How to Keep Your Tankless Hot Water Heater Problem Free!

When it comes to ensuring consistent access to hot water, Edmonton homeowners are increasingly opting for tankless systems — and for good reason. Tankless water heaters provide endless hot water, occupy less space, and help lower energy costs. Just like any hard-working system in your home, however, they need regular care and maintenance to perform their best, especially when dealing with Alberta’s unique climate.

As Edmonton’s trusted source for all things HVAC, Weiss-Johnson understands the importance of regular maintenance in keeping your tankless water system problem-free. Here’s what every Edmonton homeowner should know about taking care of their tankless hot water heater!

Why Tankless Water Heaters Are So Popular in Alberta

Tankless systems heat water only as needed, making them significantly more energy efficient than traditional tanks that constantly reheat stored water. These modern units are a great fit for busy families or households with high water demands, as well as those who are tired of dealing with older systems that leave them constantly shivering mid shower.

Edmontonians love tankless systems for many reasons, with some of the top reasons being:

Cold winters: Even when outdoor temperatures drop to -30°C, tankless systems provide consistent hot water without wasting energy.
Smaller mechanical rooms: The compact design of tankless units frees up valuable home space.
Long-term efficiency: With proper care, they can last up to 20 years or more — significantly longer than traditional tanks.

Why Maintenance Matters — Especially in Edmonton

Edmonton’s water supply is known for being hard water, meaning it contains a higher level of calcium and magnesium minerals. Over time, these minerals can accumulate inside your tankless heater, forming a scale that clogs the internal heat exchanger.

If left unchecked, buildup can:

Reduce water flow and heating efficiency
Trigger error codes or system shutdowns
Shorten the overall lifespan of the unit

That’s why regular flushing is a must for Edmonton homeowners.

What a Professional Tankless Flush Does

During a maintenance flush, your technician will:

Isolate and flush the system.
Circulate a cleaning solution through the system to dissolve scale buildup.
Rinse and test the system to ensure full flow and heating power.

To keep your system in the best shape possible, we recommend a professional flush annually, and potentially even twice a year for homes that struggle with very hard water.

In addition to flushing your system, our technicians also inspect key components like:

The burner assembly
Air intake and exhaust vents
Water and gas connections
Sensors and safety valves

This means you’ll be able to catch any issues early on and take a proactive, rather than a reactive approach to maintenance–which can save you thousands by avoiding a major failure.

Signs Your Tankless System Needs Service

Common warning signs that your tank needs service include:

Fluctuating water temperatures or delayed hot water
Reduced water pressure
Unusual noises from the unit
Error codes displayed on your control panel

If you notice any of these issues, it’s time to schedule a maintenance visit before small problems turn into costly repairs.

Why Choose Weiss-Johnson for Tankless Maintenance

Weiss-Johnson has over 45 years of experience helping Edmonton homeowners stay comfortable all year-round. We specialize in servicing Navien tankless systems, one of the leading brands for energy efficiency and reliability.

Our friendly, certified technicians know Alberta homes and water systems inside and out. When you book with Weiss-Johnson, you get: