Furnaces
Expert Furnace Installation & High-Efficiency Lennox Furnaces
Overview
When your home needs reliable heat, you need more than just a good furnace — you need a furnace installation done right. At Direct Air Systems, we supply and professionally install high-efficiency Lennox gas furnaces for homeowners across Bolton, Markham, Toronto, and the Greater Toronto Area. Every furnace installation we complete is sized, vented, and configured precisely for your home, so you get consistent warmth, lower energy bills, and a system built to last.
Features:
High AFUE Lennox models for maximum fuel efficiency.
Professional sizing and venting to ensure safe, even heat distribution.
Smart thermostat integration for better control and savings.
Preventive maintenance and fast repair service.
Lennox Elite EL297UHV, EL297UH090XV60C, 97% AFUE, 88000 BTU, 5 Ton, 2 Stage, Variable Speed Upflow/Horizontal Gas Furnace
Cat : 24X69
Model / Part : EL297UH090XV60C
Lennox Elite EL297DFV, EL297DF110XV60C, 97% AFUE, 110000 BTU, 5 Ton, 2 Stage, Variable Speed Downflow Gas Furnace
Cat : 24X59
Model / Part : EL297DF110XV60C
Lennox Elite EL297DFV, EL297DF090XV60C, 97% AFUE, 88000 BTU, 5 Ton, 2 Stage, Variable Speed Downflow Gas Furnace
Cat : 24X58
Model / Part : EL297DF090XV60C
Lennox Elite EL297DFV, EL297DF070XV48B, 97% AFUE, 66000 BTU, 4 Ton, 2 Stage, Variable Speed Downflow Gas Furnace
Cat : 24X57
Model / Part : EL297DF070XV48B
Lennox Elite EL297DFV, EL297DF045XV36B, 97% AFUE, 44000 BTU, 3 Ton, 2 Stage, Variable Speed Downflow Gas Furnace
Cat : 24X56
Model / Part : EL297DF045XV36B
Lennox Elite EL296E, EL296UH135XE60D, 96% AFUE, 132000 BTU, 5 Ton, 2 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 96W30
Model / Part : EL296UH135XE60D
Lennox Elite EL296E, EL296UH110XE60C, 96% AFUE, 110000 BTU, 5 Ton, 2 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 96W29
Model / Part : EL296UH110XE60C
Lennox Elite EL296E, EL296UH090XE48C, 96% AFUE, 88000 BTU, 4 Ton, 2 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 96W28
Model / Part : EL296UH090XE48C
Lennox Elite EL296E, EL296UH070XE36B, 96% AFUE, 66000 BTU, 3 Ton, 2 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 11Y42
Model / Part : EL296UH070XE36B
Lennox Elite EL296E, EL296UH045XE36B, 96% AFUE, 44000 BTU, 3 Ton, 2 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 96W26
Model / Part : EL296UH045XE36B
Lennox Merit ML196E, ML196UH110XE60C, 96% AFUE, 110000 BTU, 5 Ton, 1 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 19A35
Model / Part : ML196UH110XE60C
Lennox Merit ML196E, ML196UH090XE48C, 96% AFUE, 88000 BTU, 4 Ton, 1 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 19A34
Model / Part : ML196UH090XE48C
Lennox Merit ML196E, ML196UH070XE36B, 96% AFUE, 66000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 19A33
Model / Part : ML196UH070XE36B
Lennox Merit ML196E, ML196UH045XE36B, 96% AFUE, 44000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace
Cat : 19A32
Model / Part : ML196UH045XE36B
Lennox DLSC SLP99V, SLP99UH135XV60D, Up To 99% AFUE, 132000 BTU, 4-5 Ton, Modulating, Variable Speed Horizontal Gas Furnace
Cat : 19A40
Model / Part : SLP99UH135XV60D
Lennox DLSC SLP99V, SLP99UH110XV60C, Up To 99% AFUE, 110000 BTU, 4-5 Ton, Modulating, Variable Speed Horizontal Gas Furnace
Cat : 19A41
Model / Part : SLP99UH110XV60C
Lennox DLSC SLP99V, SLP99UH090XV60C, Up To 99% AFUE, 88000 BTU, 4-5 Ton, Modulating, Variable Speed Horizontal Gas Furnace
Cat : 19A42
Model / Part : SLP99UH090XV60C
Lennox DLSC SLP99V, SLP99UH090XV48C, Up To 99% AFUE, 88000 BTU, 4 Ton, Modulating, Variable Speed Horizontal Gas Furnace
Cat : 19A43
Model / Part : SLP99UH090XV48C
Lennox DLSC SLP99V, SLP99UH090XV36C, Up To 99% AFUE, 88000 BTU, 2-3.5 Ton, Modulating, Variable Speed Horizontal Gas Furnace
Cat : 19A44
Model / Part : SLP99UH090XV36C
Lennox DLSC SLP99V, SLP99UH070XV36B, Up To 99% AFUE, 66000 BTU, 2-3.5 Ton, Modulating, Variable Speed Horizontal Gas Furnace
Cat : 19A45
Model / Part : SLP99UH070XV36B
Why Proper Furnace Installation Matters
A furnace that's poorly installed can cost you more in energy, repairs, and early replacement — no matter how premium the unit. Our certified HVAC technicians follow manufacturer specifications and Ontario safety codes on every job. We assess your home's heating load, choose the right BTU output, and ensure correct venting and airflow before we leave. The result: a furnace that performs the way it's designed to.
Furnace Installation Benefits
- Lower heating costs — modern high-efficiency furnaces combined with proper installation dramatically reduce gas consumption
- More consistent temperatures — correct sizing and venting means no cold spots or short cycling
- Fewer breakdowns — a correctly installed furnace puts far less stress on components
- Extended equipment life — installations done right from day one protect your investment for 15–20+ years
- Better indoor air quality — proper filtration options are incorporated at time of installation
- Lower heating costs through modern efficiency furnaces and proper installation.
- More consistent home temperatures and improved indoor air quality with proper filtration.
- Fewer breakdowns with seasonal priority service options.
- Extended equipment life when maintained by certified technicians.
Our Furnace Installation Process
1. In-Home Assessment
We evaluate your home's size, insulation, ductwork, and existing heating system to recommend the right furnace model and capacity.
2. Professional Sizing
Incorrect sizing is one of the most common furnace installation mistakes. We use industry-standard load calculations to match the right unit to your space — never over- or under-sizing.
3. Safe, Code-Compliant Installation
Our licensed technicians handle all gas connections, venting, and controls in compliance with Ontario Technical Standards and Safety Authority (TSSA) requirements.
4. Smart Thermostat Integration
Every furnace installation includes the option to integrate a smart thermostat for better control, scheduling, and energy savings.
5. Test, Commission & Walk-Through
Before we leave, we test the full system, verify airflow and safety controls, and walk you through operation and maintenance.
Ready to Schedule Your Furnace Installation?
Don't wait until your heating fails in the middle of winter. Contact Direct Air Systems today for a free furnace installation estimate. Our team is available Monday–Saturday and ready to help you choose and install the right furnace for your home.