Weil-McLain Combi Boiler Installation Chicago — D's Air & Heating, Inc. Chicago
Weil-McLain Combi Boilers — Chicago
Weil-McLain Combi Boiler Installation Chicago
D's Air & Heating, Inc. installs the Weil-McLain ECO Tec Series 3 Combi in Chicago — space heating and domestic hot water from a single high-efficiency unit. Free in-home estimates.
Weil-McLain Combi Boiler Installation in Chicago
A combination (combi) boiler provides both space heating and domestic hot water from a single unit — eliminating the need for a separate water heater. The Weil-McLain ECO Tec Series 3 Combi is a high-efficiency condensing combi boiler that delivers both functions with up to 95% AFUE efficiency.
Combi boilers are ideal for Chicago homes and apartments where space is limited — a single compact unit replaces both the boiler and the water heater. They are particularly well-suited for gut-rehab projects, condo conversions, and smaller homes where a dedicated water heater takes up valuable mechanical room space.
D's Air & Heating, Inc. installs Weil-McLain combi boilers throughout Chicago and the southwest suburbs. Every installation includes a free in-home assessment, City of Chicago mechanical permit, inspection coordination, and Weil-McLain warranty registration.
Call (773) 940-0965 or book online to schedule your free in-home estimate. D's Air & Heating — Chicago's Weil-McLain specialists since 2009.
Is a Combi Boiler Right for Your Chicago Home?
- You want to eliminate a separate water heater
- Mechanical room space is limited
- You're doing a gut rehab or condo conversion
- Your water heater and boiler are both aging
- You want a single high-efficiency unit for both heating and hot water
- You want to eliminate chimney requirements
- You have a smaller home or apartment
- You want to reduce the number of appliances to maintain
Benefits of Weil-McLain Combi Boiler Installation
Space Savings
One compact unit replaces both your boiler and water heater — freeing up valuable mechanical room space.
High Efficiency
The ECO Tec Series 3 Combi reaches up to 95% AFUE for space heating and high efficiency for domestic hot water.
No Chimney Required
PVC direct venting eliminates chimney requirements — ideal for Chicago homes with deteriorating chimneys.
Simplified Maintenance
One unit to maintain instead of two — simpler annual tune-ups and fewer potential failure points.
Licensed & Permitted
IL License #2183457. City of Chicago mechanical permits on every installation. Inspections coordinated and passed.
Financing Available
Financing on approved credit for qualified Weil-McLain combi boiler installations.
Weil-McLain Combi Boiler Installation Process
Free In-Home Assessment
We assess your home's heating load, hot water demand, and venting options to confirm a combi boiler is the right solution.
Model Selection
We recommend the right ECO Tec Combi model based on your home's BTU and hot water requirements.
Permit Pull
We pull the City of Chicago mechanical permit before any work begins.
Removal of Existing Equipment
We safely disconnect and remove the existing boiler and water heater and dispose of them properly.
Combi Boiler Installation
We install the new Weil-McLain combi boiler, PVC venting, gas line, piping, domestic hot water connections, and controls.
Startup & Testing
We start the unit, verify space heating and domestic hot water are functioning correctly, and confirm all safety controls are operational.
Warranty Registration
We register your Weil-McLain warranty at installation.
Inspection
We coordinate and pass the City of Chicago mechanical inspection.
Weil-McLain Combi Boiler Installation — Scope of Work
- Free in-home heating and hot water load assessment
- Removal and disposal of existing boiler and water heater
- New Weil-McLain ECO Tec Combi installation
- PVC venting installation
- Gas line connection and pressure test
- Domestic hot water piping connections
- System piping connections and pressure test
- Condensate drain line installation
- Thermostat and zone control wiring
- System fill, bleed, and pressure setting
- City of Chicago mechanical permit and inspection
- Weil-McLain warranty registration
- D's Air 2-Year Workmanship Warranty
Financing Available
D's Air & Heating, Inc. offers financing on approved credit for qualified Weil-McLain boiler installations. Ask about current financing options when you schedule your free estimate.
Weil-McLain Combi Boiler — FAQ
What is a combi boiler and how does it work?
A combination (combi) boiler provides both space heating and domestic hot water from a single unit. When a hot water tap is opened, the combi boiler prioritizes domestic hot water production. When the thermostat calls for heat, it provides space heating. The Weil-McLain ECO Tec Series 3 Combi uses a high-efficiency condensing heat exchanger for both functions.
Is a combi boiler right for my Chicago home?
Combi boilers are ideal for smaller homes, apartments, and gut-rehab projects where space is limited and hot water demand is moderate. For larger homes with high simultaneous hot water demand (multiple showers running at once), a separate boiler and water heater may be more appropriate. D's Air & Heating will assess your specific needs during the free estimate.
What Weil-McLain combi boiler does D's Air install?
D's Air & Heating installs the Weil-McLain ECO Tec Series 3 Combi — a high-efficiency condensing combi boiler that provides both space heating and domestic hot water with up to 95% AFUE efficiency.
Do I need a chimney for a Weil-McLain combi boiler?
No. The ECO Tec Series 3 Combi uses PVC direct venting — it vents through a small PVC pipe that exits through an exterior wall or roof. No chimney is required.
How long does a combi boiler installation take?
Most combi boiler installations take one full day — 6 to 8 hours. Installations requiring new piping or venting routes may take longer. D's Air & Heating will give you a specific timeline during your free estimate.
How do I schedule a combi boiler installation estimate?
Call (773) 940-0965 or book online. D's Air & Heating provides free in-home estimates with no obligation. We serve Chicago and the southwest suburbs.
Weil-McLain Boiler Installation & Service Experts
D's Air & Heating proudly provides professional Weil-McLain boiler installation, replacement, repair, maintenance, and emergency service throughout Chicago and surrounding communities. Weil-McLain is recognized as one of the most trusted names in the boiler industry, delivering reliable heating solutions for residential, commercial, steam, and hot water applications.
Our experienced boiler technicians install and service a wide range of Weil-McLain equipment, including high-efficiency condensing boilers, cast iron hot water boilers, commercial heating systems, and steam boiler applications. Whether you need a new Weil-McLain boiler installation Chicago homeowners and businesses rely on, complete boiler replacement, annual maintenance, or emergency repair service, D's Air & Heating has the expertise to keep your heating system operating safely and efficiently.
We help customers select the right Weil-McLain boiler based on building requirements, heating loads, efficiency goals, and budget considerations while ensuring every installation meets manufacturer specifications and local code requirements.
From residential heating systems to large commercial boiler projects, D's Air & Heating delivers quality workmanship, expert system design, and dependable customer support backed by industry-leading Weil-McLain technology and warranty protection. Our Weil-McLain boiler repair Chicago customers trust us for fast diagnostics, genuine parts, and lasting fixes.
Contact D's Air & Heating today at (773) 940-0965 to schedule your free estimate for Weil-McLain boiler installation, replacement, maintenance, or repair services.
Ready to Schedule Your Weil-McLain Installation?
D's Air & Heating, Inc. — Chicago's Weil-McLain specialists since 2009. IL License #2183457.