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Ottawa's Trusted Choice for Furnace & Heating Installation

✔ Ottawa's trusted local HVAC experts.
✔ In-house licensed technicians.
✔ Get a free, no-obligation estimate.

What to Expect When You Get an Estimate

Local Experts

We’re a local business, not a large corporation. Our team lives and works right here in Ottawa.

Competitive Pricing

As a high-volume company, we pass our savings directly on to you.

Trusted Professionals

All our installers are licensed, in-house refrigeration mechanics, ensuring top quality and a consistent experience.

Get a Free Quote

We'll call you to discuss your needs and set up a time for a home visit. Our goal is to provide a fast and accurate quote.

*Your information is secure, never shared with third parties, and only used to respond to your request.

Proudly Serving Ottawa Homes for Over 32 Years

At Ambassador HVAC, we’ve built our reputation on keeping Ottawa homeowners comfortable year-round. For more than 32 years, our licensed technicians have been helping families across the city with heating and cooling needs.

 

Our long-standing partnerships with many of Ottawa’s leading builders are a reflection of the quality, trust, and consistency we bring to every job.

Press play to see why Ottawa families and builders trust Ambassador HVAC

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R-410A 

Our Leading Gas Furnaces

Consistent airflow from the variable-speed blower

SilentComfort™ technology

Enhanced humidity control

Compatible with other Lennox products.

Merit® gas furnaces

R-410A

Merit® gas furnaces

Patented clamshell design

Sturdy burners reduce noise

Smart installation features

Compatible with other Lennox products.

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R-410A

Elite® gas furnaces

Patented clamshell design.

Insulated cabinet and sturdy burners keep operation quiet

Smart installation features

Compatible with other Lennox products.

Premium Comfort with Lennox® Furnaces

As a Lennox® Premium Dealer, we bring you one of the most trusted names in home heating. Lennox furnaces are known for their:

  • High efficiency

  • Quiet performance

  • Industry-leading reliability.

Many models are ENERGY STAR® qualified, helping homeowners cut down on energy bills while keeping their homes consistently comfortable. With options that include advanced temperature control and smart home integration, Lennox sets the standard for comfort and long-term value.

Trusted Performance with Goodman® Furnaces

Goodman® furnaces are part of the core product line we offer, known for delivering comfort and value. Their systems stand out for strong heating performance, straightforward maintenance, and excellent warranty coverage that protects your investment for years to come.

 

Many Goodman® models include multi-speed blower motors for steady airflow, quiet operation, and improved indoor air quality.

 

With ENERGY STAR® options available, Goodman® combines efficiency with affordability, making it a smart choice for families who want comfort that lasts without added complexity.

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GMVM97

modulating gas furnace

Comfort Bridge™ technology adapts system performance.

Quiet, variable-speed blower.

Thermally insulated cabinet reduces air leaks.

Up to 98% AFUE efficiency means lower energy bills.

Durable dual heat exchangers.

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GM9C96

Two-Stage gas furnaces

Multi-speed ECM motor – adjusts airflow.

Insulated cabinet – reduces air leaks.

Two-stage gas valve – saves energy.

Up to 96% AFUE efficiency – lower energy use.

Durable dual heat exchangers.

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GMVC96

Two-Stage gas furnaces

Multi-speed ECM motor – adjusts airflow.

Comfort

Bridge™ technology – customizes performance

Two-stage gas valve – adapts energy use for efficient heating.

Up to 96% AFUE efficiency – lower energy costs.

Durable dual heat exchangers.

Residential Housing

Why Choose Ambassador HVAC?

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In-House Experts

From service calls to installations and maintenance, our skilled team takes care of every step, ensuring consistent quality and peace of mind.

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Customer-Focused Service

We are a local, family-run business, and we treat every customer with respect. We take all reviews seriously and follow up to resolve issues.

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Quality Products

As a Lennox® Premium Dealer, we replace and install some of the most efficient and quietest heating systems you can get.

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Licensed Professionals

All our installers are full-time, licensed employees who are highly trained to handle any job.

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Flexible Financing

We offer a "six-month no payment, no interest"

Services We Offer

A reliable furnace is the heart of a comfortable home in Ottawa’s cold winters.

We make sure your system runs safely, efficiently, and without surprises.

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Furnace Installation & Replacement

Whether you’re upgrading an old system or installing a brand-new furnace, we make sure your home gets the right fit for comfort, efficiency, and long-term value.

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Furnace Repairs & Emergency Service

From minor fixes to no-heat emergencies, our team is on call to get your furnace back up and running quickly, so your home stays warm when it matters most.

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Furnace Maintenance & Tune Ups

Regular maintenance keeps your furnace running efficiently and helps prevent costly breakdowns. Our tune-ups extend the life of your system and keep energy bills in check.

Our Simple & Straightforward Process

Getting a new furnace should be easy. Our process is designed to be transparent, efficient, and tailored to your home by our own licensed technicians

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Your Free, In-Home Assessment

When you contact us, we'll schedule a time for a licensed Ambassador HVAC technician to visit your home.

 

Our team members are not just salespeople; they are skilled professionals with the experience to provide a thorough, accurate assessment.

 

We'll listen to your needs, answer your questions, and conduct an initial evaluation to recommend the best furnace for your space and budget.

Our Customers Say It Best

Full system upgrade installed efficiently, with fast follow-up on a minor issue.

“We recently replaced our furnace, ac, air filter and added a flow through humidifier during the sales process, Robert was always available and patient as we reviewed our options. The team who did our installation ( Marc and Kyle) were efficient, knowledgeable and respectful of our home. Overall our experience with Ambassador Dearie was professional and very customer focused. We had a minor leak in the coil of the humidifier and it was replaced promptly!”

Frances Tanner

Timely, professional replacement of furnace and AC, with every question answered.

“I am very pleased with the service provided for the replacement of my furnace and air conditioner, as well as the cleaning of my fireplace. Ambassador Dearie's team completed all the work in a timely, professional manner and were able to answer any questions I had throughout the job.”

Judy Harrison

Concerns about AC installation were carefully listened to and resolved with clear communication.

“I am an ambassador hvac customer. Their management was easily reachable, and they took time to carefully listen to my concerns for air conditioner installation. Their management explained to me how they are committed to helping their clients and that they have been helping customers for over 30 years. After further interaction with them I am happy to modify my review and appreciate all their help.”

Akshay Saini

Two oil furnaces were replaced with new gas units, done thoroughly and professionally.

“Replacing 2 oil furnaces for new gas furnaces was done in a professional and thorough manner. To find their pears one only has to look for the best of the best in their industry. We very satisfied with the results.”

Richard Goulet

Quick and knowledgeable repair service that got the furnace and vent working again.

“Service team was really responsive, we were provided with great professional repair service from Technician Mr. Ye for both our furnace and vent, he has strong knowledge for there and gave them a quick and valid repair. Really appreciate his help and I strongly recommend Ambassador Dearie Hvac!”

Xiangtianyu Kong

A complex system explained clearly, saving money on bills and fixing AC issues.

“My tech (Martin) was absolutely amazing. I have a kind of confusing two-unit system (AC/Heat Pump, Furnace) that I've never fully understood how it worked. He was able to walk me through the whole system and explain at what temps things should be turned on and off, helped me save money on my electric/heating bills, and also figured out why my AC wouldn't shut off in the winter. Scheduling a call was super easy, they came on time, were very efficient, and there were no surprises with price. Highly recommend and will use again!”

Samantha Jennings

New furnace and heat pump installed on time, professionally, and at a better price than competitors.

“I had my gas furnace/AC system replaced with a new furnace/air heat pump system Feb 13, 2024. The team of 2 arrived on time, worked steadily and professionally until 3:30. They cleaned up thoroughly, removed all the old equipment and then took me thru the workings of the new system and digital thermostat. Needless to say I am very impressed with everyone at Ambassador Dearie Hvac and highly recommend them. Their pricing was seriously better than the competition. Thank you.”

Angela Croswell-Wilton

Multiple jobs completed promptly with honest service and no sales pressure.

“They have now supplied and installed AC for me and two relatives + major furnace repair at my home. Incredibly prompt, honest and fair! I usually have very little tolerance for pressure and upsell tactics - there's none of that with any of the sales, service or tech teams. Just efficient, knowledgeable and (worth repeating... ) honest!”

Stephanie Lockhart

Furnace issue resolved quickly, now working perfectly again.

“I recently experienced an issue with my furnace, but fortunately Jay the technicia provided outstanding service. He resolved the problem, and now my furnace is working perfectly again.”

Sergio Narvaez

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Serving the Ottawa Area

From downtown Ottawa to the surrounding communities, we’re proud to serve homeowners across the region.

✔ Ottawa

✔ Ottawa South

✔ Orleans

✔ Beacon Hill

✔ Kanata

✔ Cumberland

✔ Vanier

✔ Navan

✔ Pineview

✔ Riverside

✔ Gloucester

✔ Greely

✔ Alta Vista

✔ Rockland

✔ Overbrook

✔ Metcalfe

✔ Bridlewood

✔ Osgoode

✔ Barrhaven

✔ Manotick

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Ready to stay warm all winter long?

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