Furnace Products

Depend on Merts Heating & Air Conditioning to keep your South Chicagoland home comfortable inside, no matter what the thermometer says outside. Featuring efficient furnaces by Bryant, Merts has been delivering “Quality and Honesty Since 1952.”

Forced air furnaces

These have become the mainstay of home heating. Most burn natural gas or propane. Advantages include relatively low upfront costs compared to more exotic forms of heating and natural gas is generally the cheapest fuel.


Furnace efficiency is measured by the AFUE (annual fuel utilization efficiency) rating. If a furnace has an AFUE of 75 it means 75% of the heat produced goes to heating the home and 25% is considered to be wasted. Not too many years ago furnaces with an AFUE of 50 to 70 were common. Today, an AFUE rating of 80 is considered a minimum and high-end models can be as much as 98% efficient. It doesn’t take a degree in math to know replacing your old furnace can save you a bunch of money on your monthly bills.

So, what’s the right number?

Merts will show you several options, so you can see how much money you can save each month. After you see the numbers it’s up to you to decide which heating option is worth the investment to fit your needs and budget.

Keeping your home comfortable

This is a tough job in a diverse urban area like Cook County, IL. The challenges include old homes that could have sub-standard insulation, middle class homes, and newer homes with thousands of square feet to keep warm during our very cold winters. The Merts technicians also need to consider the type and quality of construction to provide the most effective and cost-efficient furnace.

Thousands pick Merts Heating & Air Conditioning for their furnace needs

Merts serves other Cook County cities like Matteson, Park Forest, Chicago Heights, Glenwood, and Lynwood. Our motto is, “Quality and Honesty Since 1952.” Let us show you what we mean by choosing Merts for all your furnace repair, replacement, and maintenance needs.

Illinois Location:

3102 Louis Sherman Dr
Steger, IL 60475

Indiana Location:

528 Sheridan Street
Crown Point, IN 46307​