Lennox Heating and Cooling

Lennox® HVAC and Smarthome Products

Weis Heating & Cooling is one of the leading Lennox® dealers in the Greater St. Louis area. Our technicians are able to install, repair, and maintain your household's HVAC needs year-round. You can view the Lennox® products we carry below.

The Lennox iComfort® S30 ultra smart thermostat is one of the brand's latest products. The S30 thermostat utilizes GPS technology to interact with your smartphone, allowing homeowners to automate temperature levels for more efficient heating and cooling. We are looking forward to discussing Lennox®'s latest smart home advancement in this video review. Request more information today. Weis Comfort Systems also carries air conditioners, humidity controllers, and other great Lennox® products.

Air Conditioners

See why Lennox® Air Conditioners are among the quietest and most energy-efficient units you can buy.

Air Handlers

See why Lennox® Air Handlers are among the most efficient and quietest you can buy.

Air Purification

Fight off 90% of germs and bacteria with an innovative air purification system from Lennox!

Humidity Control

Control the balance of humidity in your home with a Lennox humidity control system.


Create a fresh-air feel, with little to no energy loss by utilizing a Lennox ventilation system.


Browse our Boilers, designed to integrate with exiting radiator or under-floor heating systems.

Gas Furnaces

View a complete line of Gas Furnaces engineered for perfect warmth and efficiency.

Heat Pumps

Enjoy innovation in every season with precise, quietly efficient Lennox® Heat Pumps.

Mini-Split Systems

Explore the versatility of Mini-Split Systems, ideal for spaces like add-on rooms.

Oil Furnaces

View a complete line of Oil Furnaces engineered for perfect warmth and efficiency.

Packaged Units

Packaged Units are ideal for a self-contained heating & cooling system that installs outside.