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We understand that no other system in your home plays a larger role in your comfort or utility bills than your air comfort system. That’s why we specialize in cost-effective heating solutions, including furnaces, boilers and hybrid heat. We provide a one-year warranty on everything we sell and install, and our service department will assist you for a lifetime.

High-Efficiency Gas Furnaces

We offer a variety of high-efficiency gas furnaces. Our staff can help you determine which furnace best fits the needs of your home or building and your budget.

Oil Furnaces

If oil is your current fuel source, our staff can help you determine which oil furnace best fits the needs of your home, or how you can change your system to natural gas or propane.

High-Efficiency Boiler Systems

Boilers are central heating systems that generate heat from one location in the house and distribute it via piping to the various rooms. The word boiler is somewhat confusing in that hot water systems do not actually boil the water. They typically heat it to about 160 degrees and circulate it through a piping system.


Programmable thermostats are easy to use and provide accurate temperature control and energy savings while allowing you to program your heating and cooling requirements throughout the day.

Internet-capable thermostats offer these same benefits, plus the ability to remotely monitor and control thermostat settings over the Internet.

Zone Controls

A zone-controlled system allows you to adjust the temperature in various parts of your home independently. Each area of the home will have its own thermostat, allowing you to set the temperature for just that area.

High-Efficiency Filters & Filter Systems

Filter systems can ensure that your HVAC system is as clean as possible and that the air in your home is effectively filtered just by using an efficient air filter that is changed regularly.

“We just wanted to express our appreciation for a warm, comfortable house.”
— The Milbraths
“The Neumann service technician took time to explain the different systems in the house so I would know how they operated, being recently widowed. I felt he went beyond what was necessary in order to help me, & I really appreciated it.”
— Lynda R., Kohler


Heating Operations and Maintenance

We provide full-service maintenance, with dedicated staff to ensure on-going system operation and efficiency.

Heating Installation

We provide full and partial heating system replacement, as well as brand new ground-up installations.

“The service tech was very neat, efficient and professional. I could not even tell that he was there… everything was left as he found it!” — Joanne in Sheboygan Falls


High-Efficiency Air Conditioners

Replacing your air conditioning system with a new high-efficiency model may save you in utility expenses, increase the value of your home, clean the air you and your family breathe. We have an energy-efficient cooling system for every kind of home and budget. Be sure to ask us about cash-back, special financing and energy rewards that are available at certain times of the year.

“I just wanted to thank you for all your help & service, I really appreciate it.” — Steve & Cindy Pantel


Indoor air pollution can have a more adverse effect on your family’s health than outdoor pollution. We can supply and install air purifiers and humidifiers, and we’re certified in duct system design and installation.


Keeping your home’s humidity levels in check can significantly improve the health and comfort of your home.


Dehumidifiers are devices that remove the moisture from the air without reducing the overall temperature in an enclosed space. This removal of moisture has many benefits with regard to health, comfort and damage control in your home.


Your heating and cooling system is a vital part of your home and/or business comfort. Yet it is often taken for granted. Much like an automobile, it needs regular maintenance to provide you with maximum comfort, efficiency and reliability. With our Maintenance Agreement, you will enjoy the following benefits for an affordable annual fee.

Savings on Repairs

A 10% discount on all parts and labor charges during normal working hours.

Priority Service

Breakdowns are a remote possibility, but should you ever need service, you get it FAST. Customers holding a Maintenance Agreement receive priority service during emergencies.


You don’t have to remember when maintenance is due. We remind you when it’s time for your heating and cooling inspections and schedule them at your convenience.

Extended Equipment Life

An ounce of prevention is worth a pound of cure. We conduct systematic maintenance that corrects minor problems before they can grow into costly emergencies. Well-maintained systems have longer lives.

Some of the brands we use and specialize in:

Neumann Plumbing & Heating - HVAC Brands totaline nest burnham slant nti

“Oostburg Concrete has been working alongside of Neumann Plumbing & Heating for several years. We appreciate the relationship we have with their business and employees. They excel in providing great work from their whole company in every area. We look forward to future projects with them.” — Gordy Veldboom, Oostburg Concrete Products