important to follow all manufacturer instructions and local building codes when installing PEX tubing.

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Where should you not use PEX?

PEX plumbing has a limitation in terms of versatility due to its sensitivity to light. It is not recommended to use PEX pipes outside the house where they are directly exposed to UV rays for an extended period. The synthetic material used in making PEX pipes can gradually deteriorate due to the sun’s light.

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Can you use SharkBite fittings on hot water heater?

Yes, SharkBite fittings can be used on hot water heaters. These fittings are designed to work with both hot and cold water systems and are made from high-quality materials that can withstand high temperatures. However, it is important to note that SharkBite fittings should only be used on copper, CPVC, or PEX pipes and not on galvanized steel or iron pipes. Additionally, it is recommended to consult with a professional plumber before making any modifications to your hot water heater system to ensure proper installation and safety.

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What temperature can SharkBite fittings withstand?

SharkBite fittings are designed to withstand high pressure and temperature conditions. These fittings are certified to handle up to 200 PSI and 200°F (93°C). This means that they can be used in a variety of applications, including hot water systems and high-pressure plumbing systems. With SharkBite fittings, you can have peace of mind knowing that your plumbing system is built to last and can handle even the toughest conditions.

So whether you’re a professional plumber or a DIY enthusiast, SharkBite fittings are a reliable and durable choice for your plumbing needs.

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What temperature can PEX withstand?

PEX, or cross-linked polyethylene, is a popular material used in plumbing systems due to its flexibility and durability. PEX can withstand temperatures up to 200 degrees Fahrenheit, making it suitable for use in both hot and cold water applications. However, it is important to note that PEX should not be exposed to direct sunlight or UV radiation, as this can cause the material to degrade over time. Additionally, PEX should not be used for applications involving steam or high-pressure water, as it may not be able to withstand the extreme temperatures and pressure.

Overall, PEX is a reliable and versatile material for plumbing systems, but it is important to follow manufacturer guidelines and use it appropriately to ensure its longevity and effectiveness.

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Can I use blue PEX for hot water?

Color-coded PEX pipes are a convenient way to distinguish between hot and cold water supply lines. Red PEX pipes are typically used for hot water supply, while blue PEX pipes are used for cold water supply. However, it’s important to note that white PEX pipes can be used for either hot or cold water supply. It’s worth mentioning that these colors are not required by plumbing code to match the type of water supply.

So, while they may make it easier to identify which pipes are carrying hot or cold water, it’s not a requirement for installation.

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What causes PEX pipe to crack?

PEX, like many other plastics, has a tendency to become brittle when exposed to sunlight for extended periods of time. This can lead to cracking and other forms of damage when subjected to pressure. It is generally recommended to limit PEX exposure to sunlight to around 30 days to prevent this from happening.

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Is PEX A or B better?

In summary, PEX A is a better option when it comes to burst pressure resistance compared to PEX B. This is because PEX A’s flexible material can withstand up to 500 PSI, making it a dependable choice even in freezing temperatures. On the other hand, PEX B’s stiffer material may not perform as well in similar conditions. It’s important to consider these factors when choosing between the two types of PEX for your plumbing needs.

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Is PEX expansion or crimp better?

When it comes to PEX plumbing, there are two main methods for connecting pipes: crimping and expansion. While crimping equipment is generally less expensive than expansion kits, many plumbers still prefer to work with expansion due to its efficiency during installation. Expansion creates fewer leaks and is more durable against extreme cold and frozen pipes. Despite its higher cost and bulkier form, the benefits of expansion make it a popular choice among professionals in the plumbing industry.

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Can I use crimp rings on PEX A?

SharkBite PEX-A pipe and expansion fittings are a top-notch plumbing system that outperforms rigid pipe in many ways. The flexibility of this system is unmatched, making it easier to install and maneuver around obstacles. Additionally, the expansion fittings ensure that there are no missed connections, which can lead to leaks and other issues. This system is also compatible with a variety of fittings, including expansion, crimp, and push-to-connect, making it a versatile choice for any plumbing job.

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Is PEX a safe for drinking water?

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“`When it comes to choosing pipe materials for drinking water, plastic pipes like CPVC and PEX are a safe and reliable option. These materials have been extensively tested and approved by regulatory agencies for use in potable water systems. In fact, studies have shown that plastic pipes are less likely to leach harmful chemicals into the water compared to other materials like copper or lead. Additionally, plastic pipes are resistant to corrosion and have a longer lifespan, making them a cost-effective choice in the long run.

So if you’re looking for a safe and durable option for your drinking water system, consider using plastic pipes like CPVC or PEX.“`

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What is the drawback of PEX pipe?

Undoubtedly, PEX piping has its drawbacks. One of the major disadvantages is its vulnerability to strong UV rays, which can cause it to crack and break apart. As a result, it is not recommended for outdoor use. Moreover, plumbers need specialized tools to cut and join this type of modern pipe, which can be a challenge for those who are not familiar with it.

Lastly, disposing of used PEX pipe can be problematic, which is something to consider when choosing a piping material.

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Can bacteria grow in PEX?

Research has shown that biofilms can harbor a significant number of bacteria, with the highest concentration of bacteria found in the biofilm from PEX pipe at a temperature of 37°C. These bacteria can be cultivated and studied to better understand their behavior and potential impact on human health. It is important to be aware of the presence of biofilms and take appropriate measures to prevent their formation, as they can contribute to the spread of infections and other health issues.

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How long does PEX last?

PEX, or cross-linked polyethylene, is a popular material used in plumbing systems. The lifespan of PEX depends on various factors such as the quality of the material, installation, and maintenance. However, PEX is known to have a long lifespan, with some manufacturers claiming it can last up to 100 years. The actual lifespan of PEX can vary from 20 to 50 years, depending on the conditions it is exposed to.

PEX is resistant to corrosion, scale buildup, and freeze damage, which can extend its lifespan. Regular maintenance, such as checking for leaks and ensuring proper insulation, can also help prolong the life of PEX pipes. Overall, PEX is a durable and reliable material that can last for several decades

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Why don t plumbers use SharkBite?

Many plumbers are skeptical about the strength and durability of SharkBite fittings. They prefer to use soldering for their permanent plumbing projects. However, there is no concrete evidence to support their claims that these fittings are not strong enough. It’s important to note that SharkBite fittings have been tested and certified by various organizations, including the International Association of Plumbing and Mechanical Officials (IAPMO).

Additionally, these fittings are designed to withstand high pressure and temperature, making them a reliable option for plumbing installations.

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What temperature is a SharkBite ball valve rated for?

The temperature range for this product is quite specific. It can withstand a minimum working temperature of 33°F at 160 psi and a maximum working temperature of 200°F at 80 psi. This product is certified for use in both potable and radiant heating applications, making it a versatile option for various projects.

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Can you use shark bites on tankless water heater?

I absolutely adore all of the SharkBite products, but the push-to-connect fittings are my favorite. They were a lifesaver when I needed to install and maintain my tankless water heater. The isolation valves are particularly useful because they enable me to flush my heater without disrupting the supply to the rest of my shop. I highly recommend these fittings to anyone who needs a reliable and efficient plumbing solution.

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How long will SharkBite fittings last?

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“`If you’re looking for a reliable plumbing solution, SharkBite fittings are a great option. These fittings are designed to last for a long time, and SharkBite even offers a 25-year warranty when they’re used with SharkBite tubing. This means that you can trust these fittings to hold up over time and provide a secure connection for your plumbing needs. Whether you’re a homeowner or a professional plumber, SharkBite fittings are a smart choice for any project.


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