Topline is Chicago’s Authorized Lennox Dealer
Topline is proud to be an Authorized Lennox Dealer. Lennox is a leading provider of innovative, home heating and cooling systems. Our high-efficiency, residential air conditioners, furnaces and HVAC systems help maximize comfort while reducing utility costs. Plus, Lennox air filters, humidifiers and dehumidifiers help create healthier and cleaner indoor environments.
Lennox® furnaces are some of the most efficient and quietest heating systems you can buy*. They’re engineered for perfect warmth and savings.
Explore programmable thermostats, digital thermostats, temperature control systems, and other comfort controls from Lennox, the leader in home air conditioning.
Exacting precision makes Lennox® air conditioners among the quietest and most energy-efficient units you can buy.
Enjoy innovation in every season with precise, quietly efficient Lennox® heat pumps that keep your life simply perfect.
Lennox® air handlers are among the most efficient and quietest you can buy.
Indoor Air Quality
Indoor air quality systems including home air cleaners, air purifiers, home air filters, and more from Lennox, the leader in home air quality.
Self-contained units engineered for high performance and easy installation
For homes in northern regions that rely on boilers for heat, there’s no better choice than Lennox.
With a low-profile design and a range of capacities, Lennox® garage heaters bring reliable and efficient warmth to almost any garage or workspace.
When only certain rooms need heating and cooling, Lennox® Ductless Mini-Split heat pumps and air conditioners provide a smart, flexible solution.