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Understanding Ductless Heating Systems for Chicago Homes

When Chicago’s harsh winters arrive with temperatures plummeting below freezing for weeks at a time, having an efficient and reliable heating system becomes essential for comfort and safety. Ductless heating systems, also known as mini-split systems, have emerged as an increasingly popular solution for homeowners throughout Chicago, Bensenville, Addison, and Elmhurst who need flexible, energy-efficient heating options. These innovative systems operate without the extensive ductwork required by traditional forced-air furnaces, making them ideal for older Chicago homes, room additions, and spaces where installing ducts would be impractical or prohibitively expensive.

The technology behind ductless heating involves an outdoor compressor unit connected to one or more indoor air handling units through small conduit lines containing refrigerant tubing, power cables, and condensate drains. This configuration allows for zone-based heating control, meaning you can set different temperatures in different rooms or areas of your home, eliminating the waste associated with heating unused spaces. At Oasis Plumbing, Heating & Cooling, we’ve installed hundreds of these systems throughout the Northern Suburbs over our more than 20 years serving the community, and we’ve witnessed firsthand how they transform comfort levels while reducing energy consumption by up to 30% compared to traditional heating methods.

Benefits of Ductless Heating in Chicago’s Climate

Chicago’s extreme temperature variations, from sub-zero winters to humid summers, demand versatile climate control solutions that can adapt to changing conditions efficiently. Ductless heating systems excel in this environment because they utilize inverter-driven compressors that adjust their speed based on heating demands rather than cycling on and off like conventional systems. This variable-speed operation maintains more consistent temperatures, reduces energy consumption, and extends equipment lifespan by minimizing wear from frequent starts and stops. Since 1997, Oasis Plumbing, Heating & Cooling has specialized in matching the right ductless system capacity and configuration to each home’s unique requirements, ensuring optimal performance even during polar vortex events.

The absence of ductwork eliminates several common problems plaguing Chicago homeowners, including heat loss through poorly insulated ducts in unconditioned spaces like attics or crawlspaces, which can account for up to 40% of heating energy waste. Additionally, ductless systems provide superior indoor air quality by avoiding the dust, allergens, and contaminants that accumulate in ductwork over time. Each indoor unit contains multi-stage filtration that captures particles, odors, and airborne irritants, creating a healthier living environment particularly beneficial for family members with allergies or respiratory sensitivities.

Installation Process and Considerations

Installing a ductless heating system requires careful planning and professional expertise to ensure optimal performance and efficiency. The process begins with a comprehensive assessment of your home’s heating needs, considering factors such as square footage, insulation levels, window placement, and existing heating infrastructure. Our technicians evaluate each room’s heat loss calculations, accounting for Chicago’s design temperature of negative five degrees Fahrenheit, to determine the appropriate system capacity and indoor unit placement for maximum comfort and efficiency.

The physical installation typically takes one to two days depending on the number of indoor units and complexity of the configuration. We mount the outdoor compressor unit on a level surface, often on concrete blocks or wall brackets, positioning it away from snow accumulation areas while maintaining proper clearance for airflow and service access. Indoor units are strategically mounted on walls or ceilings, with careful attention to furniture placement, traffic patterns, and aesthetic considerations. The refrigerant lines connecting indoor and outdoor units require only a three-inch hole through exterior walls, minimizing structural impact while maintaining your home’s weather barrier integrity.

Cost Analysis and Energy Savings

While the initial investment for ductless heating systems typically ranges from $3,000 to $8,000 per zone depending on capacity and features, the long-term savings often justify the upfront expense. Chicago residents can take advantage of utility rebates and federal tax credits that significantly reduce installation costs, with some programs offering up to $2,000 in combined incentives for qualifying high-efficiency models. Our team assists customers in navigating these incentive programs, ensuring they maximize available savings opportunities while selecting equipment that meets program requirements.

Operating costs for ductless systems in Chicago average 25-50% less than electric baseboard heating and 20-30% less than traditional ducted systems, translating to annual savings of $500 to $1,500 for typical households. These savings result from several factors including the elimination of duct losses, precise zone control preventing overheating, and advanced heat pump technology that moves heat rather than generating it through combustion or resistance. Modern ductless systems maintain heating efficiency even at temperatures as low as negative 13 degrees Fahrenheit, though supplemental heating may be necessary during extreme cold snaps.

Maintenance Requirements and System Longevity

Proper maintenance ensures your ductless heating system operates efficiently throughout Chicago’s demanding heating season while extending equipment lifespan beyond the typical 15-20 year expectancy. Regular maintenance tasks include:

  • Monthly filter cleaning: Remove and wash reusable filters to maintain airflow and efficiency
  • Seasonal outdoor unit inspection: Clear debris, snow, and ice accumulation from around the unit
  • Annual professional service: Comprehensive system check including refrigerant levels, electrical connections, and component testing
  • Condensate line maintenance: Ensure proper drainage to prevent water damage and system shutdowns
  • Coil cleaning: Remove dust and debris from indoor and outdoor coils to maintain heat transfer efficiency

Our highly-trained technicians provide customized maintenance programs tailored to your specific system and usage patterns, helping prevent unexpected breakdowns during critical heating periods. We stock common replacement parts for major ductless brands, ensuring quick repairs when issues arise, and our responsive support staff coordinates service appointments to minimize disruption to your daily routine.

Choosing the Right System for Your Chicago Home

Selecting appropriate ductless heating equipment involves evaluating multiple factors beyond basic heating capacity. Consider noise levels, particularly for bedroom installations where whisper-quiet operation enhances sleep quality. Modern units operate at sound levels below 25 decibels, quieter than a typical library environment. Aesthetic preferences matter too, with options ranging from traditional wall-mounted units to concealed ceiling cassettes and floor-mounted consoles that complement various interior design styles.

Advanced features like Wi-Fi connectivity enable remote temperature adjustments through smartphone apps, allowing you to warm your home before arrival while maintaining energy-saving setbacks during absence. Some systems incorporate occupancy sensors that automatically adjust operation based on room usage patterns, further optimizing energy consumption without sacrificing comfort. At Oasis Plumbing, Heating & Cooling, we guide customers through available options, helping balance desired features with budget constraints to achieve the best value for their investment while ensuring reliable heating throughout Chicago’s challenging winter months.

Ductless Heating in Chicago, IL

Ductless Heating in Chicago, IL

Ductless Heating ∴ Chicago, IL

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Featured Five-Star
Customer Reviews

I have been using Oasis since 2019. They are reliable, efficient, and their prices are reasonable. The customer service is amazing. Every tech I’ve had come out is knowledgeable, friendly, and professional. The owner, Mike, is hands on and works with you every step of the way. Highly recommend Oasis.
Services include: furnace and AC replacement; annual maintenance.

Nicole U.

Oasis is great! My furnace is almost 30 years old and for a reasonable price they were able to do the repairs. First Danny came to evaluate. He showed me what was wrong. They had to order the necessary parts to fix it. Today Hani and Fernando came to do the repair. They were efficient and courteous. I will definitely use Oasis in the future.

Emily H.

Oasis has always been great to work with and their staff are quick and efficient if issues arise. When our air conditioning broke down during the heat of the summer, they provided a quick replacement at a competitive price. Their staff are always extremely kind, respectful, and knowledgeable.

Sam C.

I had a great experience with Oasis. Our furnace had issues on Thursday night and Oasis came at 7am the next morning, and we found out we needed a new one. They provided all the necessary information to our condo building so we could get an emergency replacement on Saturday morning. Within 36 hours we had a brand new furnace and the installation team did a great job communicating on their work and how to use the furnace. The owner, Mike, and his team are great and I really appreciated the attention they gave to this matter. I would highly recommend and will only go to them in the future.

Shane H.

I called Oasis this morning because my furnace was not working. Within 20 minutes their technician, Danny, arrived. Danny was able to assess the situation, provide an immediate fix, and even commit to returning Monday morning to provide additional services needed. Danny was friendly, informative, professional and FAST! I am thankful I called Oasis for my immediate heating needs and that Danny was the technician who arrived. Top notch service! Highly recommend.

Megan R.

Danny and the folks at Oasis got us a great deal on a new furnace and AC. The install took about 4 hours, and they were also super responsive throughout the process. It was about as good of an experience I’ve had with an HVAC company. I’d highly recommend!

Brian C.

The folks with Oasis showed up right on time and replaced my entire furnace and condenser in about 4.5 hours. I had just redone my laundry room where the furnace is and they took great care not to damage anything. Overall very happy with the service and very happy with how respectful the installers were.

Josh D.

Oasis was incredibly responsive and efficient! My call to them on a Friday night during a cold spell was returned within 10 minutes and he scheduled a tech to come to my home at 7 the following morning. At 7 the tech was there, examined my furnace confirming that a new motor was necessary. He searched for the part, sent a quote and returned with the motor by noon the same day to install it. You can’t beat that!!! I will be using Oasis for all my future furnace and A/C needs.

Gayle V.
Called and was able to get a same day appointment. The technician, Fernando, was fantastic. He found the issue quickly and had my furnace fixed faster than I expected. He was courteous, knowledgeable, and explained exactly what the issue was and what he did to fix it. Will definitely be calling them
Again if i need hvac services.
Fernando was fantastic.
I had some repairs and maintenance at my property, Fernando was the technician and was very detail oriented and kind! Was able to get all the work done and is very knowledgeable
Honest, professional, and down to earth. They were able to avert an emergency furnace issue for us.
Per Chris ---

They DON'T service my area......
Chicago Englewood area....ummm!!
Chris and Mike just finished replacing my pressurized toilet system. Chris helped me identify the problem in advance and saved me an extra service call. They showed up on time for our appointment and resolved my issues promptly.
Joseph did a fantastic job, he was timely and explained everything he did for the furnace. Always great service from Oasis. Highly recommend.
We had an incredibly smooth time with Oasis. Their turnaround time for both diagnostics/inspection and installation of our replacement furnace was very fast. 10/10 would recommend their services. All three individuals that came over throughout the entire process deserve high praise for their patience, knowledge, and willingness to answer all of our questions. They also provided helpful tips and things to think about for future servicing.
Mark, was out today at my residence for service. He was very knowledgeable and explained clearly what was needed. Very pleased with the service provided by Oasis.
Response from the owner:Thank you, Ellen! We appreciate your kind words about Mark and are glad to hear you were pleased with the service from Oasis.
Joseph was absolutely wonderful and a pleasure to work with. He is so knowledgeable and very kind. Can’t recommend him enough!
Literally had a guy here in 20 minutes. Tech wasted no time diagnosing the problem – bad limit switch for heat. Was not charged emergency service rate due to a cancellation in the area. Part is ordered and on our way back to comfort!
Joseph, the technician, came over to do a maintenance checkup for our 1-year old furnace and to the replace the damper on our Aprilaire humidifier. Joseph replaced the humidifier damper and showed me how to do it myself. After Joseph inspected my furnace he pointed out a potential problem with the compressor. He said that the compressor was overheating and needed to be watched. I live in a condo and will recommend Oasis to my neighbors
Oasis has provided service for my home for 4.5 years and has always been wonderful. Most recently we had Joseph, who was professional, knowledgeable, and not pushy.
Quick to come out and give me an estimate for several repairs
My experience with Oasis Plumbing, Heating & Cooling was excellent from beginning to end. As soon as I called, Natalia picked up and immediately made things easy she was friendly, responsive, and helped me get an appointment without any hassle. The technician arrived exactly when expected, went over everything in clear detail, and completed the job with care and professionalism. Oasis proved to be a trustworthy and efficient company, and I’d happily call them again for any future needs.
I had an excellent experience with Oasis Plumbing, Heating & Cooling. From the moment I called, Natalia in customer service was friendly, quick to respond, and very clear about pricing and scheduling. The technician arrived on time, explained everything in a way that was easy to understand, and worked efficiently without cutting corners.
Choosing Oasis Heating for my furnace and HVAC replacement was one of the best decisions I’ve made as a homeowner in Chicago. From start to finish, the experience was outstanding—with professionalism and genuine care that truly set them apart.

The installation team was not only incredibly skilled but also took the time to ensure every detail was perfect. Their workmanship was remarkable and impeccable, from the initial removal to the seamless setup of my new system. I never once felt rushed—quite the opposite! They patiently walked me through every step and explained exactly what to expect, which made the whole process surprisingly stress-free.

The best part? Their quote was easily the most competitive and reasonable among all the options I considered. Anel, who headed up my project, went above and beyond to help me—listening carefully to my needs and recommending a solution that was truly better than anything else I found. He made sure I understood the benefits of the new system and didn’t hesitate to address any questions I had.

If you’re in Chicago and need HVAC work, I can’t recommend Oasis Heating highly enough. Their team, especially Anel, is professional, honest, and committed to making sure you get the best possible service and solution. Five stars all around!
Been using Oasis for twice a month routine maintenance on my ac/furnace unit and they always are prompt, friendly and have it running great. Prices are reasonable.
Fantastic service! The technician was very nice and educational and informative. He showed up 10 minutes early to the appointment as well and was efficient with my time. Would absolutely recommend to anyone needing any HVAC services.
Oasis installed our furnace a few years back and recently we've been experiencing some issues with a faulty flame sensor. Oasis listened to our concerns, diagnosed the issue, and implemented a fix professionally and economically. They made things right. We received amazing customer service from Natalia and Mike (the owner?) and the on-site technicians Damir and Amir were very thorough and patient describing the issue and potential causes as well as quickly implementing a fix. Oasis does customer service as well as any organization I've dealt with and I can highly recommend them for anyone looking for heating/cooling expertise. Thanks Oasis!
Fernando to the rescue. Oasis is a neighbor of mine and I had heard they were amazing. My furnace wasn’t working so I sent a request after hours and someone got back to me in minutes. Fernando was there at 7am and fixed everything. They are affordable and friendly. I’m was very appreciative of them coming so quickly as the furnace was for my business. I also signed up for the yearly maintenance and they are coming on Monday to do a cleaning. Thanks again.
Great Prompt service and professional team
Joseph was my technician. He was very thorough and conscientious to make sure everything was properly installed. I was very impressed by his professional manner .
Response from the owner:Thank you, Donald, for your kind words! We're glad to hear that Joseph impressed you with his professionalism and thoroughness. Your feedback means a lot to us!
Fernando and Michael were absolutely incredible. They fixed my furnace in just a few hours, walked me through the new features, and even reminded me to buy new filters to fit. I can't recommend them enough.
Response from the owner:Thank you, Madeline! We're so glad to hear that Fernando and Michael provided you with excellent service and support. Your recommendation means a lot to us!
Technician Joseph did a great job in assessing issues with a 25 year old furnace, A/C, & water heater. He was very detailed and thorough in explaining the different options I had with regard to repairing vs. replacing each of them separately or replacing all of them in one shot, while giving me the pros & cons of the different options. He made sure I understood what he was telling me and not rushing explanations.
Response from the owner:Thank you, Michael, for your kind words about Joseph's thorough assessment and his clear explanations. We're glad to hear you felt well-informed about your options!
Joseph the technician was a great help
On my HVAC service. He was very thorough and explained everything professionally. Thank you!
Response from the owner:Thank you, Parris! We appreciate your kind words about Joseph and are glad to hear he provided thorough and professional service. Your feedback means a lot to us!
Oasis Heating & Cooling is always so fantastic, and their technician Joseph was a delight. We have used them for emergency repairs as well as seasonal maintenance. Prices are always reasonable and technicians are friendly and knowledgeable. Highly recommend!
Response from the owner:Thank you, Gabrielle! We're glad to hear you had a great experience with Joseph and appreciate your kind words about our team and services. Your recommendation means a lot to us!
Chris was excellent, showed up on time, explained everything thoroughly, provided estimates as they progressed, and cleaned up afterwards. Would definitely use again!
Response from the owner:Thank you, Anand! We're glad to hear that Chris provided excellent service and kept you informed throughout the process. Your feedback means a lot to us, and we look forward to assisting you again in the future!
Joseph was great, all the techs have always been helpful and informative. Happy with the service they provide.
Response from the owner:Thank you, Danny! We're glad to hear that Joseph and the team have been helpful and informative. Your satisfaction means a lot to us!
They were quick to come out and diagnosis the issue. They arrived on time and Mike explained what was happening and what was being done. Highly recommend!
Response from the owner:Thank you, Tim! We're glad to hear you had a positive experience with our team and that Mike was able to provide clear explanations. Your recommendation means a lot to us!
Oasis was perfect!!!
They were here quickly
They immediately solved my problem. And made some suggestions regarding repairing or replacing
Response from the owner:Thank you, Mark! We're glad to hear that your tech was able to quickly solve your problem and provide helpful suggestions. We appreciate your feedback!
Great job as always! Thanks - Mary and Kevin Galligan
Response from the owner:Thank you, Kevin! We appreciate your kind words and support, and it's great to hear that you and Mary are satisfied with our service.
Oasis was prompt and helpful. They scheduled my appointment quickly and confirmed in email and text. The rep was friendly and helpful and walked me through options and recommendations, the pricing was reasonable as well.
Response from the owner:Thank you, Mike, for your kind words! We're glad to hear you found our service prompt and helpful, and that our team was able to assist you effectively. Your feedback is greatly appreciated!
Furnace maintenance revealed some issues and I decided new vs repair just made more sense based on age. Prices were in line with national averages for the model and installation fees. Oasis is always friendly, responsive and professional!
Response from the owner:Thank you, Patrice, for your kind words! We're glad to hear you found our pricing fair and our team friendly and professional. Your satisfaction is important to us!
Joseph was great. Very nice and informative.
Response from the owner:Thank you, Jacqueline, for your kind words about Joseph; we're glad you had a positive experience!
Oasis has done preventive maintenance on my heater the last two years, and it’s been a very positive experience. Scheduling is easy, they are responsive, and have actual humans involved in the process! (I’m writing this on the heels of dealing with Xfinity, which was a nightmare). The technicians were right on time both times, nice people, and they do good work. Also, they didn’t try to sell me anything I didn’t need, which builds trust. I will use them again next year and in between if anything else comes up that’s in their wheelhouse.
Response from the owner:Thank you, Patty, for your wonderful feedback! We're glad to hear that your experiences with our team have been positive and that our technicians were timely and trustworthy. We appreciate your trust in us and look forward to assisting you again in the future!
Our technician Chris was prepared and easy to work with, as we had two jobs for him. After an estimate, he worked us into his schedule for the next day. He was on time each day and very efficient in how he completed his work. These were both plumbing repairs.

Due to the good work by Chris, when heating season came we had this firm check our heating season. Naim did the initial work and gave us good advice. But several weeks later a leaky humidifier shut down our system. Joseph came out at no charge to get the system working again. There was no charge even though this company had not installed the unit, nor did they cause the problem. Would definitely recommend them to others.
Response from the owner:Thank you, Rick, for your kind words about Chris and his efficient work on your plumbing repairs; we appreciate your trust in us and are glad we could meet your needs! We are here for all of your HVAC and Plumbing needs!
Joseph was great - quickly checked our furnace!
Response from the owner:Thank you, Abigail! We're glad to hear that Joseph provided quick and efficient service for your furnace. Your feedback is greatly appreciated!
Joseph did a great job, heat is working now!
Response from the owner:Thank you, Marcus! We're glad to hear Joseph was able to help and that your heat is working now.
Mark from Oasis was very quick and efficient at checking our furnace and getting the filter replaced. I would use Oasis again the future and would recommend to others.
Response from the owner:Thank you, Ashley! We're glad to hear that Mark provided efficient service with your furnace. We appreciate your recommendation and look forward to serving you again in the future.
Response from the owner:Thank you, Jarrett, for your 5-star review!
Joseph was great! Professional, on time and fast. Provided photos of the work. Would recommend.
Response from the owner:Thank you, James! We're glad to hear that Joseph made a positive impression with his professionalism and efficiency. Your recommendation means a lot to us!
Joseph was great! We have had great experiences with oasis
Response from the owner:Thank you, Natalie! We're glad to hear you had a great experience with Joseph and the team at Oasis. Your support means a lot to us!
Joseph was great. Fast, professional and helpful in explaining furnace maintenance, upkeep and longevity.
Response from the owner:Thank you, Lawrence, for your kind words about Joseph's service! We're glad to hear he was fast, professional, and helpful in explaining everything you needed. Your feedback is appreciated!
Their technicians are experienced, courteous, and highly skilled at diagnosing and resolving any heating or cooling issue quickly and efficiently. Whether it’s a new installation, seasonal maintenance, or an urgent repair, they always deliver top-quality work and ensure your system runs smoothly. The team explains every step clearly, offers fair pricing, and never pushes unnecessary services. Their punctuality and attention to detail make the entire experience stress-free and trustworthy — exactly what you want when dealing with your home’s comfort systems.

What truly sets Oasis Heating & Cooling apart is their dedication to customer satisfaction and long-term reliability. The staff are friendly, honest, and genuinely care about providing the best solutions for each home or business. They take pride in their workmanship, and it shows in the consistent comfort and energy efficiency their systems deliver. You can tell they value relationships, not just transactions, treating every job as an opportunity to build trust. For dependable service, expert craftsmanship, and peace of mind year-round, Oasis Heating & Cooling is a company you can confidently count on.
Response from the owner:Thank you, Carol, for your wonderful review! We truly appreciate your recognition of our team's dedication and commitment to providing top-quality service. It's great to hear that you value the relationships we build and the care we put into every job. Your continued support through the years means a lot to us!
Very professional, fast and reliable.
Response from the owner:Thank you, Hassan, for your kind words! We appreciate your recognition of our professionalism and efficiency.
I had a great experience scheduling seasonal maintenance on heating/air units in our building. The scheduler was incredibly helpful in negotiating a date/time that worked best. The technician arrived on schedule and performed services in a very timely way. Will definitely connect with Oasis for future service!!
Response from the owner:Thank you, James, for your wonderful feedback! We're glad to hear that our scheduler was helpful and that the technician met your expectations. We look forward to assisting you with future services at Oasis!
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