Tank vs. Tankless Water Heater: Why Installing a Tankless Water Heater Could Be Right for Your Home

If you’re a homeowner researching a new hot water tank installation while also looking for ways to improve energy efficiency and reducing your utility bill, you’ve probably come across the debate between traditional tank water heaters and their tankless counterparts. With energy-saving solutions becoming a priority for more homeowners, tankless water heater installations are quickly rising in popularity. But are they the right choice for your home?

This guide will provide a detailed comparison of tank and tankless water heater systems, focusing on the benefits of the more modern tankless water heaters. By the end, you’ll have a clear understanding of why so many in Chatham-Kent and beyond are making the switch.

Tank vs. Tankless Water Heater: A Quick Comparison

Before diving into the benefits of tankless water heaters, let’s take a look at how traditional tank water heaters and tankless systems stack up in terms of energy consumption, space requirements, and lifespan.

Energy Consumption

A tank water heater continuously keeps a reserve of 30-50 gallons of water heated, which consumes energy even if you’re not using hot water. This standby energy loss results in higher utility bills. The higher the gallons of water kept as a reserve, the higher the cost to keep it hot (but also, the more hot water you will have available at your disposal when you need it).

A tankless water heater, also known as an on-demand system, only heats water when it’s needed. This eliminates standby energy loss and can reduce energy consumption by 24-34% for homes using 41 gallons or less of hot water daily, according to the U.S. Department of Energy.

Space Requirements

Traditional water heaters can take up a considerable amount of floor space, often needing a dedicated area in your home or utility room. Don’t forget, they need to be able to hold over 30 gallons of water at a time given how they provide hot water for your home!

Tankless water heater units are compact and can be mounted on a wall, freeing up valuable storage space in your home.

Lifespan

A typical tank water heater has a lifespan of 8-12 years, after which it may require replacement. Tankless water heater models last significantly longer—usually around 20 years or more. While the upfront investment for a tankless water heater is higher, the lifespan is more than double that of a traditional water heater.

Key Benefits of a Tankless Water Heater

Switching to a tankless water heater provides homeowners with several advantages. Here’s why many are making the switch:

• Energy Efficiency. One of the biggest benefits is its energy-saving potential. Since it only heats water as needed, you’ll use less energy, leading to lower energy bills. It’s an excellent option for families prioritizing sustainability and cost savings. Lower utility bills also mean a reduced environmental impact – you can reduce your home’s carbon footprint in the Chatham-Kent community by switching to a tankless water heater,

• Endless Hot Water Supply. Since a tankless water heater heats water on demand, you’ll enjoy an uninterrupted flow of hot water, no matter how long your shower or how many loads of laundry you’re tackling. Do you run out of hot water after the 2nd or 3rd shower? This is one of the most common reasons we hear that Chatham-Kent homeowners are looking to upgrade to a tankless system.
• Space-Saving Design. Compared to the more bulky tank systems, a tankless water heater’s sleek design fits neatly on a wall, giving homeowners more usable space in their home.

Considerations for Tankless Water Heater Installation

While we have outlined the benefits of tankless water heaters, there are also a few factors to consider:

• Upfront Costs. Tankless water heaters have higher upfront installation costs compared to traditional systems.
• Water Demand / Household Size. It’s important to ensure the system can handle your household’s peak water demand, such as simultaneous showers or running multiple appliances. Since tankless systems heat water on-demand, there is no “stored” water, like a traditional system, which can create issues if you are trying to heat too much water at one time (like having multiple showers running at once). Larger homes or families may require multiple tankless units to meet their hot water needs efficiently.

Long-Term Savings with a Tankless Water Heater

Although tankless water heaters are more expensive upfront, their long-term savings make them a cost-effective solution over the long-term. Here’s how the numbers break down:

• Lower Energy Bills

Homeowners can typically save an average of $100 to $150 annually on energy costs, depending on water usage and energy rates.

• Extended Lifespan

With a lifespan twice as long as traditional heaters, you’ll save on replacement costs over time. Traditional tank systems last 8-12 years whereas tankless water heater systems can last around 20 years.

• Maintenance Costs

Fewer repair needs and lower maintenance requirements mean fewer unexpected expenses during the unit’s lifespan.

By factoring in these savings, a tankless water heater is often the more economical choice over the long-term.

Why is a Tankless Water Heater System More Expensive?

The higher upfront cost of a tankless water heater is due to its advanced technology and the complexity of installation. These systems require specialized installation, which should be done by HVAC professionals, and may involve upgrades to your home’s wiring or plumbing to ensure optimal performance. At Postma, we have installed hundreds (maybe thousands!) of tankless water heaters in the Chatham-Kent, Sarnia and Windsor area so our team is highly knowledgeable and skilled to ensure a perfect installation.

Renting vs. Owning Your Hot Water Tank?

Hot water tanks are one of the most commonly rented pieces of equipment on the market. As a result, it comes as no surprise that one of the most frequent questions we get from Chatham-Kent residents is “should I rent or buy?”. It is a great question and while there may be exceptions, we strongly believe that owning your water heater saves you significant money over the long-term. Especially with consumer financing programs becoming much more common and better allowing homeowners to finance the purchase of a new hot water tank, we believe the costs are now significantly lower to own rather than rent.

We have included a graphic below but you can also see a much more detailed article we wrote on the benefits of owning instead of renting your hot water tank.

Upgrade to a Tankless System Today

If you’re ready to take control of your home’s energy efficiency, it’s time to consider a tankless water heater. With energy savings, unlimited hot water, and lower overall costs in the long-term, you can see why tankless systems are becoming so popular in Chatham-Kent.

At Postma Heating and Cooling, we’re proud to serve the Chatham-Kent community with expert HVAC and water heater installation services. Our knowledgeable team is here to help you every step of the way—from consultation to installation.

Contact us today at 519-354-9491 or email us at contact@postma.ca to schedule your free in-home consultation about our water heater installation services. We do both tank and tankless water heater installations.