Welcome to Ahrens Heating, Inc.

Since 1947, Ahrens Heating Inc. has been serving customers in New Ulm, MN and the surrounding areas. That’s right, this year we are celebrating 70 years of service to our customers and community. We offer quality heating, cooling, indoor air quality systems and yearly check ups on all equipment. As a full-service heating company, our team of professionals work to provide every customer with the highest level of customer service possible.

As your trusted Lennox® Premier Dealer, we offer a complete selection of high-efficiency systems that can save you hundreds of dollars every year on your utility bills. Be sure to check out the helpful links on our residential page to find out which products might work best for you or call us today to meet with a Comfort Advisor to help you pick the right system for your home or business.

As a full-service heating and cooling company, we offer and install an excellent selection of furnaces, air conditioners, heat pumps, whole home humidifiers & dehumidifiers, air to air exchangers, and air purification systems. We also offer residential and commercial air duct cleaning and Radon testing and mitigation. We provide clean & check services on your equipment and repair service by our certified technicians.

Proudly serving Mankato, New Ulm, Sleepy Eye, Springfield, Morgan, Fairfax, Courtland, Nicollet, Hanska, Madelia, St. James, Winthrop, Gibbon, and the surrounding communities.

For service you can trust and rely on for all of your heating and cooling needs, contact Ahrens Heating today! Let the Cordes family at Ahrens help you with all of your HVAC needs.

*6 months 0% financing available to all qualifying customers


No need to struggle over the perfect comfort. Lennox is a leading provider of innovative, home heating and cooling systems. Our high-efficiency, residential air conditioners, furnaces and HVAC systems help maximize comfort while reducing utility costs. Plus, Lennox air filters, humidifiers and dehumidifiers help create healthier and cleaner indoor environments. Call today and save with REBATES UP TO $1,500

START WITH UP TO $1,200 IN REBATES.* Save on a complete qualifying Lennox® home comfort system that includes a gas furnace or blower coil, an air conditioner or heat pump and thermostat. Enjoy additional product rebates when you purchase an iComfort® S30 Smart thermostat, iHarmony ® zoning and a PureAir™ system.

GET UP TO A $100 REBATE ON a WI-FI THERMOSTAT.* Save now on the iComfort® S30 and save every month on utility bills. Anytime your routine or weather changes, the iComfort S30 smartly adapts to reduce your energy costs.

GET UP TO A $100 REBATE ON ZONING.* Enhance your comfort and savings with iHarmony® zoning, a major advance in precision climate control.

GET UP TO A $100 REBATE ON PUREAIR™.* Enjoy more savings and fewer pollutants with a PureAir™ system, which cleans the air inside your home better than any other single system you can buy.

*Some restrictions apply. System rebate offers range from $200–$1,500. Rebate offer is valid June 19, 2017 through August 11, 2017 with the purchase of qualifying Lennox products. Cannot be combined with any other offer. Additional add–on rebates for iComfort® S30 Thermostat, iHarmony® Zoning System and PureAir™ Air Purification system valid with a qualifying system purchase only. See your participating Lennox dealer for complete details.