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Can You Install Your Hot Water Tank Yourself?

Is your hot water tank on its last legs? Considering pulling out your toolbox and installing a new one yourself? While it can be tempting to test out your DIY skills, water heater installations involve far more than just swapping out the tank. Below, let’s explore all about what water heater installations in Edmonton typically involve—and whether it’s a good idea in the first place. 

Here’s a spoiler: unless you have extensive specialized experience as a plumber, it’s not the best idea.

What’s Involved in a Water Heater Installation

When it comes to water heater installations, there’s quite a lot that YouTube videos and online tutorials skip over. As a result, it’s crucial for aspiring DIY-ers to understand what’s actually involved in completing an installation.

Shutting Off the System

  • Cut power at the breaker for electric units, or close the gas valve on gas units. Then shut off the water supply into the home at the water meter.

Removing the Current Heater (If Replacing)

  • Drain the tank fully through the bottom drain valve, disconnect the water lines and gas or electrical supply, and remove the venting (for gas models). Once that’s done, you can remove the older unit, which can be difficult to maneuver through basement stairwells and tight utility rooms.

Preparing Connections

  • Inspect the existing water lines, gas piping, and venting for corrosion or wear. Replace aged flex connectors and shutoff valves, if needed. Confirm the new unit’s clearance requirements match the space.

Connecting the New Unit

  • Set the new heater in place, attach the cold and hot water lines, connect the gas line or electrical supply, and reinstall the venting. 

Safety Testing

  • Refill the tank, pressurize the system, and check every connection for leaks. Verify that the temperature and pressure relief valves operate correctly.

Municipalities across Canada also require anyone completing plumbing to pull the necessary permits. These are essential to ensure the job complies with the appropriate safety and building codes. Edmonton is no exception, with anyone here looking to install a hot water heater must obtain a plumbing permit and a gas permit (for gas units).

Why It’s More Complex Than It Looks

The truth is, while homeowners can install their own water heaters, we don’t recommend it. Water heaters involve multiple intricate systems, which must be connected properly: gas lines, vents, water pressure, and more. Gas-powered water heaters are another story. These water heating systems are especially complex and require careful installation due to the complexity of gas lines and venting.

Removing the older unit is another step which also tends to prove more challenging than most expect. A standard 50-gallon tank still weighs about 150 lbs when empty, and its large size can make it awkward to remove without the right tools. 

Mistakes Can Become Bigger Issues

Installation becomes even more complicated in older homes that haven’t had an installation in some time. Older Edmonton homes may have galvanized steel water lines, undersized gas piping, or venting that doesn’t meet current code. Each of those issues can add hours to the install and may even create further problems if not addressed properly.

It’s also important to consider warranties for the completed work. Many manufacturers require that a certified plumber install the water heater; otherwise, the warranty is no longer valid. On the other hand, professionals stand behind their work, which is why reliable plumbing companies will also offer service warranties for water heater installation in Edmonton. 

Enjoy Hot Water Without the Hassle

Homeowners can do many tasks themselves, but when it comes to water heater installations and replacements, it’s best to stick to the pros. 


If you’re looking for a water heater installation in Edmonton, Weiss-Johnson is here to help. Get a free estimate today, from a team that you can trust. 

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