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Gas Furnaces

Gas Furnace Services in Keene, NH

GAS-FIRED warm air Furnace Repair in Cheshire, Grafton & Windsor Counties

In the frosty New Hampshire winters, a reliable and efficiently functioning furnace is not just a luxury but a necessity. When it comes to gas-fired warm-air furnace services in Keene, one name stands out for its commitment to excellence –Bergeron Mechanical Systems. With a strong emphasis on proper design and installation, we have been serving the community with top-notch gas furnace solutions that ensure comfort, efficiency, and peace of mind.

Depend on our experienced team for quality furnace services, including: 

  • Gas furnace installation 
  • Gas furnace replacement 
  • Gas furnace repair 
  • Gas furnace maintenance 


A gas-fired warm air furnace is a heating system that operates by burning natural or propane gas to generate warm air for indoor spaces. Unlike boilers, which heat water to distribute warmth, gas furnaces utilize forced-air systems to circulate heated air through ducts and vents. The process begins with the combustion of natural gas in the furnace, producing hot combustion gases. These gases then pass through a heat exchanger, transferring their thermal energy to the surrounding air. The warm air is then distributed throughout the building via ductwork, providing efficient and rapid heating. Gas furnaces are known for their cost-effectiveness, quick heating capabilities, and the ability to maintain a consistent temperature. In contrast, boilers heat water, which is then circulated through radiators or underfloor heating systems, offering a different approach to achieving indoor warmth.

Benefits of gas furnaces

Gas fired warm air furnaces offer numerous advantages that make them a preferred choice for heating solutions, outshining other alternatives such as oil furnaces. The efficiency and convenience of gas furnaces contribute significantly to their appeal. Here's a breakdown of the key benefits:

  • Cost-Effectiveness: Gas tends to be more affordable than oil, making gas-fired warm-air furnaces a cost-effective option for heating homes.
    The efficiency of gas combustion translates to lower energy bills, providing long-term savings.
  • Environmentally Friendly: Gas is a cleaner-burning fuel compared to oil, reducing the environmental impact and lowering greenhouse gas emissions.
  • Quick and Consistent Heating: Gas furnaces provide rapid and consistent heating, ensuring that your living space reaches a comfortable temperature promptly.
  • Space Efficiency: Gas furnaces typically occupy less space than oil furnaces, making them a practical choice for homes with limited utility space.
  • Reliability and Durability: Gas furnaces are known for their reliability, with fewer breakdowns and maintenance issues compared to some alternative heating systems.
    The durable components of gas furnaces contribute to their longevity, providing homeowners with a reliable source of warmth.

Gas fired warm air furnaces offer a compelling combination of cost-effectiveness, environmental friendliness, efficiency, and reliability, making them a standout choice in the realm of heating solutions, surpassing even traditional oil furnaces in various aspects.

Trust our team to keep you warm and cozy while prioritizing energy efficiency and optimal gas fired warm air furnace performance. Call (603) 733-4594 or contact us online to request a free estimate! Your invoice will reflect exactly what we quote. 


  • Did you know that the average service life a gas fired warm air furnace in New England is just 13 years?
  • Did you know that most gas fired warm air furnaces are at least 95% efficient (meaning only $0.05 of every $1.00 is wasted during operation)?
  • Did you know that a gas furnace teamed with a Mitsubishi Electric Hyper Heat H2i Heat Pump system is one of the most efficient air-sourced methods of heating your home (and you get central air conditioning too)?  This type of “HYBRID” system allows the best of both worlds…efficient heating and cooling with a Mitsubishi Electric heat pump and back up with fossil fuel if needed. 
  • Did you know that if you have an existing gas fired warm air furnace at your home or business that is over 15 years old you could save hundreds of dollars per year on your heating bill by simply having it properly serviced and cleaned?
  • Did you know that many gas  furnace users DO NOT regularly have the heating system checked annually?  Your furnace should be inspected annually for blockages or degradation to keep building occupants safe. 
Areas We Serve

Bergeron Mechanical Systems is proud to serve Keene, New Hampshire and surrounding areas.

The Significance of Proper Gas fired warm air Furnace Design & Installation

A well-designed and properly installed gas fired warm air furnace is the cornerstone of a comfortable and energy-efficient home. Bergeron Mechanical Systems recognizes that every home is unique, and there is no one-size-fits-all solution for furnace systems. Our team of experienced professionals considers factors such as the size of the house, insulation quality, and specific heating needs before designing a furnace system.

Proper installation is equally crucial. Even the best-designed furnace can underperform if not installed correctly. Our technicians are skilled and well-versed in the latest industry standards. They ensure that every component is installed meticulously, from ductwork to ventilation, creating optimal airflow and heat distribution.

For All New Mitsubishi Electric Installations We Are Proud to Offer a Full, 12-Year Parts & Labor Warranty
The ONLY 12/12/12 Total Home Comfort Guarantee in the Area!

Addressing a Wide Range of Gas gas fired warm air furnace Problems

When it comes to the functioning of a furnace, a spectrum of issues can arise, each presenting its own set of challenges. From unsettling noises echoing through the home to rooms unevenly warmed, these telltale signs indicate that a heating system might be grappling with underlying problems. In such instances, our seasoned technicians possess the insight and expertise to address a comprehensive array of furnace issues.

We regularly repair all types of furnace problems, including: 

  • Ignition problems – If a furnace struggles to ignite or stay lit, a malfunctioning ignition system could be the cause. Skilled technicians can diagnose and repair these issues, ensuring consistent heating.
  • Blower motor failures – Uneven temperatures and reduced comfort may result from a malfunctioning blower motor. Professional experts can swiftly repair or replace faulty blower motors, restoring proper airflow and efficiency.
  • Thermostat malfunctions – Inaccurate temperature control due to a faulty thermostat can lead to discomfort. Technicians can calibrate or replace thermostats, ensuring a comfortable indoor environment.
  • Airflow obstructions – Clogged filters or blocked ducts impede airflow, forcing a furnace to work harder. Professionals can identify and remove obstacles, allowing the furnace to operate optimally.
  • Gas leaks and safety concernsGas fired warm air furnaces require careful attention to prevent safety risks like gas leaks. Trained technicians can detect and address these concerns swiftly, ensuring the safety of a household.
  • Unusual noises – Strange noises from a furnace may indicate mechanical problems. Experts can diagnose and resolve these issues, preventing further damage and restoring quiet operation.

Schedule Your Gas fired warm air furnace Service Today

At Bergeron Mechanical Systems, we believe that an informed customer is an empowered customer. We are committed to educating our clients about furnace maintenance, troubleshooting, and energy-saving practices. Homeowners can make well-informed decisions about their heating systems with our informative resources and expert guidance.

Don't let furnace problems linger. Schedule a professional assessment with our team today at (603) 733-4594 to diagnose any issues and ensure optimal furnace performance.



Hear what our employees and partners have to say about working with Bergeron Mechanical Systems!

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Our Reputation Speaks for Itself

Read Our Reviews

At Bergeron Mechanical Systems, your satisfaction is our priority! See for yourself what our customers have to say about working with us.

    "Technicians are polite, attentive, thorough, and professional."
    Very pleased with our Mitsubishi mini-split heat pump system, and the service contract. Technicians are polite, attentive, thorough, and professional. We purchased from Bergeron because of their reputation, and we have not regretted it.
    - Brian A.
    "Mini-splits are complex and require attention to detail, which is why I used Bergeron"
    Mini-splits are complex and require attention to detail, which is why I used Bergeron. They did the job right, from collaborating with me on the design and configuration to getting the right pieces installed with excellence and precision. Highly recommended.
    - Rob W.
    "Professional Across the Board"
    Their design was innovative and minimized the visibility of ductwork when compared to a competitor's proposal.
    - Ivy B.
    "5 Stars!"
    The installation process was done on time and with great care and courtesy both inside and outside our home.
    - Dave D.
    "Highly Recommend!"
    The installers were professional and explained the whole unit and its operation clearly. Done ahead of schedule.
    - Michael K.
    "Very Happy Customer!"
    Ryan and the team at Bergeron did a fantastic job with my HVAC installation.
    - Cindi M.
    "Fantastic Service!"
    My initial meeting covered every aspect of what they do, what I needed, and my options at completion.
    - Dawn B.
    "Proud Employee and Customer"
    This is the best company I have ever worked for! I am not only an employee, but an incredibly satisfied customer as well.
    - Thomas H.