Any Home. Any Season. One System.
Upgrade to a high-efficiency heat pump to heat and cool with one system, reduce energy costs, and get up to $7,500 in rebates.




Off-season pricing means the best deals of the year on high-efficiency air conditioners.

Save Big on Lennox Furnaces — Limited Time!
Get a new high-efficiency Lennox furnace with no payments for up to 6 months. Premium comfort, top-tier performance.

Simple estimates, flexible payments, pro installation, and industry-leading warranties.


Lennox Furnace, and AC Local Supply & Contractor


Get a free humidifier
The estimate covers the installation of the furnace, removal of the old unit, a complimentary humidifier, registration of the Lennox furnace, and a 10-year warranty.

Lennox EL297V 70k BTU: High-efficiency 97% AFUE, 2-stage furnace. Trust 4Most Energy, your #1 local Lennox installer, for expert service...

Lennox EL297V 90k BTU: High-efficiency 97% AFUE, 2-stage furnace. Trust 4Most Energy, your #1 local Lennox installer, for expert service...

Lennox ML296V 90k BTU: High-efficiency 96% AFUE, 2-stage, variable speed. The smart value choice for larger homes. Trust 4Most Energy,...

Lennox ML296V 70k BTU: High-efficiency 96% AFUE, 2-stage, variable speed. The perfect value choice for medium homes. Trust 4Most Energy,...
Lennox ML296V 90k BTU: High-efficiency 96% AFUE, 2-stage, variable speed. The smart value choice for larger homes. Trust 4Most Energy, your #1 local Lennox installer, for expert installation.
Lennox ML296V 90k BTU: High-efficiency 96% AFUE, 2-stage, variable speed. The smart value choice for larger homes. Trust 4Most Energy, your #1 local Lennox installer, for expert installation.
Lennox ML296V 70k BTU: High-efficiency 96% AFUE, 2-stage, variable speed. The perfect value choice for medium homes. Trust 4Most Energy, your #1 local Lennox installer, for expert installation.
Lennox ML296V 45k BTU: High-efficiency 96% AFUE, 2-stage, variable speed. The perfect value choice for small homes. Trust 4Most Energy, your #1 local Lennox installer, for expert installation.
Lennox EL297V 110k BTU: High-efficiency 97% AFUE, 2-stage furnace. Trust 4Most Energy, your #1 local Lennox installer, for expert service and quiet comfort in large estate homes.
Lennox EL297V 90k BTU: High-efficiency 97% AFUE, 2-stage furnace. Trust 4Most Energy, your #1 local Lennox installer, for expert service and quiet comfort in larger homes.
Lennox EL297V 70k BTU: High-efficiency 97% AFUE, 2-stage furnace. Trust 4Most Energy, your #1 local Lennox installer, for expert service and quiet comfort in medium-sized homes.
Lennox EL297V 45k BTU: High-efficiency 97% AFUE, 2-stage furnace. Trust 4Most Energy, your #1 local Lennox installer, for expert service and quiet comfort in small-sized homes.

Take advantage of the top offer for the Lenox furnace and air conditioning package, benefit from reduced
installation costs, and experience the 10-year superior warranty and matched unit for optimal performance.
- No payment for three months with zero interest.
- Equal payment over 24 months.
- Long-term financing options available.
Get a free humidifier
The estimate covers the installation of the furnace, removal of the old unit, a complimentary humidifier, registration of the Lennox furnace, and a 10-year warranty.
Get the maximum rebate and a 10-year interest-free loan.
- No payment for three months with zero interest.
- Energy Advisor and Rebate Coordination
- 10 Year Zero Interest Ontario Greener Homes loan

The cost of furnace installation ranges from $1,000 to $1,600, depending on the brand and model of the furnace, as well as the existing conditions. The installation includes the cost of running PVC piping for the flue vent to the side wall of the house, modifying ducts, setting up the air filtration system, installing drain pipes, wiring the thermostat, and connecting gas piping for the new furnace. It is crucial to have a qualified contractor perform the installation to ensure that the gas piping and flue vents are installed correctly, as improper installation can pose serious hazards.
Lennox is a prominent name in the HVAC industry, known for its extensive history in producing heating and cooling equipment. The brand is recognized for the high quality of its products, which come with dependable warranties. Lennox systems are designed for low maintenance, and the associated repair costs tend to be reasonable due to the wide availability of parts. Furthermore, many gas technicians are well-acquainted with Lennox equipment, enhancing accessibility to support and service for users.
Typically, the cost of installation includes most scenarios for furnace replacement, except in cases involving an oil furnace or a furnace installed in the 1980s or earlier. In these situations, the cost of ductwork may be significantly higher, as the entire cold air return duct will need to be replaced, and the existing gas piping may not be compatible with the new systems.
The Lennox Merit and Elite series are 100% compatible with any type of HVAC system. Whether your existing system is very old or fully smart, Lennox products can easily adapt to the current setup. The most important factor is that the installation should be performed by an experienced gas technician and a reliable company to ensure quality support and installation.
Yes, you can buy a standard gas furnace and add a heat pump unit to your HVAC system. The heat pump is efficient enough to provide heating even when outdoor temperatures reach as low as -25 degrees Celsius. You can rely on natural gas only for emergency heating or as a backup system. Additionally, hybrid systems qualify for the Ontario Greener Homes rebate program.
4Most Energy offers various financing options that change from month to month. Typically, during the slower season, the financing options become more attractive, featuring lower interest rates and sometimes even zero interest. Please consult your sales representative to find the best options based on your credit history and the amount of your purchase.
Posted on FoadTrustindex verifies that the original source of the review is Google. Excellent service at a very reasonable price! The team was professional, efficient, and really went above and beyond to make sure everything was done right. I’m very happy I found them—working with people who truly care about their customers makes all the difference. I wouldn’t hesitate to recommend their services to anyone looking for great quality and value.Posted on Eddy LeeTrustindex verifies that the original source of the review is Google. Fantastic service. On a Friday (before a long weekend and with a planned pool party) I noticed my pool heater was not working and have an ignition error. I called up 4Most Energy and they had someone out there that same day at 7PM to diagnose and fix the issue. Great prompt service!Posted on E LTrustindex verifies that the original source of the review is Google. Rey and his technician were prompt, knowledgeable and helpful thoughout the process of assessing the heating needs for my pool. My pool heater had gone end of life and they patiently walked me through options and I settled on a new pool heater. He came the next day to install and even optimized the pipping that my pool maintenance company had previously put in. Highly recommend 4Most Energy and Rey.Posted on ness malTrustindex verifies that the original source of the review is Google. 4most energy came to change my furnace. From the onset Ray provided excellent customer service and took the time to explain everything. He was honest and upfront. His team showed up on time and completed the work professionally. Would recommend them for anyone looking to upgrade their furnace.Posted on Vignesh BharadwajTrustindex verifies that the original source of the review is Google. It was a delight to work with 4most Energy from the day I first spoke to Rey over the phone to the day my boiler installation was done. The guy did not compel me to haggle or think twice about anything, whether the cost or the quality of the brand. He was happy to answer my million questions. The day of the installation was just as smooth. The team of two showed up right on time, and finished the job by evening as promised. The guys did an amazing job - very neat work, left the place tidy, took away my old unit and cleaned up everything without a spot on their way out. Really appreciate their professionalism. My full marks to 4most Energy - keep up the great work guys!Posted on Manuel PereiraTrustindex verifies that the original source of the review is Google. The job was great. They were very clean and fast. We are very happy with the service. Thank you!Posted on Matti SaranTrustindex verifies that the original source of the review is Google. Sam and the team were excellent were amazing explained things very well. Thank you so muchPosted on C.J. CroccoTrustindex verifies that the original source of the review is Google. Rey and his team were amazing! They were able to come in and find the issue with my heater. Replaced a week later and works like a charm. They are super knowledge and give you every option to work within your budget.Posted on Sarina TakiTrustindex verifies that the original source of the review is Google. I had an exceptional experience with 4mostenergy for my recent AC installation. From start to finish, the service was top-notch. The team arrived on time, worked efficiently, and the installation was flawless. They were incredibly professional and attentive to every detail, ensuring that everything was set up perfectly. I highly recommend 4MostEnergy for their outstanding service and expertise!Posted on Ivan SingTrustindex verifies that the original source of the review is Google. Attention to detail and friendly service. Honest pricing. Cleaned up after completion of installation. Highly recommend.
We understand that requesting a quote is the first crucial step toward a comfortable home.
Fast Response: Our dedicated team prioritizes quote requests. Expect a call or email within one business day to confirm your details.
Expert Guidance: We handle everything from high-efficiency replacements to new installations. We'll ensure the boiler we recommend is perfectly sized and meets all Ontario safety standards.
No Obligation: Submitting this form is free. We provide transparent pricing and expert advice so you can make an informed decision.
Greater Toronto Area:
Our HVAC Expert will review your info, prepare an official estimate, and contact you within 20 minutes
Proudly serving GTA homeowners with trusted service, extended maintenance, and real local support.
Know your total cost before installation. No hidden fees just honest, transparent quotes.
You’ll always speak directly with a licensed HVAC expert never a call center or salesperson.
Same-day or next-day installs by certified technicians, done right the first time.
Upgrade your system with affordable monthly plans — no large upfront payment required.
Protect your heat pump, boiler, or HVAC system with comprehensive coverage that gives you peace of mind.
With 4Most Protct, you’re covered for repairs, parts, and replacements, all handled by certified 4Most Energy technicians, so you can focus on what matters most.
Enjoy total comfort without the upfront cost.
With 4Most SmartPay, you can spread your payments into affordable monthly plans that fit your budget — no surprises, no hidden fees, just flexible financing designed for Ontario homeowners.



Off-season pricing means the best deals of the year on high-efficiency air conditioners.

Save Big on Lennox Furnaces — Limited Time!
Get a new high-efficiency Lennox furnace with no payments for up to 6 months. Premium comfort, top-tier performance.

Simple estimates, flexible payments, pro installation, and industry-leading warranties.


Need help? Our team is just a message away