Better Living Indoors

True Comfort Starts Here


A to Z Sales has been servicing the Midwest’s HVAC needs since 1948 and represents the leading brands in the industry

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We Believe

We stand for the quality and value of products that enable our customers to create comfortable and healthy indoor living

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Work Together

Aligning our partners in distribution, contracting, engineering and construction with the best products available

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Heating Feature for Winter 2019

Check out these Great Heating Lines that we Feature for Winter 2019! Adey – GE Appliance: A Haier Company – Peerless Boilers – Sentinel – Sterling HVAC – Vesta AdeyAdey® is here to protect hydronic heating systems across North America....

As Awareness and High Efficiency Grows, so does the Demand for a Tankless Solution

Traditional water storage tanks can be wasteful and inefficient making them an outdated and unattractive choice when it comes to residential water heating needs.  This is making consumers and contractors re-examine their water heating options causing a growing trend...

Peerless Boiler Rebate Program

Peerless Boiler Presents: The Contractor Rebate Program  This Special Offer is for Installing Contractors Only! Send the completed redemption form with a copy of your invoice from a participating Peerless®distributor no later than December 31st, 2019 to receive your...

Flex Inject® Sealants and Additives

The Problem Minor air conditioning and refrigeration (AC/R) leaks that lead to loss of cooling and loss of savings.  DiversiTech Flex Inject Sealant Advanced & Total are the most effective proven way to permanently seal and prevent those pesky leaks.  Requiring no...

Hacking Residential Boiler Problems

Although homeowners in the colder northern sections of the United States and throughout Canada won’t likely need their heating systems for another three, maybe even four months, our long cold seasons can take a heavy toll on hydronic heating systems which means...

The Woodland House

Have you ever dreamt about a secluded but stately home where you can make your escape to after a hectic week of work and life?  Well, you’re not alone. In fact, far from civilization, but also a far cry from your grandparents cabin, exists a home designed for...

Hydronic Heating Protection with Sentinel

Hydronic boilers throughout America are crucial for keeping commercial businesses, health facilities, and residential living spaces warm during harsh winters and their efficiency and size are perfect for thousands of people.  With so many months of cold, and so many...