If you live in Ontario and need a new hot water heater, you have two main options: tankless water heaters or traditional water heaters. Many homeowners and landlords in Kitchener-Waterloo, Guelph, and Cambridge are searching for the best tankless water heaters.
Finding the answer depends on how much hot water you use, your budget, and how long you plan to stay in your home. In this guide, our professionals at Don’s Heating and Cooling break down this topic in simple terms so you can choose what works best for you based on your unique needs in your house.
1. Cost: Tankless vs Traditional Water Heater Prices
Traditional water heaters (also called storage tank water heaters) are cheaper. Most cost between $500 and $1,500. Installing one usually costs another $300 to \$700. It’s a quick job for a plumber or HVAC contractor.
Tankless water heaters (also called on-demand water heaters) cost more. Prices range from $1,000 to $3,000, and installation can be tricky. You might need new gas lines, vents, or electric upgrades. That can raise the total cost.
But tankless units need less energy, which saves you money over time. If you’re looking for an energy-saving tankless water heater, this option can help reduce monthly utility bills, especially when combined with Ontario rebates.
2. Energy Efficiency and Environmental Impact
Tankless water heaters Ontario homes use are more efficient. They only heat water when someone turns on a tap. This means no wasted energy from storing hot water in a tank.
Traditional heaters keep water hot 24/7, even when no one is home. This can cause energy loss and higher bills in the long run.
If you compare gas vs electric water heaters, you will realize that the gas water heater is cheaper but creates more emissions; on the other hand, the electric is cleaner but can cost more. If you want an energy-efficient water heater, a tankless electric unit may be a good choice, especially since Ontario’s power grid is becoming cleaner.
3. Installation and Maintenance Needs
It’s easier to install a traditional water heater in general because most homes already have the setup needed, and installation takes less time compared to tankless ones.
Tankless systems need more work. Some homes require upgrades before installation. That might include gas lines, electrical wiring, or special vents, so having a licensed HVAC company by your side is a must to ensure everything is being handled smoothly.
It’s necessary to know that both types need yearly maintenance. Storage tank water heaters should be flushed once a year to remove sediment. You should also check the anode rod to prevent rust buildup.
Tankless water heaters need to be descaled once a year, especially in areas with hard water. This is really important in Ontario, Guelph, Cambridge, and Kitchener-Waterloo because they all have hard water. Without regular care, mineral buildup can shorten your water heater’s lifespan.
4. Household Size: Which Heater Fits Your Home?
If you live alone or with one or two other people, a tankless water heater may be the best choice. It saves space and gives hot water on demand. On the other hand, if you have a large family or run many appliances at once, you may run out of hot water with a single tankless unit. You could install two or stick with a traditional water heater that has a large tank.
In rental homes, storage tank water heaters are easy and cheap to replace. But tankless heaters offer options like endless hot water, which renters may appreciate.
For commercial buildings like cafés or salons, either type can work. It depends on how much hot water you use at one time.
5. Everything You Need to Know About Choosing a Water Heater in Ontario!
Ontario Climate
Ontario has long, cold winters. Cold water coming into your home takes more energy to heat. Tankless systems handle it well, but must be the right size and if they are placed outside, they need freeze protection.
Water Hardness
Over time, minerals build up in pipes and reduce performance. This affects all water heaters Ontario uses, but on-demand water heaters are more sensitive to it, so you need to use a water softener or have your unit serviced yearly.
Water Heater Rebates in Ontario
You may qualify for rebates. The Canada Greener Homes Grant offers up to $5,000 for energy upgrades. Enbridge provides Ontario tankless water heater rebates of up to $1,650. A licensed HVAC contractor can help you with the paperwork and the information you need.
Traditional vs. Tankless Water Heaters Comparison Table
| Feature | Traditional Water Heater | Tankless Water Heater |
|---|---|---|
| Upfront Cost | Cheaper to buy and install | Higher cost, especially if upgrades are needed |
| Installation | Easy to install and swap | Requires more time and parts for correct installation |
| Energy Efficiency | Less efficient, wastes energy by heating water all day | More efficient, heats water only when needed |
| Monthly Bills | Higher monthly costs due to energy usage | Lower bills due to reduced energy consumption |
| Hot Water Supply | Stores a set amount of water; wait required after depletion | Provides hot water on demand, no waiting if sized correctly |
| Lifespan | Lasts 10–15 years | Lasts over 20 years |
| Space Needed | Floor-mounted, takes up valuable space | Wall-mounted, saves space, ideal for smaller homes |
| Maintenance | Requires yearly flushing | Requires yearly descaling, especially in hard water areas |
| Cold Weather Performance | Works well indoors in winter | Works well indoors; needs special care if installed outdoors to avoid freezing |
Traditional vs Tankless: Pros and Cons
Traditional heaters are cheaper and simpler to install. But they waste energy and run out of hot water. Tankless water heaters are efficient, space-saving, and offer endless hot water, but they cost more and take longer to install.
Still Unsure Which Hot Water Heater is Right for Your Home? Contact Don’s Heating and Cooling!
Call today and talk to our licensed HVAC contractors at Don’s Heating and Cooling. We check your home and your water use, and recommend the right option, traditional or tankless water heater, based on your needs. We can also help you discover Ontario tankless water heater rebates, handle the installation, and make sure your system lasts long.
If you want hot water on demand, lower bills, and a long-lasting heater, now is the time.
Contact our HVAC company for a free quote and personalized HVAC services based on your needs today.