Sign up for email news Find a Commercial Alliance contractor:

Performance and Reliability

Reduce costs now and in the long run.

Excellent performance and reliability are the hallmarks of every Lennox® product. Designed for maximum efficiency and durability, S-Class™ 35- to 50-Ton rooftop units from Lennox help businesses control construction cost now and in the future. Optional accessories can save even more.

Slash Energy Costs

Installing units with economizers helps save energy by allowing outdoor air to be used for cooling.