Hot water tanks 101

Nobody fully prepares you for the realities of home ownership, especially when unexpected disasters strike. We want to help you stop water loss in your home before it even starts.

Does your hot water tank need maintenance?

There are two simple steps you can take to evaluate if your tank needs maintenance.

Step 1: Perform a visual check

First, take into account how old your tank is. Most hot water tanks last approximately 10 to 15 years but can show signs of damage much earlier.

Here are some warning signs that your tank may need maintenance or an upgrade:

Rust-coloured water
Uneven temperatures
Valve or pipe leaks
Unwanted water around your tank
Unusual noises

If any of these signs are showing, take immediate action by connecting with an expert in your area.

Step 2: Have a contractor do an inspection

While you can do a visual check of your hot water tank, it doesn’t hurt to have an expert contractor inspect your tank as well, especially if you’re unsure of anything. They’ll be able to have a thorough look and identify anything you may have missed.

How to properly maintain your hot water tank

We recommend you have all your hot water tank maintenance performed by a qualified contractor who will ensure your tank is working efficiently and safely. Here are some of the things they’ll look at.

Valves and rods. Your contractor should inspect all the valves and rods on the system, especially the anode rod. This is a metal rod located inside your tank which is designed to corrode so your tank doesn’t.

Pressure and temperature. Your contractor should test the Temperature and Pressure Relief (TPR) valve to make sure everything is working properly. This valve is important as it releases water if the pressure or temperature in the tank exceeds a safe level.

Ventilation. During the inspection, they’ll verify that the space around your tank meets safety codes and is approved for proper airflow and ventilation.

Carbon monoxide. Gas heaters that are poorly vented, weren’t installed properly, or simply aren’t maintained are at risk for leaking carbon monoxide. Your contractor should perform an indoor air quality test to ensure your tank is venting properly and there aren’t any traces of carbon monoxide in the air.

Water quality. Your contractor will test the quality and temperature of your water to ensure the PH and bacteria levels are within a safe range.

Sediment buildup. Over time, calcium, magnesium and other minerals found in your water will form particles that settle at the bottom of your hot water tank. Your contractor will drain the sediment, preventing your tank from having performance issues and needing costly repairs.

Each manufacturer is different and the process can be tricky, so it’s important to have a qualified contractor inspect your tank every three years.

What are some hot water tank warning signs?

You don’t have enough hot water. This is one of the easiest issues to spot. If you don’t have enough hot water to shower or wash the dishes, it means your tank isn’t producing enough hot water (and it should be looked at).

Your water temperature isn’t consistent. One moment it’s hot, the other it’s cold. If your water temperature fluctuates, there may be something wrong.

Your water is discoloured or smells funny. If you notice rust or dark discolouration, and/or odd smells that aren’t consistent with what you’re used to, there may be bacteria or rust in your hot water tank. It may also be a signal that your anode rod needs to be replaced.

Your hot water tank is getting old. If your hot water tank is reaching the 10-year mark, it may be worth having an inspection. Even if you don’t notice any obvious warning signs, age alone can suggest that your hot water tank may not be performing at optimum levels.

Your tank is making odd noises. If you’re hearing loud cracks, pops, gurgles, whining, banging or boiling, something may be wrong with your tank. You’ll want to have it looked at immediately.

You notice reduced water flow. If you’re noticing less water flow or reduced pressure, it could mean there’s a buildup of sediment at the bottom of your heater. It’s a good idea to address this as soon as you notice it so it doesn’t escalate and get worse with time.

How much does it cost to replace a hot water tank?

On average, it costs from $600 to $1,800 to replace your average standard tank. If you’re looking to purchase a tankless heater, it’ll cost anywhere from $800 to $3,500. Gas water tanks cost about $100 to $700 more to install than electric. If you think a new hot water tank is in your future, it’s a good idea to budget so you can save accordingly. Many contractors also offer financing options.

Keep your head above water

Understanding how your hot water tank works and how to maintain it is an easy way to prevent water damage in your home. If you are ever unsure, connect with an expert in your area.

Reach out to your Wawanesa broker to review the water loss coverage in your policy.

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