Imagine never running out of hot water again, even if the dishwasher is running and someone is in the shower at the same time. This is the promise of modern tankless water heater technology. At Deljo Heating, Cooling & Plumbing, we provide expert tankless water heater services designed to bring high-efficiency, on-demand comfort to your Chicago home.
Since 1922, Deljo has been at the forefront of home comfort. As a leader in Chicago HVAC and plumbing, we understand how to integrate the latest technology into the Windy City’s unique infrastructure. Whether you are looking to save space in a city condo or slash your energy bills in a Park Ridge estate, our NATE-certified team is ready to help.
Professional Tankless Water Heater Installation
Upgrading to an on-demand system requires more than just swapping out a tank. Because Chicago’s groundwater temperatures can drop significantly during the winter, a tankless water heater installation must be perfectly sized to ensure you have consistent heat even in sub-zero weather.
Our technicians precisely handle the following aspects of tankless water heater installation in Chicago:
• Gas Line Upgrades:
Tankless units require a higher BTU input than traditional tanks to heat water instantly.
• Precision Venting:
We ensure your unit meets all Chicago building codes for safe exhaust and intake.
• Winter-Ready Sizing:
We calculate the “temperature rise” needed for Chicago’s coldest months, so your water is always 120°F, regardless of the season.
By handling the complex permitting and technical requirements, we ensure your transition to “endless hot water” is seamless, compliant, and long-lasting.
Essential Tankless Water Heater Maintenance
To protect your investment and maintain your manufacturer’s warranty, regular tankless water heater maintenance is non-negotiable. Chicago’s water is relatively “hard,” meaning mineral scale can accumulate on the sensitive heating elements of a tankless unit faster than a traditional tank.
Our technicians expertly handle all aspects of Chicago tankless water heater maintenance, including:
• System Descaling:
We perform a professional flush using specialized solutions to remove calcium and lime buildup from the heat exchanger.
• Sensor & Filter Cleaning:
We ensure the flow sensors and air intake filters are clear, preventing sudden bursts of cold water.
• Diagnostic Check:
We review the unit’s internal computer for any minor error codes before they lead to a system lockout.
Enrolling in our Goldstar Maintenance Program is the best way to ensure your unit receives this vital care annually, preventing the need for mid-winter tankless water heater repair.
Expert Tankless Water Heater Repair
Because these units rely on sophisticated circuit boards and sensors, they require a higher level of technical expertise than a standard tank. If your unit is displaying an error code or failing to ignite, call us anytime 24/7 for live phone intake and priority technician scheduling. We specialize in tankless water heater repair in Chicago for common issues such as:
• Ignition Failure:
Often caused by gas pressure issues, dirty igniters, or a lack of maintenance.
• Heat Exchanger
“Flame Out”: Usually a result of improper venting or high mineral buildup.
• System Overload:
If your unit wasn’t sized correctly by a previous installer, we can help recalibrate or upgrade your system for better performance.
Our goal is to get your hot water back on the same day. For true emergencies, we also offer emergency plumbing support across the entire Chicagoland area.
The Tankless Advantage: Why Upgrade?
While Deljo offers a full range of Gas and Electric water heater options, many Chicagoans are moving toward tankless systems for their unique benefits. Choosing a tankless water heater offers three primary advantages:
1. Endless Hot Water:
Unlike traditional tanks that run out after a few long showers, a tankless unit heats water on demand. You can run multiple fixtures simultaneously without ever losing heat.
2. Massive Space Savings:
These units are about the size of a carry-on suitcase and mount directly to the wall. This frees up valuable floor space in tight Chicago basements or utility closets.
3. Maximum Efficiency:
Traditional tanks waste energy heating water you aren’t using. Tankless units only activate when a tap is turned on, significantly reducing your monthly energy costs.
If your home’s layout or venting doesn’t support a tankless upgrade, our experts will help you find the most efficient traditional alternative to keep your home comfortable.
Why Choose Deljo for Tankless Water Heater Services?
At Deljo Heating, Cooling & Plumbing, we treat your home like our own. Every tankless water heater installation is clean, quiet, and perfectly integrated into your existing plumbing. Other reasons to choose Deljo for tankless water heater services include:
• NATE-Certified Technicians:
We bring the same rigor to our plumbing as we do to our award-winning HVAC service.
• 100-Year Legacy:
We’ve been serving Chicago since 1922, and we stand behind every job we do.
• Flexible Financing:
We help make premium technology affordable for every household with easy financing options.
When you choose Deljo, you are partnering with a century-old Chicago institution that prioritizes your family’s long-term comfort and safety above all else.
Chicago Tankless Water Heater FAQ
Do tankless water heaters work in Chicago winters?
Yes, tankless water heaters work in Chicago winters if they are sized correctly. Because our lake water gets very cold, you need a unit with a high BTU rating to ensure it can raise the temperature sufficiently even in January.
How much space do I save with a tankless unit?
Most tankless units are about the size of a carry-on suitcase, freeing up significant floor space in your basement or utility closet compared to a 50-gallon tank.
How long do they last?
With proper tankless water heater maintenance, these units can last 20 years or more—nearly double the lifespan of a traditional tank.
Schedule Your Tankless Water Heater Service Today
Ready to experience the convenience of endless hot water and the savings of a high-efficiency system? Contact the experts who have been leading the way in Chicago home comfort for over a century.
For expert tankless water heater installation, maintenance, and repair, call Deljo Heating, Cooling & Plumbing at or contact us online today!
