Services We Provide
Expert Furnace and Air Conditioning Services
Gas Furnaces
Welter Heating exclusively installs Trane high-efficiency natural gas furnaces because they are the highest-quality, most efficient, and most durable furnaces available on the market today.
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Furnace Repair
Welter Heating provides our customers emergency 24-hour furnace repair throughout the greater Minneapolis-St. Paul area. While we do not service boilers, no matter what kind of furnace you have or what the issue is, we can solve it.
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Furnace Maintanence
Our $99 Furnace Maintenance Clean & Safety Check can substantially improve the efficiency and extend the lifespan of your furnace. Welter experts recommend scheduling maintenance once a year.
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Central Air Conditioning
Welter Heating exclusively installs Trane central air conditioners because we have found them to be the most efficient, high-performing, and reliable units available today.
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Air Conditioner Repair
Our professionals can repair and maintain central air and air source heat pump units from all major brands, and we exclusively service Mitsubishi ductless systems to ensure they’re operating at peak condition.
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Mitsubishi Ductless Air Conditioning
Welter Heating installs and services only Mitsubishi ductless air conditioners—ideal for homes without ductwork or for cooling specific rooms like sunrooms, bedrooms, or home offices. These high-efficiency systems offer quiet, targeted comfort and are a perfect fit for many Twin Cities homes.
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Air Purifiers
Our full-service team repairs, replaces, and installs all manner of air-to-air exchangers, whole-home dehumidifiers, humidifiers, central air cleaners, and electronic air cleaners.
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Over Four Generations of Service You Can Trust
The Ray N. Welter Heating Company has been owned and operated by the same family since it opened in Minneapolis in 1904. Ever since then, we have provided top-quality, trusted services to our customers and neighbors. It is our privilege to serve our community, and we hope to continue to do so for many generations to come.
State-certified experts
Will repair any brand or size of residential AC unit or furnace.
Available 24/7 for emergency repairs for our customers
100+ Years of Service By The Numbers
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Customer Testimonials
Hear From Our Customers
These guys were my second call when my furnace stopped working properly. The first company I used sent a tech out who said the furnace needed to be replaced, and gave me a quote, but said he "jiggled a wire" and got it running again for the time being.
When it went out again the other day, I called Ray N. Welter. Their tech, Ralph, fixed the problem in half an hour. He told me the furnace is pretty old, but his fix should get me through the winter "and maybe a couple more," and then gave me a quote that was lower than the first company.
These guys are rad.
Dan J.
Minneapolis, MN
Furnace stopped working. When that happens after hours you learn a lot about companies. Today I called RW and got a person on the phone that knows about furnaces and he dispatched a service person Phil within 2 hours. I called them based on personal refer and reviews. They are excellent. Despite having a very old furnace it was the second time that this company said I did not need to replace. If I did replace it I want a Trane and RW would do to the work. For now I will call them for fall/spring tune ups and love that they don't have the club memberships etc. Just good solid customer service for all customers. A really ++ experience. Family run business with integrity.
Kathleen d.
Minneapolis, MN
If you need superior service this is your company!!! We were in Florida experiencing our first year as "snowbirds" when our furnace (in Bloomington) stopped working. Rick Welter personally took our call and not only sent a technician to our cold home, but checked on it for the next two days until our new heating unit could be properly installed. Phenomenal service!
In addition to the great service, their pricing was very competitive. I highly recommend this company for all of your heating or A/C needs!!!
Michael L.
Minneapolis, MN
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HVAC Info You Can Use
Learn how to maintain your HVAC system with the latest advice from our experts.
- May 3, 2025
Air conditioning is one of the best ways to stay cool on a hot summer day. That’s why staying current with routine maintenance and changing out your air filter every month are so important. Still, even the most dutiful homeowners’ air conditioners can run into problems sometimes. If your AC is making water sounds, it…
- April 28, 2025
Your home is supposed to be your oasis. But pollen, dander, dust, and other irritants in the air can quickly reduce the air quality of your residential paradise. While air filters can certainly help, most air filters are not fine enough to trap irritants like mold spores and dust that cause allergy flare ups and…
- April 10, 2025
When you’re managing a household, every cent counts. Control of your energy costs is a great way to manage your home budget while keeping your family cool. Still, it can be challenging to figure out what the impact of even one-degree change could have on your bottom line. That’s why we’ve done the math for…
- March 10, 2025
Spring has arrived, and so have warmer temperatures. As the weather warms up, you’ve already started to hang your coats back in closets, throw boots into baskets, and dump scarves back in storage. You no longer need layers to keep you warm—and your furnace no longer needs to keep the heat pumping throughout your…