Schroeder Plumbing & Heating Inc.

In 1928, Lennox Furnace Companyone of Americas leading manufacturing interestscreated Armstrong Furnace in Columbus, Ohio. For nearly a century, weve kept ourselves at the forefront of quality, ingenuity and professionalism, creating heating and cooling products that exceed the expectations of customers and HVAC professionals alike. Today, our products are still proudly assembled in the United States under the Allied Air name.