Better Living Indoors


Trusted in more than 500,000 homes, the Unico System® fits into homes where conventional heating and cooling units can’t, providing your beautiful home with comfort and efficiency for years to come!  Unico, Inc. is now considered the leader in Small Duct High Velocity (SDHV) heating and cooling systems. 

For many individuals seeking cleaner air and healthier living conditions, learning about indoor air quality solutions is a natural first step.  Energy Efficient and backed by a 100% Satisfaction Guarantee, Air Oasis products remove allergens, fight unwanted odors, kills germs and mold; making Air Oasis an ideal solution for healthier living conditions.   

GeneralAire® offers a wide variety of 
whole house residential air quality solutions 
using the latest in indoor air technology.  Installed in your home's HVAC system by a qualified HVAC Contractor, GeneralAire® and HealthyAire® IAQ products protect you and your family by ensuring clean, healthy and comfortable indoor air quality throughout your home.

AquaMotion is a US manufacturer of circulators and pumps for the residential and commercial heating and plumbing market who strive to design the most energy efficient, high performance, and sustainable circulators.

Founded in 1998, Samsung HVAC imported and distributed Samsung products for the HVAC market in the USA & Canada.  Their Mission is to lead the HVAC industry with the most technologically advanced products and highest quality from a best in class organization and to utilize all related Samsung technologies to improve the quality of life.

More Great Manufacturers

Our Vision is to be the number one manufacturers representative for energy efficient building comfort solutions in the Midwest and A to Z Sales is proud to represent more than 20 fantastic manufacturers.   

A to Z Sales has been servicing the Midwest’s HVAC needs since 1948 and represents the leading brands in the industry.  We stand for the quality and value of products that enable our customers to create comfortable and healthy indoor living.

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