Lennox Furnace Installation
Lennox Furnace, and AC Local Supply & Contractor


Lennox Furnace
- Variable-Speed, Ultra-Low Emissions Gas Furnace
- 2 Stage gas Furnace
- 96% efficiency
- ENERGY STAR® Qualified
- Industry-leading, best-selling furnace.
- - 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.
Lennox Merit 110,000 BTU Natural Gas Furnace – 96% AFUE, Two-Stage Variable-Speed
Lennox Merit 90,000 BTU Natural Gas Furnace – 96% AFUE, Two-Stage Variable-Speed
Lennox Merit 70,000 BTU Natural Gas Furnace – 96% AFUE, Two-Stage Variable-Speed
Lennox Merit 45,000 BTU Natural Gas Furnace – 96% AFUE, Two-Stage Variable-Speed
Lennox Elite Furnace , EL297V, 110,000BTU + Professional Installation
Lennox Elite Furnace , EL297V, 45,000BTU
Lennox Elite Furnace 90,000BTU EL297V
Lennox Elite Furnace 70,000BTU EL297V

Lennox Furnace & AC
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.
Lennox Furnace & Panasonic Heat Pump
Get the maximum rebate and a 10-year interest-free loan.
- 30 degrees Invest in an energy-efficient cold climate heat pump that delivers effective heating even in extreme temperatures as low as
- guaranteeing long-lasting performance and peace of mind.10-year warranty,This top-notch Panasonic heat pump comes with a generous
- Paired with a Lennox gas furnace, this combination ensures maximum efficiency and year-round comfort for your home.
- 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.
Get Your Lennox Quote Quickly & Confidently
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.
Service area:
Greater Toronto Area:
Toronto • Mississauga • Brampton • Markham • Vaughan • Richmond Hill •
Aurora • Newmarket • Scarborough
Extended Service Area:
Stouffville • Oshawa • Barrie • Orangeville • Hamilton • St. Catharines •
Guelph • Kitchener
Request Your 20-Minute Estimate
Our HVAC Expert will review your info, prepare an official estimate, and contact you within 20 minutes
Why 4Most Energy Is Ontario’s Trusted Choice for Home Comfort
Local & Reliable
Proudly serving GTA homeowners with trusted service, extended maintenance, and real local support.
Clear, Upfront Pricing
Know your total cost before installation. No hidden fees just honest, transparent quotes.
Expert Advice, Not Sales Talk
You’ll always speak directly with a licensed HVAC expert never a call center or salesperson.
Fast, Professional Installation
Same-day or next-day installs by certified technicians, done right the first time.
Flexible Financing Options
Upgrade your system with affordable monthly plans — no large upfront payment required.
4Most Protect Keeps You Covered.
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.
Smart Payments Made Easy with 4Most SmartPay.
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.