We Keep
Your Home
Warmer Efficient Cleaner Comfortable
Year Round

#1 Heating & Cooling Contractor #1 in Furnace Repair & Maintenance #1 Gas Fitting & Piping Contractor #1 Fireplace & Gas Stove Installer

Sault Ste. Marie's Top

Heating Services

Premium Heating Services in Sault Ste. Marie

Maximize Energy Efficiency with DNM Heating & Cooling

At DNM Heating & Cooling, we are committed to helping homeowners in Sault Ste. Marie achieve optimal energy efficiency for their heating systems. Our team of certified technicians is on standby 24/7 to offer emergency services whenever you need us.

Contact us directly or schedule a free home consultation to see how we can improve your home’s heating efficiency in Sault Ste. Marie today.

Seamless Furnace Installation

DNM Heating & Cooling ensures a smooth furnace installation process, allowing homeowners to resume their daily activities without hassle. When you choose our skilled and experienced technicians, you can expect an efficient, thorough, and stress-free installation. Upon arrival, our licensed technicians will safely remove your old furnace to make way for the new one.

After removing and disposing of the old furnace, we ensure your new heating system is correctly and safely installed. This includes connecting it to the duct system and ventilation pipes. Once all connection points are sealed, the technician will connect your furnace to its gas or electrical power supply and perform a thorough test to confirm everything is functioning properly.

Understanding How a Furnace Works

A furnace heats your home by pushing warm air through ducts installed throughout the house, distributing heat to each room via air vents. Furnaces can be powered by natural gas, fuel oil, or electricity. The size of your home and other factors determine the energy required to maintain a comfortable temperature. Hence, having the right furnace installed is crucial for maximizing monthly energy efficiency.

Choosing the Right Furnace

Selecting the appropriate furnace for your home is essential to ensure efficient heating with minimal energy use. An oversized furnace can lead to decreased energy efficiency, a shorter lifespan, increased repairs, and uneven heating. Conversely, an undersized furnace will struggle to heat your home adequately, leading to higher energy bills and uneven temperatures.

Our professional technicians at DNM will assist you in choosing the right-sized furnace, taking into account factors such as:

Square footage
Home age
Number of windows
Ceiling height
Type of ductwork
Number of floors
Sun exposure

By evaluating these factors, we provide tailored recommendations to maximize your energy efficiency and comfort.

Is It Time for a New Furnace?

Even with proper maintenance, a furnace’s efficiency decreases over time. Most furnaces last between 10 to 15 years. Homeowners should consider replacing their furnace around the 10-year mark to avoid higher energy bills and costly repairs. If you’re unsure about whether it’s time to replace your furnace, contact DNM Heating & Cooling for expert advice.

Signs You Need a New Furnace

Recognizing the signs of a failing furnace can help you avoid unexpected damages and expensive repairs. Look out for these indicators:

The furnace won’t turn on
Discolored pilot light (yellow instead of blue)
Difficulty maintaining a comfortable temperature
Strange noises (rattling, clicking, humming, banging, squealing)
Furnace age (over 10-15 years)
Rising energy bills
Strange odors
Frequent thermostat adjustments
Unexplained health issues (flu-like symptoms, headaches)
Extremely dry and dusty air
Constantly running blower motor

By evaluating these factors, we provide tailored recommendations to maximize your energy efficiency and comfort.

If you notice any of these signs, it may be time to replace your furnace. For all your heating needs in Sault Ste. Marie, contact DNM Heating & Cooling or book a free consultation online for more information.

Your Local HVAC Experts

Why DNM?

Three simple reasons.


With decades of combined experienced serving the Sault, our team brings a deep understanding of heating and cooling systems in our climate. Our seasoned technicians are equipped with the knowledge to handle installations, maintenance, and repairs with precision and the latest technology in the HVAC industry. We ensure that every system we work on is optimized for efficiency and reliability.


At DNM Heating & Cooling, we are committed to upholding the highest standards of integrity. We build trust with our clients through clear communication, ethical business practices, and a steadfast commitment to their interests. From honest diagnostics to fair pricing, our primary goal is to provide you with the best possible service and ensure your HVAC needs are met with the utmost professionalism.


Transparency is at the core of all our interactions. DNM offers straightforward pricing with no hidden fees. We provide clear, detailed quotes, without pushy sales tactics, keeping you well-informed throughout the entire process. This clarity allows you to plan and budget with confidence, ensuring a seamless and stress-free experience from initial contact to project completion.

The DNM Gauarantee

Your Satisfaction
is Our Success

As the top provider of residential HVAC services in Sault Ste. Marie, we go above and beyond to meet your needs with professionalism, expertise, integrity, and transparency. We offer expert installations, repairs, and maintenance tailored to all your heating and cooling requirements.

Our commitment to quality workmanship and customer satisfaction explains why more residents are choosing DNM Heating & Cooling every day.

Find out why we are the preferred choice for enhancing home comfort and efficiency in Sault Ste. Marie.


Any questions?

High-efficiency furnaces provide several benefits, including lower energy bills due to better fuel utilization, reduced environmental impact because of fewer emissions, and enhanced comfort through more consistent heating. Additionally, they often have advanced features such as variable-speed blowers that improve indoor air quality.

It’s recommended to schedule maintenance for your furnace at least once a year, preferably before the heating season begins. Regular maintenance helps ensure your furnace operates efficiently, reduces the likelihood of breakdowns, and extends the lifespan of the unit.

Signs that your furnace may need repair or replacement include uneven heating, strange noises (like banging, rattling, or squealing), frequent cycling on and off, increased energy bills, a yellow pilot light (indicating a possible gas leak), and an inability to maintain a consistent temperature. If your furnace is over 15 years old and experiencing frequent issues, it might be time to consider a replacement.

Choosing the right size furnace involves considering factors such as the square footage of your home, the number of windows, insulation levels, ceiling height, and the local climate. An HVAC professional can perform a load calculation to determine the appropriate furnace size for optimal efficiency and comfort.

Heat pumps offer several advantages over traditional furnaces, including the ability to provide both heating and cooling, greater energy efficiency (especially in moderate climates), and lower operating costs. They also have a smaller environmental footprint since they transfer heat rather than generating it through combustion.

Yes, a heat pump can provide both heating and cooling for your home. In the winter, it extracts heat from the outside air (even in cold temperatures) and transfers it indoors. In the summer, the process is reversed, and the heat pump removes heat from your home and releases it outside.

Heat pumps should be serviced at least twice a year—once before the heating season and once before the cooling season. Regular maintenance ensures that the system operates efficiently and can help identify and address potential issues before they become major problems.

Heat pumps can be significantly more energy-efficient than traditional heating systems. They can produce up to three times more heat energy than the electrical energy they consume. This efficiency can lead to lower energy bills, especially in milder climates where heat pumps perform best.

If your heat pump is not heating properly, check the thermostat settings first to ensure they are correct. Make sure the air filters are clean and not blocking airflow. If these steps don’t resolve the issue, it could be due to low refrigerant levels, a malfunctioning compressor, or other technical problems. Contact a professional HVAC technician for a thorough inspection and repair.

The lifespan of a furnace or heat pump can vary depending on the type, quality, and level of maintenance. On average, a well-maintained furnace can last 15-20 years, while a heat pump typically lasts 10-15 years. Regular maintenance and timely repairs can help extend the lifespan of these heating systems.

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Part of the Family

Being a member of DNM Group means you can be assured of our dedication to maintaining the highest level of customer service and craftsmanship that stands out from the competition. We call this commitment to excellence ‘The DNM Difference,’ setting new standards in quality and reliability across all our operations.