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Cornett Heating & Cooling

We service the Serverna Park, Annapolis, Arnold, Pasadena, Glen Burnie, Millersville and surrounding areas.  Reach out to us if you’d like a consultation, 410-647-6979

About Cornett Heating & Cooling


Cornett Heating & Cooling, located in Severna Park, Maryland, is your premier destination for top-quality HVAC (Heating, Ventilation, and Air Conditioning) services. Our team of highly trained and certified technicians is dedicated to providing exceptional HVAC solutions for both residential and commercial customers. When it comes to HVAC installation, maintenance, and repairs, we have the expertise to keep your indoor environment comfortable year-round. At Cornett Heating & Cooling, we prioritize energy efficiency and sustainability, offering eco-friendly HVAC options to help you reduce your energy bills and environmental impact.


As your trusted HVAC company in Severna Park, we take pride in our commitment to customer satisfaction and our deep roots in the local community. Our website, https://www.cornetthvac.com/, showcases our professionalism and the range of services we offer. Whether you need a new HVAC system installed, routine maintenance, or emergency repairs, you can rely on Cornett Heating & Cooling to deliver reliable, cost-effective solutions. Contact us today for all your heating and cooling needs, and experience the difference our expertise makes in keeping your home or business comfortable and energy-efficient.


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Our Work

1410 Andre Street , Baltimore, MD, US

This was a new Goodman 60k gas furnace replacement that Cornett Heating & Cooling installed in Baltimore Maryland. As a top HVAC company in Baltimore, Cornett HVAC can handle any job. Here is a little information on what a Goodman 60K gas furnace brings to the party:


Goodman Manufacturing is a well-known manufacturer of heating and cooling equipment, including gas furnaces. A 60,000 BTU (British Thermal Units) gas furnace is a common size for residential heating systems. However, specific technical specifications for a Goodman 60k gas furnace replacement may vary depending on the model and series. Here are some typical technical specifications you might find 🔥 🙌 👇:


  1. BTU Output: A 60k gas furnace produces 60,000 BTUs of heat per hour, which is a measure of its heating capacity.
  2. Efficiency Rating: Goodman furnaces come with different Annual Fuel Utilization Efficiency (AFUE) ratings. Higher AFUE ratings indicate greater energy efficiency. Typical Goodman models may have AFUE ratings ranging from 80% to 96%.
  3. Fuel Type: Goodman gas furnaces use natural gas or propane as their fuel source. You'll need to specify the type of gas when purchasing a replacement.
  4. Dimensions and Size: The physical dimensions of the furnace can vary. It's important to ensure that the replacement furnace fits in the available space in your HVAC system.
  5. Blower Motor Type: Goodman furnaces may come with variable-speed or multi-speed blower motors, which affect airflow and energy efficiency.
  6. Heat Exchanger Material: The heat exchanger is a critical component. Goodman typically uses either stainless steel or aluminized steel heat exchangers.
  7. Ignition System: Goodman furnaces can have either intermittent pilot ignition or hot surface ignition systems.
  8. Warranty: Goodman often provides various levels of warranties, including parts and heat exchanger warranties. Warranty terms can vary based on the specific model and where it's purchased.
  9. Venting Requirements: The venting system for the furnace will depend on the model. Some models are compatible with both single-pipe and two-pipe venting systems.
  10. Control System: Goodman furnaces come with different control systems, which can include basic thermostat compatibility or more advanced control options for zoning and remote monitoring.
  11. Noise Level: The noise level is typically measured in decibels (dB) and can vary between models.
  12. Installation Requirements: Consider whether your replacement furnace requires any specific installation requirements, such as clearances, ductwork modifications, or specific voltage and gas line requirements.


It's essential to consult the specific model's technical documentation and user manual to get precise information about the replacement furnace's specifications. Additionally, consult with a licensed HVAC professional to ensure the replacement is appropriate for your specific heating needs and system requirements.

  • Our Services
  • Our Services: Repairs
39 Whittier Parkway , Severna Park, MD, US

For this repair, Cornett Heating & Cooling found a secondary drain that was clogged. The Solution was to simply blow out the pipe with nitrogen and install a pvc plug to prevent future leaks. If you have clogging issues or are in need of anything that has to do with your heating or cooling, Cornett can help. We are a reputable HVAC company in Severna Park and all of Anne Arundel County and surrounding counties. Our services include: Air conditioning maintenance and repairs; heating maintenance and repairs; new furnace and AC unit installations and more. We also handle commercial or residential jobs. In other words, no job is too small or too big for us. Give us a call today, 410-801-7771

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  • Our Services: Repairs
876 Rudder Way , Annapolis, MD, US
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  • Our Services: Annual Maintenance Program
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493 Bottesford Court , Severna Park, MD, US

Our customers had a clogged drain line, which is no problem for our team at Cornett HVAC. As the best heating and cooling company in Severna Park and surrounding areas, we will give you an honest assesment and provide you the most cost effective solution. We will not try to upsell you. For this job, we cleared the pipe with nitrogen to stop the leak. The system was then topped off with a pound of freon to completely fix the issue. We hope you choose Cornett Heating & Cooling next time you need a service call or an entire new unit. Just give us a call and we will be happy to come out! Thank you for your consideration 🙏.

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  • Our Services: Repairs
8565 Skipjack Place , Pasadena, MD, US
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  • Our Services: Repairs

Customer Testimonials

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Mike & Lisa Etheredge
Zach arrived promptly, quickly diagnosed the issue, and made the repair. He also provided a thorough explanation of the issue and resolution. We bought our HVAC system from Cornett a few years ago and continue to be very happy with the professional service they provide. Have referred multiple family members and friends to them as well.
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Kelly Brown
Danny was prompt and expeditious in servicing our AC unit and getting it back in working order, during one of the hottest days of the summer.
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mindi wachs
Danny was our tech … he was great… informative, professional, on time and so helpful. Cornett got us on the books quickly in the middle of heatwave. Thank you! Highly recommend!
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Michelle Clabby
The two gentleman were actually early for the appointment and very polite and professional. We’ll call them if any other issues arise.
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Alvina Williams
The experience with Cornett Heating & Cooling was very professional and excellent customer service from setting up the request on line and a follow up call from the office, to set up the official appointment for maintenance service for my HVAC System. The Technicians were on time, running ahead of their schedule, and afforded me the coursety with a phone call to see if they could arrive earlier which was excellent for me. Once the Technicians entered my home, they were very professional, consi...Read more