Air Conditioning

We have the expertise to ensure the air in your home will be cool, refreshing and comfortable.

Christensen Heating and Air Conditioning offers some of the most efficient and reliable Air Conditioners manufactured today.

Don’t risk the indoor comfort of your home. For long-lasting performance, install an Lennox central air conditioning system in your home. Keep your home cool, save energy costs, and enjoy what we believe to be industry-leading warranty protection. Compare the features and benefits of a Lennox central air conditioning system and you will discover why more and more homeowners choose the Lennox brand.

Ductless Systems

Get reliable heating and cooling without the ductwork.

Built for superior comfort, our combination ductless heating and cooling systems can be easily mounted on the wall or in the ceiling. Ductless HVAC systems are a flexible, high-efficiency choice for homeowners looking for simple zoned comfort solutions.

Christensen Heating & Air Conditioning in Appleton, WI is a leading distributor of Mitsubishi ductless mini split air conditioning systems. We offer single room and multi room systems with heat pumps and inverter technology. These ductless mini splits are among the most energy efficient in the industry.


Think of your furnace as the warm heart of your home.

In the winter, your furnace is essential to keep your home or business warm. During the summer, it plays a vital role in moving refreshing, conditioned air from your cooling system. All year long, your furnace provides constant air circulation to keep you more comfortable. Not only that, but many of our furnaces do it all so efficiently you will be surprised when you see how low your utility bill is.

Furnaces produce heat through the burning of natural gas in the furnace’s burner. The heat produced from this process then passes through a heat exchanger. Air from your home’s return air ducts is blown over the heat exchanger, thus warming the air. Christensen Heating & Air Conditioning specializes in furnaces with high efficiently, that will save you money


The boiler is one of the most widely used heating systems in the Fox Valley.

Boilers are known for clean and even heating. It supplies steam or hot water through radiators installed throughout your home or business, or it can power a radiant heat system. It depends on your needs and your budget. As important as the quality of the equipment itself is the quality of the installation. You need to make sure that you hire a professional Christensen Heating & Air Conditioning who can install an appropriately sized system that will give you years of excellent service.

Indoor Air Quality

Indoor air quality is important to your health as well as damage to your home and belongings.

Everything from minor sinus irritations, to asthma attacks, to dry skin, to cracks in wood floors and furnishings is affected by indoor air quality.

You can protect your home and family from poor Indoor Air Quality.  We can help you identify sources of poor indoor air quality and provide the right solutions for your home and your family.  Get rid of itchy dry skin, annoying static shocks and other uncomfortable situations.  Battle the contaminants that lead to everything from minor sinus irritations to severe health complications.  Protect your home from wallpaper peels, wood cracks, mold and mildew.  Save on energy costs with automatic solutions.

How to Decide Between New HVAC Systems

Christen Heating and Air Conditioning is here to help.

The options can be overwhelming for residential and business owners alike. Every structure has its own considerations, every family may have their own definition of comfort, and every budget has  options available. We promise to work with you and find the best HVAC solutions for your indoor comfort.

Customer Service is Our #1 Priority

Contact Us

1609 W Wisconsin Ave
Appleton, WI 54914
Office Hours
Monday – Friday
7:00AM – 5:00PM

Emergency Service