# High-Efficiency Furnace Toronto | 95% AFUE + Rebates

URL: https://bestfurnacerepairtoronto.ca/high-efficiency-furnace-toronto/

![High-efficiency 95% AFUE condensing furnace installed with PVC venting in a Toronto basement](/images/misc/newly-installed-95-percent-afue-condensing-furnace.webp)

TSSA-Licensed Gas Technicians Since 2005

# High-Efficiency Furnace Conversion Toronto: 95% AFUE Upgrades with Enbridge and Federal Rebates Filed

Last updated: September 16, 2026

95% AFUE conversions with rebate coordination, condensing venting, and 15 to 20 percent gas savings.

Call Now: (416) 555-0100

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$5,500 to $8,500 CAD installed conversion

## Why Toronto Homeowners Call Us

-   TSSA G1 and G2 licensed technicians
-   20+ years of GTA furnace service
-   Diagnostic waived on same-visit repair
-   Written repair-vs-replace recommendation

**20+ Years** GTA Furnace Experience

**5-Star** Customer Satisfaction

**4-Hour** Emergency Response

**TSSA Licensed** G1 and G2 Certified

## What Is a High-Efficiency Furnace Conversion in Toronto?

Is your old furnace struggling to keep up with the cold Toronto winters? We know how frustrating it is when energy bills climb while your house still feels chilly.

A reliable heating system is the secret to a comfortable home.

We are going to walk you through exactly what a high-efficiency furnace conversion involves. Grab a cup of coffee, and let’s go through the steps together.

A high-efficiency furnace conversion in Toronto means replacing a mid-efficiency 80% AFUE gas furnace with a 95%+ AFUE condensing unit. We find that this modern technology cuts natural gas use for heating by roughly 15 to 20 percent. The new unit features a secondary heat exchanger to pull additional heat out of the flue gas.

![Condensate drain and neutraliser fitted beneath a newly installed condensing furnace](/images/maps/condensate-drain-line-neutraliser-and-pump-install.webp)

Our conversion process includes several mandatory upgrades to ensure everything runs perfectly:

-   **Proper Sizing:** Performing a Manual J load calculation to prevent short cycling.
-   **Venting Upgrades:** Installing the required System 636 PVC or polypropylene venting.
-   **Drainage Setup:** Fitting a condensate drain with an acidic neutraliser.
-   **Official Approval:** Securing a municipal permit and commissioning by a TSSA G1 or G2 licensed technician.

Installed cost for a 95% AFUE conversion with a popular brand like Trane or Lennox runs $5,500 to $8,500 CAD in the Greater Toronto Area, before rebates. Our ENERGY STAR certified installers file the rebate paperwork on your behalf to help offset that initial price.

## The 3 Ontario Rebates Available on a 95% AFUE Install

Financial incentives can be confusing, so we stay on top of the current provincial and federal programs to ensure you never miss out on available funds. Our administrative team helps you apply for the active programs to maximize your return on investment.

### 3 Active Funding Options

1.  **Enbridge Home Efficiency Rebate Plus (HER+).** Up to $6,500 CAD when you combine your 95% AFUE furnace upgrade with qualifying envelope improvements like insulation.
2.  **Canada Greener Homes Grant.** Up to $5,000 CAD for eligible homeowners upgrading to a high-efficiency system.
3.  **Seasonal manufacturer and utility promotions.** Brands like Lennox or Trane frequently run limited-time discounts throughout the year. We flag these specific brand promotions when they apply rather than building them into a quote that might expire.

Program rules, funding levels, and assessment requirements change frequently. We confirm your eligibility in writing before you commit to any project.

The application paperwork requires careful attention to detail. We file all the equipment documentation directly on your behalf.

## How Much Does a High-Efficiency Furnace Save in a Toronto Home?

Natural gas rates keep climbing in Ontario, making heating efficiency highly valuable. We love showing homeowners exactly how much they can reduce their monthly utility bills.

The real financial saving comes directly from the efficiency gap between the unit you currently have and the one you install. Our experts mapped out the average natural gas reductions you can expect below.

| Current unit | Efficiency | Approximate heating gas reduction with 95% AFUE |
| --- | --- | --- |
| Pre-1990 gravity or atmospheric | 55 to 70% AFUE | 25 to 35 percent |
| 1990s to 2000s mid-efficiency | 78 to 82% AFUE | 15 to 20 percent |
| Early condensing unit | 90 to 92% AFUE | 3 to 5 percent |

The last row is the honest part of that table because upgrading an existing 90%+ unit simply does not pay off. We always advise clients in that situation to spend their money on different upgrades instead.

Upgrading your attic insulation to the current Ontario Building Code target of R-60 provides a much faster return on investment. Our advisors might also suggest duct sealing or installing a cold-climate heat pump for shoulder-season heating.

## What the Conversion Actually Changes in Your Home

Swapping to a condensing furnace requires a few noticeable physical changes in your utility room. We want you to know exactly what to expect before the installation day arrives. The modifications ensure your system runs safely and meets all modern building codes.

### Key Installation Updates

-   **Venting:** The masonry chimney or B-vent is abandoned for heating purposes and replaced with a sidewall-terminated PVC or polypropylene intake and exhaust pair. We ensure the new vents meet all clearance requirements from windows, doors, meters, and grade.
-   **Condensate:** A condensing furnace produces acidic wastewater that requires proper drainage. We install a neutraliser to treat this liquid before it reaches a floor drain, or add a condensate pump where no gravity drain exists.
-   **Chimney:** The masonry liner will likely need resizing if your water heater still vents into the old chimney to prevent dangerous drafting issues. We check this critical detail during the initial assessment rather than discovering it after the fact.
-   **Comfort:** Most new condensing units feature variable-speed ECM blowers that use up to 75 percent less electricity than older standard motors. We pair these blowers with two-stage or modulating heating, creating longer, gentler cycles that eliminate cold spots.

Homeowners often notice the even temperature distribution long before they notice the lower gas bill. We regularly hear customers say their home has never felt more comfortable.

## When to Consider a Hybrid Instead

Sometimes a traditional gas furnace is not the absolute best fit for your specific lifestyle goals. We frequently install hybrid setups for clients who want total year-round climate control.

A hybrid approach is perfect if you want efficient cooling in the summer alongside reliable winter heating. Our technicians can pair a cold-climate air-source heat pump with your gas backup to create a highly efficient dual-fuel system.

### The Benefits of a Dual-Fuel Setup

-   **Smart Switching:** The configuration changes the heat source automatically at a set balance point.
-   **Cost Optimization:** Heat pumps operate at up to 300 percent efficiency during milder weather to keep utility costs down.
-   **Year-Round Comfort:** You get reliable air conditioning all summer and powerful gas heating all winter.

This specific dual-fuel option is covered in detail on our page about 

heat pump repair and cold-climate heating

[/heat-pump-repair-toronto/ →](/heat-pump-repair-toronto/)

. We understand that some homes might only need a straight like-for-like swap without the high-efficiency upgrade. You can review the details for that specific project under 

furnace replacement Toronto

[/furnace-replacement-toronto/ →](/furnace-replacement-toronto/)

.

Our full set of published CAD scope bands is available directly on the 

furnace repair Toronto

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 homepage.

Every house has unique heating needs based on its layout and existing ductwork. We are ready to answer any questions you have about selecting the perfect equipment.

Reach out today to schedule your personalized home energy assessment and claim your 2026 rebates!

Published CAD Pricing

## How Much Does High-Efficiency Furnace Cost in Toronto?

These ranges are published, not quoted on request. Every invoice itemises the diagnostic fee, parts, labour, and disposal separately.

| Scope of Work | Cost (CAD) |
| --- | --- |
| High-Efficiency Furnace Conversion (95%+ AFUE) | $5,500 to $8,500 |
| Mid-Efficiency Replacement (80% AFUE) for comparison | $3,500 to $5,500 |
| Condensing Venting Upgrade (included in conversion) | Included |
| Duct Sealing and Inspection (if required) | $299 to $899 |
| Cold-Climate Heat Pump Installation (hybrid option) | $6,500 to $14,500 |

Installed cost is before rebate offsets. Enbridge Home Efficiency Rebate Plus is worth up to $6,500 CAD on qualifying projects and the Canada Greener Homes Grant up to $5,000 CAD.

Why Us for This Job

## Why Choose Best Furnace Repair Toronto for High-Efficiency Furnace

### 20+ Years of Furnace Repair Experience

Two decades of servicing both mid-efficiency and condensing equipment means we know exactly what a conversion changes in day-to-day operation.

### ENERGY STAR Certified Installer

Required for Enbridge Home Efficiency Rebate Plus eligibility. We hold the certification and file the paperwork for you.

### Venting Planned Before Quoting

A condensing conversion lives or dies on the vent route and condensate path. Both are measured before we put a number on the job.

### Honest Payback Numbers

We show the gas saving against your current unit's efficiency, not a brochure figure, so the payback period is yours and not a generic one.

### TSSA G1 and G2 Licensed

Conversions touch gas piping, venting, and electrical. All of it is done licensed, permitted, and inspected.

### Commissioned to the Numbers

Combustion efficiency, CO, temperature rise, and static pressure measured and recorded at handover.

From Call to Verified Repair

## How Our Toronto Furnace Diagnostic Process Works, 5 Steps

01

### Efficiency Assessment

Current unit efficiency and age, annual gas consumption, envelope condition, venting path, and condensate route.

02

### Savings and Rebate Modelling

Projected gas saving in CAD, installed conversion cost, and confirmed rebate eligibility under Enbridge HER+ and Canada Greener Homes.

03

### Permit and Scheduling

Municipal permit filed, equipment ordered, and the conversion scheduled, typically within 3 to 5 business days.

04

### Conversion Installation

Old unit removed, condensing furnace set, System 636 venting run, condensate drain and neutraliser fitted, gas and ESA-verified electrical connected.

05

### Commissioning and Rebate Filing

Combustion analysis, CO verification, staging test, written warranty, and rebate applications submitted on your behalf.

## Need High-Efficiency Furnace in Toronto or the GTA?

Same-day dispatch, TSSA-licensed technicians, and the diagnostic fee waived when you authorise the repair on the same visit.

(416) 555-0100

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Send a Message

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Free Tool

## Try Our Free Heat Pump Energy Cost Estimator

### Heat Pump Energy Cost Estimator

Estimate the monthly electricity cost of running a cold-climate heat pump or other electric heating equipment at your home.

[Heat Pump Energy Cost Estimator →](/tools/energy-cost-estimator/)

The Honest Conversation

## What Actually Stops Toronto Homeowners From Calling a Furnace Technician

The four hesitations we hear most often before a high-efficiency furnace booking, answered plainly.

“The diagnostic fee feels like a trap.”

Our diagnostic starts at $99 CAD and is waived when you authorise the repair on the same visit. It covers a full combustion analysis, a CO check, and a written fault report you keep either way.

“You cannot tell if the technician is really licensed.”

Ontario requires TSSA G1 or G2 certification for gas furnace work. Ours hold both, and certificate numbers appear on every invoice per B149 fuel code so you can verify them on the TSSA public registry.

“Nobody will publish the price.”

Every CAD range for this service is published on this page, above. Scope named, itemised into diagnostic, parts, labour, and disposal, with no quote form in the way.

“How do I know the work will not fail again next month?”

Combustion analysis is re-run and the CO reading verified before we leave, and the parts and labour warranty is issued in writing, typically 1 to 5 years depending on the part and manufacturer.

Our Work

## High-Efficiency Furnace Jobs Across the GTA

Click any image to view it larger.

 

Customer Feedback

## What Customers Say About Our High-Efficiency Furnace

> “Converted a 21-year-old mid-efficiency unit to a 95% AFUE high-efficiency furnace. They modelled the gas saving against my actual usage, handled the venting run, and submitted both rebate applications.”

A Antoine B. North York (Don Mills)

> “The condensate routing in my basement was awkward and two other companies waved it off. These ones measured it, quoted it properly, and the install was clean.”

D Dana F. Toronto (The Annex)

> “Gas bill dropped noticeably the first winter, and the house holds temperature far better with the two-stage setup. The rebate cheque arrived without me chasing anyone.”

S Suresh N. Thornhill

Straight Answers

## High-Efficiency Furnace Questions, Answered

### How much does a 95% AFUE high-efficiency furnace cost in Toronto?

Installed cost runs $5,500 to $8,500 CAD before rebates, including the condensing venting upgrade, condensate drain, permit, and commissioning. Enbridge Home Efficiency Rebate Plus is worth up to $6,500 CAD on qualifying projects and the Canada Greener Homes Grant up to $5,000 CAD.

### The 3 Ontario rebates available on a 95% AFUE install, what are they?

Enbridge Home Efficiency Rebate Plus, worth up to $6,500 CAD when the furnace is paired with qualifying envelope upgrades; the Canada Greener Homes Grant, worth up to $5,000 CAD; and periodic manufacturer or utility promotions, which vary by season. Program rules and funding change, so eligibility is confirmed in writing before you commit.

### How much will a high-efficiency furnace actually save me?

Moving from an 80% AFUE unit to a 95% AFUE unit cuts natural gas use for heating by roughly 15 to 20 percent. On a typical Toronto detached home that is a meaningful annual reduction, and we model it against your actual consumption rather than quoting a generic figure.

### What is the payback period on a high-efficiency conversion?

Typically 6 to 10 years on gas savings alone, and considerably shorter once Enbridge and federal rebates are applied. If your current unit is already failing, the right comparison is not against zero, it is against the cost of a mid-efficiency replacement.

### What is the difference between 80% AFUE and 95% AFUE?

An 80% AFUE furnace sends roughly 20 percent of the fuel energy up the flue. A 95% AFUE condensing furnace extracts additional heat through a secondary condensing heat exchanger, producing acidic condensate that drains rather than exhausting as hot flue gas. The condensing unit needs PVC or polypropylene venting and a condensate drain.

### Does the venting have to change for a condensing furnace?

Yes. Flue gas from a condensing unit is too cool for a masonry chimney or B-vent, so it vents through System 636 PVC or polypropylene pipe out a sidewall. That venting run and the condensate route are the two things that decide how straightforward a conversion is in your home.

### Can any Toronto home take a condensing furnace?

Most can, but not all easily. A vent route to an exterior wall with the required clearances and a condensate path to a drain or a condensate pump are both required. In tight heritage mechanical rooms we measure the route before quoting, and occasionally mid-efficiency remains the practical answer.

### Do you file the rebate paperwork or do I?

We file it. As an ENERGY STAR certified installer we complete and submit the Enbridge and federal applications with the equipment documentation attached. Approval and payment are decided by the program administrator, not by us.

### Is a heat pump a better upgrade than a high-efficiency furnace?

It depends on your electricity and gas rates and whether you want cooling too. A cold-climate heat pump rated to minus 25 Celsius can cut winter energy cost 30 to 50 percent, and a dual-fuel hybrid pairs it with the gas furnace for the coldest nights. We will model both if you want the comparison.

### Will a high-efficiency furnace be quieter?

Generally yes. Condensing units usually pair with a variable-speed ECM blower and two-stage or modulating gas valves, so they run longer at lower output instead of cycling at full blast. The comfort difference is often more noticeable than the bill difference in the first winter.

### Still have a question about your furnace?

Tell us the symptom, the furnace age, and your postal code. We will tell you what it likely is and what the CAD range looks like before anyone is dispatched.

Call Now: (416) 555-0100

[tel:+14165550100 →](tel:+14165550100)

 

Send a Message

[/contact/ →](/contact/)

## Related Furnace Services

### Furnace Replacement Toronto

80% AFUE from $3,500 CAD, 95% AFUE from $5,500 CAD. Removal, disposal, and permit included, rebate paperwork filed for you.

View service

[Furnace Replacement Toronto →](/furnace-replacement-toronto/)

### Furnace Installation Toronto

Right-sized installs with ECM blower and staging options, venting, and Ontario Building Code compliance.

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### Heat Pump Repair and Cold-Climate Heating Toronto

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![](/images/misc/two-furnace-technicians-in-branded-winter-uniforms.webp)

Same-Day Emergency Dispatch, 24/7 Cold Snap Response

## Book High-Efficiency Furnace With a TSSA-Licensed Technician

Give us the symptom, the furnace age, and your postal code. You get the fault in writing and the CAD cost before any work on your high-efficiency furnace begins.

Call Now: (416) 555-0100

[tel:+14165550100 →](tel:+14165550100)

 

Send a Message

[/contact/ →](/contact/)

-   Diagnostic waived on same-visit repair
-   TSSA G1 and G2 licensed technicians
-   Published CAD pricing, no quote gating