D's Air & Heating, Inc.
Weil-McLain 88 Series cast-iron boiler installation Chicago
Weil-McLain Authorized Installer

Weil-McLain 88 Series Boiler Installation in Chicago

Sectional cast-iron boilers built for large Chicago homes, multi-unit buildings, and commercial spaces. Gas and oil compatible — 84% AFUE with proven long-term reliability.

Don't "FREEZE" — Call D's! · Technical Visit — $95.35

Why D's Air & Heating, Inc. Installs the Weil-McLain 88 Series

The 88 Series is the go-to cast-iron boiler for large Chicago homes with high radiator counts, oversized gravity systems, and hydronic layouts needing strong durability. Its sectional design allows precise BTU sizing and decades of reliable service.

Weil-McLain 88 Series Boiler

Modular cast-iron sections allow precise BTU sizing and easy field replacement of individual sections.

Weil-McLain 88 Series Boiler

The 88 Series accepts both natural gas and oil burners — ideal for Chicago buildings converting from oil.

Weil-McLain 88 Series Boiler

Reliable atmospheric efficiency with proven long-term performance in Chicago's demanding winters.

Weil-McLain 88 Series Boiler

Category I venting works with existing chimney flues in older Chicago homes and multi-unit buildings.

Weil-McLain 88 Series Boiler

Scalable from 105,000 BTU single-family up to 245,000+ BTU for multi-unit and commercial applications.

Weil-McLain 88 Series Boiler

Weil-McLain has heated Chicago homes for over 140 years — the 88 Series is built for Midwest winters.

Availability

Same-Day Replacements Available

Standard Labor Rate

$135 / hr

Warranty

Full Manufacturer Warranty Included

Same-Day Installation Available
Book Installation Now
Weil-McLain 88 Series commercial boiler installation — Chicago multi-unit building

Weil-McLain 88 Series — Model Lineup & Installed Pricing

All prices include equipment, labor, permits, and startup. Pricing varies by section count, venting, and piping layout.

Weil-McLain

88-03

Cast-Iron Gas Hot-Water

$6,950
BTU: 105,000 BTU
Efficiency: 84% AFUE
Fuel: Natural Gas / Oil
Venting: Category I / B-Vent
Best for: Older Chicago homes with hot water radiators or baseboard

Installed price includes equipment, labor, permits & startup

Weil-McLain

88-04

Cast-Iron Gas Hot-Water

$7,750
BTU: 140,000 BTU
Efficiency: 84% AFUE
Fuel: Natural Gas / Oil
Venting: Category I / B-Vent
Best for: Larger homes and two-flats with high radiator counts

Installed price includes equipment, labor, permits & startup

Weil-McLain

88-05

Cast-Iron Gas Hot-Water

$8,450
BTU: 175,000 BTU
Efficiency: 84% AFUE
Fuel: Natural Gas / Oil
Venting: Category I / B-Vent
Best for: Large homes, greystones, and small multi-unit buildings

Installed price includes equipment, labor, permits & startup

Weil-McLain

88-06

Cast-Iron Gas Hot-Water

$9,250
BTU: 210,000 BTU
Efficiency: 84% AFUE
Fuel: Natural Gas / Oil
Venting: Category I / B-Vent
Best for: Multi-unit buildings, churches, and commercial spaces

Installed price includes equipment, labor, permits & startup

Weil-McLain

88-07

Cast-Iron Gas Hot-Water

$10,450
BTU: 245,000 BTU
Efficiency: 84% AFUE
Fuel: Natural Gas / Oil
Venting: Category I / B-Vent
Best for: Large commercial and multi-unit with heavy hydronic loads

Installed price includes equipment, labor, permits & startup

Weil-McLain 88 Series — Residential

The 88 Series is ideal for large Chicago homes with high radiator counts, oversized gravity systems, and hydronic layouts needing strong cast-iron durability. Excellent for older homes requiring high BTU output and long service life. Compatible with existing B-Vent chimney flues — no new venting required in most cases.

  • Large single-family homes
  • Chicago two-flats and three-flats
  • Gravity hot-water systems
  • Oil-to-gas conversions
  • Homes with cast-iron radiators

Weil-McLain 88 Series — Commercial & Multi-Unit

The 88 Series is widely used in multi-unit buildings, small commercial spaces, churches, schools, and mixed-use properties. Its sectional cast-iron design allows scalable BTU output and reliable performance under heavy load — a proven workhorse for Chicago's toughest commercial heating demands.

  • Multi-unit apartment buildings
  • Churches and schools
  • Mixed-use commercial properties
  • Light industrial heating
  • High-BTU commercial replacements

Service Call Policy — D's Air & Heating, Inc.

  1. The service call fee covers travel and full diagnostics only.
  2. The service call fee is not deducted from the total cost of any repair or installation.
  3. After diagnostics, we provide clear repair or replacement options with upfront, itemized pricing.
  4. Once you approve the Maintenance Agreement, your 15% discount becomes active and is automatically applied to the repair or installation estimate.
  5. The 15% discount does not apply to the initial service call fee.

A $95.35 Service Call Fee is Required for All Service Appointments, Including Warranty Claims.

Compare Weil-McLain 88 Series to Other Boiler Brands

See how the 88 Series stacks up against Burnham, Navien, Peerless, and other brands we install in Chicago.

Boiler Installation & Replacement – Chicago

D's Air & Heating provides complete boiler installation and replacement for Chicago homes, multi-unit buildings, and commercial spaces. Since 2009, we've installed and serviced every major boiler manufacturer, including Weil-McLain (WM), Burnham/U.S. Boiler (BN), Navien (NAV), Lochinvar (LOCH), Pennco (PN), Crown (CR), Green Mountain (GM), Dunkirk (DK), and NTI. Our process includes proper boiler sizing, clean hydronic piping layout, venting verification, circulator placement, zone balancing, gas service checks, and full system startup with safety testing. We install cast-iron gas boilers, oil boilers, high-efficiency condensing boilers, and combi units that provide heat plus domestic hot water. Each project begins with a radiator and baseboard evaluation to ensure even heat distribution and correct system flow. We specialize in replacing outdated boilers with modern high-efficiency systems that reduce energy use and improve comfort. Residential customers benefit from quiet operation, reliable heating, and long equipment life. Commercial clients receive engineered solutions for multi-unit hydronic systems, small commercial buildings, and mixed-use properties. Our star-rated lineup helps customers compare performance: Weil-McLain ★★★★★, Burnham ★★★★☆, Navien ★★★★★, Lochinvar ★★★★★, Pennco ★★★☆☆, Crown ★★★☆☆, Green Mountain ★★★☆☆, Dunkirk ★★★☆☆, NTI ★★★★★. All boiler pages are fully indexed for search, including abbreviations WM, BN, NAV, LOCH, PN, CR, GM, DK, and NTI. Whether upgrading a home boiler or replacing a commercial system, D's Air delivers clean, code-compliant installations built for Chicago's toughest winters.

Residential Boiler Installation – Chicago

High-efficiency residential boilers installed with proper sizing, venting, and piping.

Residential Brand Ratings

  • Weil-McLain (WM)★★★★★
  • Burnham / U.S. Boiler (BN)★★★★☆
  • Navien (NAV)★★★★★
  • Lochinvar (LOCH)★★★★★
  • Pennco (PN)★★★☆☆

Residential Applications

Chicago homes with radiators, baseboards, multi-zone hydronic systems, and combi setups. Our residential boiler installations cover single-family homes, two-flats, three-flats, greystones, and vintage buildings throughout the Chicago metro area.

Commercial Boiler Installation – Chicago

Light-commercial and multi-unit boiler systems with high-efficiency condensing options.

Commercial Brand Ratings

  • Weil-McLain (WM)★★★★★
  • Burnham / U.S. Boiler (BN)★★★★☆
  • Navien (NAV)★★★★★
  • Lochinvar (LOCH)★★★★★
  • Dunkirk (DK)★★★☆☆
  • NTI★★★★★

Commercial Applications

Multi-unit buildings, small commercial spaces, hydronic zoning, and high-load systems. D's Air & Heating serves apartment buildings, mixed-use properties, small office buildings, and light industrial facilities throughout Chicago and surrounding suburbs.

Boiler Brand Comparison Chart

Compare the top boiler brands D's Air & Heating installs in Chicago — AFUE, type, best use, and star ratings.

BrandRatingTypeAFUEBest Use
Weil-McLain (WM)★★★★★Cast-Iron / Gas82–96%Radiators, multi-unit, vintage homes
Burnham / U.S. Boiler (BN)★★★★☆Cast-Iron / Gas & Oil82–95%Older homes, oil-to-gas conversions
Navien (NAV)★★★★★Condensing Combi95–97%High-efficiency + domestic hot water
Lochinvar (LOCH)★★★★★Condensing95–96%Large homes, commercial, multi-zone
Pennco (PN)★★★☆☆Cast-Iron / Gas83–86%Budget installs, chimney-vented systems
Dunkirk (DK)★★★☆☆Cast-Iron / Gas82–95%Multi-unit buildings, steam systems
NTI★★★★★Condensing95–97%High-efficiency installs, combi systems

AFUE ranges reflect full model lineups. Installed prices vary by model, BTU, and site conditions. Call (773) 940-0965 for a free estimate.

Commercial HVAC Installation

Full Commercial HVAC Installation

D's Air provides full commercial HVAC installation for rooftop units, split systems, packaged units, and large-capacity heating & cooling equipment. Professional scheduling, load calculations, and building compliance included.

Book Commercial Installation

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.

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 Install a Weil-McLain 88 Series in Chicago?

Licensed & insured. IL License #2183457. Serving Chicago and surrounding areas since 2009.

📅 Book Online📞 Don't Freeze — Call D's!🚨 Need Help ASAP?Same-Day HVAC Service Available