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


Every Lennox® product has been engineered to deliver best-in-class comfort and efficiency. And when two or more Lennox products are working together as part of a system, the results are truly outstanding. Whatever your home, lifestyle and budget, there’s a Lennox system that can meet your needs. Call today and save with REBATES UP TO $1,700* OR LOW MONTHLY PAYMENT FINANCING.

START WITH UP TO $1,300 IN REBATES.* Save on a complete qualifying Lennox® home comfort system that includes air conditioner or heat pump, gas furnace or air handler and thermostat.

GET UP TO A $150 REBATE ON a WI-FI THERMOSTAT.* With the Schedule IQ feature, you only need to program the thermostat once. Whenever there's a change in your routine, the iComfort® S30 adapts heating and cooling to match.

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

GET UP TO A $150 REBATE ON PUREAIR™.* Cleans the air in your home better than any other single system you can buy, doesn’t produce ozone and that means cleaner air in every room.

*Some restrictions apply. System rebate offers range from $250–$1,700. Rebate offer is valid March 13, 2017 through June 9 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.

**Financing available to well qualified buyers on approved credit at an 0% APR for up to 70 months, with equal monthly payments. You may prepay your account at any time without penalty. Financing is subject to credit requirements and satisfactory completion of finance documents. Any finance terms advertised are estimates only. Normal late charges apply. See your Truth in Lending Disclosures for more information.