A Buyer’s Guide to Ontario’s Best Tankless Water Heaters
Energy Clean

Switching to a tankless water heater can be a smart move for Ontario homeowners looking to save on energy costs, reduce their carbon footprint, and enjoy an endless supply of hot water. However, choosing the best tankless water heater can be a bit overwhelming with so many options on the market. In this guide, we’ll…
Switching to a tankless water heater can be a smart move for Ontario homeowners looking to save on energy costs, reduce their carbon footprint, and enjoy an endless supply of hot water. However, choosing the best tankless water heater can be a bit overwhelming with so many options on the market. In this guide, we’ll walk you through the key factors to consider when selecting the best tankless water heater for your Ontario home.
Why Go Tankless?
Unlike traditional tank water heaters that store and heat a large volume of water, tankless models heat water on demand. This makes them highly efficient, as they only use energy when hot water is needed, rather than continuously heating a large tank. This efficiency translates to savings on your energy bill, reduced environmental impact, and an endless supply of hot water that never runs out – even during peak usage.
Factors to Consider When Choosing a Tankless Water Heater
- Fuel Type
Tankless water heaters typically come in two main fuel types: electric and gas (usually natural gas or propane). Here’s a breakdown to help you decide which is right for you:- Electric: Electric tankless water heaters are generally more affordable upfront and easier to install, making them a popular choice. However, they may have higher operating costs, especially in colder climates, as they consume more energy to maintain water temperature.
- Gas: Gas tankless water heaters are often more efficient in terms of energy use, especially for larger households with higher hot water demands. They can, however, be more expensive to install, as they require venting systems and, in some cases, gas line upgrades.
When choosing between electric and gas, consider your existing utility setup, budget, and hot water demands.
- Flow Rate (GPM)
Tankless water heaters are rated by their flow rate, measured in gallons per minute (GPM). This represents the amount of hot water the unit can produce at one time. A higher GPM rating means more hot water can flow through the system simultaneously, which is beneficial for larger households.- Smaller households (1-2 people) can usually get by with a GPM of 3-5, which supports one or two fixtures at a time.
- Medium households (3-4 people) may need a GPM of around 5-7 to handle two or three simultaneous uses.
- Larger households (5+ people) or homes with higher water demands should consider a GPM of 7 or above to ensure adequate hot water for showers, laundry, and other tasks.
It’s also important to account for Ontario’s colder winter temperatures, which can reduce the GPM output of a tankless unit. Colder groundwater requires more energy to heat, which affects the unit’s flow rate.
- Energy Efficiency
Most tankless water heaters are highly efficient, but some are better than others. Look for units with an Energy Factor (EF) rating to compare efficiency; the higher the EF, the more efficient the unit. Condensing tankless water heaters are among the most efficient, as they recycle exhaust gases to help heat the water.
Choosing a high-efficiency model may have a higher initial cost, but the savings on energy bills over time can make up for it. Plus, Ontario homeowners may be eligible for rebates or incentives for energy-efficient upgrades, which can help offset the cost.
- Installation Requirements
Tankless water heaters often require specific installation needs, particularly for gas models. Here are some considerations:- Venting: Gas models require venting to expel exhaust gases safely. Depending on your home layout, this could be through an exterior wall or roof, which can add to installation costs.
- Electrical Upgrades: Electric tankless water heaters may require a higher electrical capacity than what some homes currently have. In this case, an electrician may need to upgrade your electrical panel.
Consulting with a qualified HVAC professional or plumber can help you determine the best location for the unit, as well as any additional installation requirements.
- Brand Reliability and Warranty
Research brands that are known for producing reliable tankless water heaters. In Ontario, some trusted brands include Rinnai, Navien, and Noritz. Look for units with a strong warranty—typically, you’ll find warranties ranging from 5 to 15 years. A solid warranty ensures that your investment is protected and can indicate a manufacturer’s confidence in the product’s quality. - Additional Features
Newer tankless models come with additional features that can enhance convenience and performance:- Wi-Fi Connectivity: Some models allow you to control the temperature and monitor performance remotely via smartphone apps.
- Recirculation Pumps: These pumps can provide near-instant hot water, reducing water waste and improving convenience.
- Safety Features: Look for models with anti-freeze and anti-scale protection, which can be particularly useful in Ontario’s colder climate.
Making the Final Decision
Choosing the best tankless water heater for your Ontario home ultimately comes down to balancing your household’s hot water needs with your budget, installation requirements, and efficiency goals. Consulting with a licensed HVAC or plumbing professional can help you understand what capacity, installation setup, and features best suit your home.
Why Choose Energy Clean for Your Tankless Water Heater Needs?
Upgrading to a tankless water heater is a significant investment in your home’s comfort and energy efficiency. At Energy Clean, our knowledgeable technicians are here to help you find the best tankless water heater for your specific needs. From recommending the ideal GPM for your household to handling the installation, we make the transition smooth and stress-free.
Contact us to learn more about our top-quality tankless water heater options, or click below to schedule a consultation!
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