It’s 3:41 pm & We’re Always Open.

Schedule Your SAME/NEXT DAY Appointment Now!

Book Service Online
  • Great Choice! Eco Temp HVAC Home Services Technicians Are The Highest-Rated Cooling & Heating Install Teams in the area!


    In order to customize your new system, we’ll connect you with your very own Comfort Consultant and set up a FREE in-home estimate to discuss:


    • Our Industry-Leading Up To 10-Year Warranty
    • Current Discounts & Rebates
    • Financing Options
    • Guaranteed Right-Sized Equipment for Your Home
    • Smart-Home Integration & Options

🔥 Tankless Water Heaters: Endless Hot Water for Chicago Homes & Businesses

Tired of running out of hot water halfway through your shower?
Upgrade to a tankless water heater — the smarter, more efficient way to heat water on demand.

At Eco Temp HVAC, we specialize in tankless water heater installation, replacement, and repair across the Chicago area.
As a certified Navien Service Specialist, our technicians are factory-trained to install and service the industry’s most advanced condensing tankless systems, delivering unlimited hot water while reducing energy waste and operating costs.

Call (224) 253-8131 or book online, and one of our expert technicians will help you decide which system is best for your home.


💧 What Is a Tankless Water Heater?

Unlike traditional water heaters that store and reheat a limited tank of water, tankless systems heat water instantly as it flows through the unit.
This “on-demand” process eliminates standby heat loss, allowing you to enjoy endless hot water while saving space and money.

💡 Learn more about how these systems work in our guide:
👉 Unlocking Endless Hot Water — The Benefits of Tankless Water Heaters

⚙️ Tankless Water Heater Installation & Replacement in Chicago

Eco Temp HVAC provides professional tankless water heater installation for both homes and commercial properties.
Whether you’re upgrading from a traditional tank or replacing an outdated unit, we’ll design a system that fits your household size, water demand, and budget.

Our Installation Process:

  1. In-home consultation and system sizing

  2. Gas line and venting evaluation

  3. Installation of high-efficiency tankless unit

  4. Setup of smart temperature controls

  5. Full system testing and performance verification

Every installation includes manufacturer-approved venting and water line materials, ensuring safety and long-term reliability.

🧠 Discover why Navien condensing tankless water heaters are the preferred choice for Chicago homeowners in our detailed article:
👉 Navien Condensing Tankless Water Heaters & Combi Boilers in Chicago, IL


🌿 Why Choose a Tankless Water Heater?

Upgrading to a tankless system offers numerous performance and environmental benefits — especially for energy-conscious Chicago households.

Key Advantages:

  • ♾️ Endless hot water: Never run out during back-to-back showers or laundry cycles.

  • 💡 Lower energy bills: Up to 30% more efficient than traditional water heaters.

  • 🏠 Space-saving design: Compact wall-mounted units free up floor space.

  • 🌎 Eco-friendly performance: Reduced greenhouse gas emissions and waste.

  • 🛠️ Longer lifespan: Average life expectancy of 20+ years with proper maintenance.

🌱 Read more about how these systems support sustainability in our blog:
👉 The Benefits of Tankless Water Heaters — Eco-Friendly Solutions for Your Home


🔧 Tankless Water Heater Maintenance & Repair

Even the best systems require routine care to maintain performance and efficiency.
Our certified technicians provide:

  • Annual descaling and system flushing to prevent mineral buildup

  • Filter and valve inspections for proper flow

  • Performance testing to maintain manufacturer warranty

  • Navien factory-authorized repairs using genuine parts

Regular maintenance ensures your tankless water heater delivers consistent temperature and maximum efficiency year after year.


🏆 Why Homeowners Trust Eco Temp HVAC

Eco Temp HVAC is Chicago’s go-to expert for tankless water heating systems.
Our technicians are factory-trained, licensed, and fully insured — providing homeowners peace of mind with every installation.

Our Certifications & Credentials:

  • Navien Service Specialist (NSS) Certified

  • ✅ Licensed, bonded, and insured in Illinois

  • ✅ Decades of combined HVAC experience

  • Local Chicago technicians familiar with city codes and venting requirements

When you hire Eco Temp HVAC, you’re partnering with a company committed to craftsmanship, transparency, and long-term performance.


💰 Financing & Rebates

We make upgrading to a tankless system easier than ever.
With flexible HVAC financing options and available ComEd energy rebates, you can enjoy high-efficiency comfort with manageable payments.


📞 Schedule Your Tankless Water Heater Installation Today

Ready to enjoy endless hot water and lower energy bills?
Contact Eco Temp HVAC today to schedule your tankless water heater consultation.

📲 Call (224) 253-8131 or
💻 Book Online

Experience the comfort, reliability, and energy savings of a professionally installed Navien tankless water heater in Chicago.


🔗 Related Resources

❓ Frequently Asked Questions About Tankless Water Heaters

Eco Temp HVAC offers tankless water heater services in the following cities in Illinois: Alsip | Arlington Heights | Antioch | Bellwood | Berwyn | Bridgeview | Broadview | Brookfield | Buffalo Grove | Burbank | Burr Ridge | Chicago | Des Plaines | Elk Grove Village | Evanston | Franklin Park | Glencoe | Glenview | Hanover Park | Hickory Hills | Hoffman Estates | La Grange | Lemont | Lincolnwood | Melrose Park | Mokena | Mount Prospect | Northbrook | Oak Lawn | Oak Park | Orland Park | Palatine | Palos Heights | Palos Hills | Palos Park | Prospect Heights | Rolling Meadows | Schaumburg | Skokie | South Chicago | Tinley Park | Westchester | Wheeling | Wilmette | Winnetka | Addison | Aurora | Bartlett | Bensenville | Bloomingdale | Carol Stream | Darien | Downers Grove | Elmhurst | Oak Brook | Roselle | St Charles | Villa Park | Glen Ellyn | Glendale Heights | Hinsdale | Lisle | Lombard | Naperville (Illinois) | Warrenville | West Chicago | Westmont | Wheaton | Willowbrook | Winfield | Wood Dale | Woodridge | Barrington | Deerfield | Fort Sheridan | Fox Lake | Green Oaks | Gurnee | Highland Park (Illinois) | Ingleside | Island Lake | Lake Bluff | Lake Forest | Lake Zurich | North Chicago | Round Lake | Vernon Hills | Wauconda | Waukegan | Bolingbrook | Homer Glen | Joliet | Lockport | New Lenox | Plainfield | Romeoville | Burlington | Carpentersville | Dundee | Elburn | Elgin | Geneva | KanevillePingree Grove | Saint Charles | Streamwood | Sugar Grove | Crystal Lake | Fox River Grove | Huntley | Lake In The Hills | Mchenry (Illinois) | Woodstock | DeKalb | Genoa | Sycamore | Cortland | Kirkland | Afton Center | Esmond

Claim Your Coupon!

Save $40 On Any Repair Service

Call (224) 253-8131 or fill out the online form today.

Get Started Now
Get Started Now

Our Service Process

How It Works

If you're looking for a tech-savvy company that will keep you in the loop, Eco Temp HVAC is the perfect choice. We use notification reminders to make sure you know when your appointment is, and we even provide a picture of your tech so you know who to expect. We make HVAC Easy, Breezy, Done!

Schedule Your Service

Get Updates every Step of the way

Get Quality Service At Your Door

Enjoy Long Lasting Comfort

Book Online

Customer Testimonials

You're why we do what we do!

We're proud to say that our reputation for quality work and friendly service has allowed us to grow from a small, family operation into one of the most trusted Chicago HVAC companies. And you're the reason why we do it!

We Have Your Back

Our Promises To You!

100% Money Back Guarantee

You will get our trained pre-screened contractors and a two-year money-back guarantee on all services. Unlike other organizations with lengthy hidden terms and conditions, ours is straightforward, with no small fonts for you to read.

Background Checks!

You will get HVAC contractors who have been thoroughly vetted and drug tested for your safety and that of your family, home, and employees. Unlike other companies, we demand random testing and checks on everyone who enters your home, company, or property.

BBB A+ Rating

You will receive service from Eco Temp HVAC, a local company that has an A+ rating from the Better Business Bureau and has passed the most stringent quality tests and regulations that only around 2% of all HVAC providers can meet. Quality and safety matter to us because it matters to you!

Eco Temp HVAC's mascot Breezy the Polar Bear dressed in a navy blue shirt and khaki shorts while holding a HVAC technician gauge.

24/7 Availability Always

We Put Your Comfort First!

Call the heating and cooling pros at Eco Temp HVAC today for all your residential and commercial heating and cooling needs. From smart thermostats to complex HVAC systems design, we do it all!
Call Us For Free Quote!

(224) 253-8131

OR
Request Service

HVAC Services Near You

Proudly Serving Chicago and surrounding suburbs

Eco Temp HVAC is a beacon of excellence for furnace repair and comprehensive HVAC services with office locations in Chicago, Lemont, Palatine, Kirkland, St Charles, Downers Grove, Bartlett, and the Northwest Suburbs. Our seasoned technicians are adept at servicing various heating systems, encompassing furnaces, boilers, heat pumps, and beyond. Beyond just repairs, we’re proud to offer installation, maintenance, and replacement services, guaranteeing your HVAC systems deliver peak year-round performance. Our unwavering dedication to superior quality and unparalleled customer care solidifies our status as a trusted HVAC service pillar in the community.

Schedule Service Now