Common Mistakes to Avoid During Tankless Water Heater Installation

Installing a tankless water heater can be a smart investment for homeowners looking to enjoy endless hot water, save space, and reduce energy bills. However, like any home improvement project, proper installation is crucial to ensure efficiency and longevity. Many people underestimate the complexities of tankless water heater installation, which can lead to costly repairs or poor system performance. In this blog, we’ll highlight some common mistakes to avoid during installation and share tips to get the best results.

1. Ignoring Professional Help

One of the biggest mistakes homeowners make is attempting a DIY tankless water heater installation without adequate knowledge. Tankless water heaters require precise plumbing connections, gas line adjustments, or electrical work, depending on the type of system you choose. A poorly installed unit can lead to leaks, insufficient hot water, or even dangerous conditions like carbon monoxide leaks.

Hiring a professional ensures that your installation is done according to local building codes and manufacturer guidelines. Licensed plumbers, especially those experienced with water filtration system installation, can also advise you on additional components like pre-filters that enhance water quality and protect your unit.

2. Not Considering Water Quality

Tankless water heaters are sensitive to water quality. Hard water can cause scale buildup, reducing the efficiency and lifespan of your system. Skipping a water softener or a water filtration system installation can lead to frequent maintenance issues and decreased performance.

Even if you live in an area with moderate water hardness, installing a proper filtration system can help remove sediments and minerals that might damage your heater over time. Neglecting this step is a common mistake that many homeowners regret.

3. Incorrect Sizing of the Unit

Choosing the wrong size tankless water heater is a common oversight. A unit that is too small will struggle to supply enough hot water during peak usage, while an oversized unit can waste energy and increase installation costs.

Before purchasing a unit, calculate your household’s hot water demand. Consider how many showers, sinks, and appliances might be used simultaneously. Professionals who provide water filtration system installation services often help homeowners evaluate water needs and recommend appropriately sized equipment.

4. Improper Venting

Venting is a critical part of tankless water heater installation. Gas-powered tankless heaters require proper venting to exhaust combustion gases safely. Many installation errors occur when homeowners or inexperienced installers choose the wrong venting material, make improper cuts, or fail to follow manufacturer guidelines.

Improper venting can lead to carbon monoxide buildup, system inefficiency, or even complete unit failure. Always follow local building codes and manufacturer instructions for venting, and consider hiring a certified technician to handle this aspect.

5. Ignoring Water Pressure Requirements

Tankless water heaters have specific water pressure requirements. Low water pressure can result in inconsistent hot water flow, while extremely high pressure may damage internal components. A professional installer will check your home’s water pressure and, if necessary, recommend a pressure regulator to maintain optimal performance.

This step is often overlooked during water filtration system installation as well. Ensuring proper pressure is vital for both your filtration system and tankless water heater to function efficiently.

6. Skipping Regular Maintenance Plans

Even with a perfectly installed tankless water heater, neglecting maintenance can lead to problems down the line. Descaling the system periodically, cleaning filters, and inspecting venting are all crucial steps. Homeowners who invest in a professional installation often benefit from scheduled maintenance programs, which extend the life of both the water heater and any installed water filtration system.

7. Incorrect Gas or Electrical Connections

Tankless water heaters that rely on gas or electricity require precise connections. Improper wiring or gas line installation can be dangerous and void your warranty. Always have a licensed professional handle these connections.

For electric models, ensure that your circuit can handle the load of the new unit. Overloading your home’s electrical system can cause tripped breakers or even electrical fires. Gas units, meanwhile, require careful attention to pipe sizing, shut-off valves, and leak testing.

8. Neglecting Bypass Valves

Bypass valves are crucial for maintenance and emergency situations. Skipping this during installation may make routine cleaning or repairs more complicated. Installing bypass valves allows you to isolate your tankless water heater without disrupting your entire water system, making future maintenance easier and safer.

9. Not Planning for Space and Accessibility

Tankless water heaters are compact, but they still require adequate clearance around the unit for proper ventilation and maintenance access. Installing the unit in a cramped or difficult-to-reach location can make future servicing challenging and potentially unsafe.

Planning for accessibility, especially when combined with a water filtration system installation, ensures that both systems can be maintained without extensive remodeling or costly adjustments later.

10. Choosing the Wrong Location

The placement of your tankless water heater matters. It should be located near where hot water is used most frequently, but also meet venting and safety requirements. Installing it in a location prone to freezing, excessive heat, or humidity can reduce efficiency and damage the unit.

PEX Pipe Installation for Homes

A typical plumbing system is made up of multiple components, but the primary building block is always the pipes. For modern, efficient plumbing, PEX pipe installation for homes is an excellent choice. PEX pipes are durable, flexible, and resistant to corrosion, ensuring that your water distribution and drainage systems operate reliably for years.

Working with our expert plumbers guarantees a reliable plumbing system that can serve your home without interruptions. We provide a full range of services, including PEX pipe installation for homes, piping repairs, and emergency plumbing solutions.

You Should Never Overlook Pipes That Need Repair

Typical signs that your piping system needs repair include corrosion, leaks, or unusual water stains near drains. If left untreated, even small issues can escalate into larger, more expensive problems. Whether it’s burst pipes, copper pinhole leaks, or other damages, timely maintenance and repair are essential.

With PEX pipe installation for homes, you can reduce the likelihood of leaks and water damage, since PEX is flexible and more resilient than traditional piping materials. Regular plumbing inspections, including video camera inspections of your pipes, allow us to catch issues early and prevent costly damage.

Prevention is always the best approach. Our team ensures that every PEX pipe installation for homes is performed with precision, safeguarding your plumbing system for years to come.

Conclusion

Tankless water heaters are a fantastic upgrade for any home, providing endless hot water, energy savings, and space efficiency. However, the benefits are only fully realized when the unit is installed correctly. Avoiding these common mistakes, ranging from ignoring water quality and improper venting to incorrect sizing and skipped maintenance, ensures your investment lasts for years.

If you’re considering a tankless water heater, remember that professional guidance is invaluable. Pairing your installation with a water filtration system installation can further protect your home and maximize performance. Proper planning, attention to detail, and professional installation will give you peace of mind and reliable hot water for years to come.