Tempstar Heating and Cooling Products

No matter what type of service you’re looking for, the experts at Steve Radaj Heating & Cooling can handle any air conditioning or furnace job in the Montello area. Whether you want to have a new system installed or you need someone to service your existing system, we have the tools and experience to get the job done right.



Furnaces are among the most popular traditional home heating products, and you’ll have a lot of options when you go to pick one out. It can actually be a bit overwhelming to sort through all of the options on your own. Whether you find yourself in the market for a new furnace but overwhelmed by all of the systems available today, or you simply need service for your existing furnace, call Radaj Heating & Cooling. We offer a full range of Tempstar furnace installation, maintenance and repair services to customers throughout the Montello area and we would be glad to help you with your next furnace installation.

If you need to replace your existing furnace, our experts will help you sort through your options to find the best Tempstar unit to suit your needs. Once that’s done, we’ll take care of every part of the installation process including removing and disposing of your old home heating system. And any time you need maintenance or repairs, we’ll be there to keep your furnace up and running properly.

View our Tempstar Gas Furnace Selection

Furnace Installation, Maintenance & Repair

The installation of your furnace is something you want to make sure is done right the first time. When you hire Radaj, you can be confident that everything will be handled properly and professionally. We’ll have your old heating system out and your new furnace in place before you know it. And whenever you need maintenance service or repairs, our Montello metropolitan area furnace experts are only a phone call away.


Gas furnaces use the Annual Fuel Utilization Efficiency or AFUE. The higher the AFUE, the greater the efficiency and the greater your energy savings potential.

Because some of the heating potential of fuel is lost during furnace operation, no furnace is considered 100% energy efficient. The AFUE percentage tells you the amount of fuel burned that actually goes toward heating your home on an annual basis.

Prior to the 1992 federal government regulations, most gas furnaces were manufactured with standard efficiencies ranging from 60% to 78% AFUE. If you have one of these older units and replace it with a new Tempstar 90%+ AFUE, you can save as much as 40% on your utility bills!

Air Conditioners & Heat Pumps


We offer a full range of air conditioning and heat pump systems for installation. These include the ductless split systems that are ideal for cooling smaller spaces or individual rooms. They can be installed in many spaces that aren’t accessible for other types of air conditioning systems too, making them a more universal option, particularly if you don’t have ductwork in your home already.

If you’re looking for something a bit more powerful, though, or if you already have ducts in place, we also offer packaged air conditioning & heat pump systems. These are perfect for moderate to large homes and can keep you quite comfortable all through those long summer months.

And if you’re trying to cool a very large home, we can also install large central air conditioning systems. Our technicians have extensive experience with the workings of these large systems and can easily handle a complicated, large–scale installation.

Central air conditioners and heat pumps use the Seasonal Energy Efficiency Ratio or SEER as the measurement. The higher the SEER, the greater the efficiency and the greater your energy savings potential.

View our selection of Tempstar Air Conditioners
View our selection of Tempstar Heat Pumps

Indoor Air Quality

It’s certainly important that you and your family have a comfortable, temperature controlled indoor environment all year long. But you also want to know that the air you’re breathing is clean and safe. Indoor air pollution is a real problem and not something many people think about, but if you really want to make sure your Montello area home is as safe, clean and comfortable as possible, it’s a good idea to invest in some sort of indoor air quality system. At Steve Radaj Heating & Cooling, we offer a wide variety of products and services to improve the air quality inside your home.

Air Cleaners

Air cleaners are an important element to include in your home heating, cooling and indoor quality system. They help to make sure that the air your family is breathing every day is clean and free of harmful contaminants. And many of them can even help to eliminate unwanted pet and smoke odors from your Montello area home.