Sign up for email news Find a Commercial Alliance contractor:

Resources for Engineer

Engineers choose Lennox for quality products and innovative services.

Sign in to use our engineering software and access technical documents and for immediate access to:

  • Technical information on a complete line of ENERGY STAR® qualified and standard-efficiency products.
  • The most recent innovations for controlling energy usage, temperature, humidity and indoor air quality.
  • Sales tools to help expedite the project.

Talk to Lennox. Trust Lennox.

Our factory-direct ordering system means you work directly with the products’ manufacturer, with access to the engineers who designed the equipment you use.

The National Accounts team can offer additional insight into meeting your clients’ requirements, based on years of helping create superior indoor environments and saving energy.

Lennox® products offer energy efficiency levels and a low total cost of ownership to help you create buildings that meet the criteria of the Leadership in Energy and Environmental Design (LEED) Green Building Rating System™ developed by the U.S. Green Building Council.

Lennox is continually developing innovative new products to meet your customers’ needs at the best value in the industry. That’s why thousands of engineers trust Lennox as their single source for many unitary commercial applications.