Before we get into the numbers, here are the key variables that determine what you’ll pay:
- Unit Type: Power vent water heater vs. power vent furnace vs. tankless. Each category has its own price range.
- Efficiency Rating: Higher AFUE (furnaces) or Energy Factor/UEF (water heaters) ratings mean better long-term savings but higher upfront costs.
- Tank Size or Heating Capacity: A 40-gallon unit costs less than an 80-gallon tank. Furnace BTU output also affects price.
- Brand: Premium brands like Lennox, Rinnai, and American Standard carry higher price tags but often come with better warranties and reliability.
- Installation Complexity: A straightforward swap-out is cheaper than a job that requires running new vent lines, gas lines, or electrical connections.
- Rebate Eligibility: Ontario government rebate programs can reduce your net cost significantly — sometimes by thousands of dollars.
Power vent water heaters are one of the most popular upgrades for Ontario homeowners, especially in homes without a traditional chimney. Here’s a breakdown of what you can expect to pay:
40-Gallon Power Vent Water Heater
- Unit cost: $600 – $1,100
- Installation: $300 – $600
- Total estimated cost: $900 – $1,700
Best for: Smaller households of 1–3 people or homes with lower hot water demand.
50-Gallon Power Vent Water Heater
- Unit cost: $800 – $1,400
- Installation: $300 – $650
- Total estimated cost: $1,100 – $2,050
Best for: Average households of 3–4 people. The most commonly purchased size in Ontario.
75–80-Gallon Power Vent Water Heater
- Unit cost: $1,100 – $2,000
- Installation: $400 – $750
- Total estimated cost: $1,500 – $2,750
Best for: Large families of 5+ or homes with high hot water usage (multiple bathrooms, jetted tubs, etc.).
Tankless (on-demand) water heaters with power vent technology cost more upfront but deliver greater long-term energy savings. Brands like Rinnai — which Constant Home Comfort proudly carries — are industry leaders in this category.
- Entry-level tankless: $1,200 – $1,800 (unit only)
- Mid-range tankless: $1,800 – $2,500 (unit only)
- Premium/high-efficiency tankless (e.g., Rinnai): $2,500 – $3,500 (unit only)
- Installation: $500 – $1,200 (can be higher if gas line upgrades are required)
Note: Tankless water heaters often require a larger gas line and dedicated venting, which can add to installation costs. However, their longevity (20+ years vs. 10–15 for tank units) and energy savings make the investment worthwhile for many Ontario homeowners.
In the furnace world, “power vent” refers to mid-efficiency models (typically 80% AFUE) that use an induced draft blower to expel exhaust gases. These sit between basic natural draft units and high-efficiency condensing furnaces.
80% AFUE Power Vent Furnace (Mid-Efficiency)
- Unit cost: $1,200 – $2,200
- Installation: $800 – $1,500
- Total estimated cost: $2,000 – $3,700
Best for: Homes with an existing metal flue or chimney, or situations where a high-efficiency install is not practical.
90%+ AFUE High-Efficiency Condensing Furnace (Power Vent / Direct Vent)
- Unit cost: $1,800 – $3,500
- Installation: $1,000 – $2,000
- Total estimated cost: $2,800 – $5,500
Best for: Homeowners looking for maximum energy savings and rebate eligibility. High-efficiency furnaces qualify for government rebate programs in Ontario, which can dramatically reduce net cost.
Here’s a quick summary of typical all-in costs (unit + installation) for power vent systems in Ontario:
- 40-Gallon Power Vent Water Heater: $900 – $1,700
- 50-Gallon Power Vent Water Heater: $1,100 – $2,050
- 75–80-Gallon Power Vent Water Heater: $1,500 – $2,750
- Tankless Power Vent Water Heater: $1,700 – $4,700
- 80% AFUE Power Vent Furnace: $2,000 – $3,700
- 90%+ AFUE High-Efficiency Furnace: $2,800 – $5,500
Keep in mind: these are estimated ranges. Your actual cost will depend on your home’s specific requirements, the brand and model you choose, and what rebates you qualify for. Contact Constant Home Comfort for a transparent, no-surprise quote.
One of the biggest advantages of upgrading to a qualifying power vent or high-efficiency system in Ontario is access to government rebate programs. These programs are designed to reduce the financial barrier to switching to more efficient home comfort equipment.
Available rebates in Ontario may include:
- Up to $5,000 for eligible ductless heat pump systems for homes with electric heating in qualifying postal codes.
- Up to $2,000 for ducted or ductless heat pump systems.
- Additional federal and provincial incentives for high-efficiency furnaces and water heaters that meet minimum energy performance thresholds.
- 0% financing options available through Constant Home Comfort, making it easier to manage the upfront investment.
Rebate programs change frequently. Our team stays up to date on every available incentive and will help you maximize what you’re eligible for at the time of purchase.
How does power vent pricing stack up against alternative venting options?
Natural Draft (Atmospheric Vent)
Generally the cheapest upfront option, but increasingly difficult to install in newer homes without an existing chimney. Operating costs are higher due to lower efficiency, and the units are becoming harder to find as the industry moves toward better venting standards.
Power Vent
Mid-range in price with excellent installation flexibility. The ability to vent horizontally through a wall eliminates the need for a chimney, which can actually save money on installation if your home doesn’t already have one. A reliable, cost-effective choice for most Ontario homes.
Direct Vent (Sealed Combustion)
Slightly higher in unit cost due to the sealed combustion design, but often eligible for higher efficiency rebates. Direct vent systems are the gold standard for sealed, modern homes and are particularly popular in new builds across the GTA.
In most cases, yes — and here’s why:
- Longer lifespan: Power vent units tend to last longer than natural draft models because the controlled airflow reduces stress on the heat exchanger and combustion components.
- Lower energy bills: Higher efficiency ratings translate directly into lower monthly gas bills. Over 10–15 years, the savings add up considerably.
- No chimney costs: If your home doesn’t have an existing flue, a power vent install avoids the significant cost of adding or repairing a chimney — which can run $1,500 to $5,000+ on its own.
- Safety: Reduced risk of backdrafting means a safer home for your family — a value that’s hard to put a number on.
- Rebate eligibility: Many power vent and high-efficiency models qualify for rebates that can cut hundreds to thousands off your final cost.
Why is a power vent water heater more expensive than a natural draft unit?
Power vent units include an electric blower motor, additional safety controls, and a more durable design. These components add to the manufacturing cost but also result in better performance, improved safety, and greater installation flexibility.
Are there hidden costs I should know about?
Not with Constant Home Comfort. We provide full price disclosure upfront, including unit cost, installation fee, and materials. Some installations may require additional work — such as upgrading a gas line or running a new vent path — and we’ll always tell you about these before any work begins.
Can I finance a power vent water heater or furnace?
Yes. Constant Home Comfort offers 0% financing for up to 12 months on qualifying purchases, making it easier to upgrade without a large upfront payment. Ask us about current financing plans when you call or book online.
How do I know which size or model is right for me?
Our advisors assess your household’s hot water or heating demand, the size of your home, and your existing setup before making a recommendation. We’ll never oversell you a unit that’s bigger or more expensive than what you actually need.
At Constant Home Comfort, there are no surprises. Our pricing is fully disclosed, our installations are done right the first time, and our team will guide you through every available rebate to make sure you’re getting the best possible value.
Whether you’re in Toronto, Mississauga, Hamilton, Ottawa, or anywhere across Ontario, we’re ready to help you compare your options and find the right power vent solution for your home and your budget.
📞 Call for a free quote: 1 (888) 675-5907
💻 Book online: constanthomecomfort.com
Check your rebate eligibility, explore our current promotions, and get the best power vent prices in Ontario — all in one call.
