D's Air & Heating, Inc.
Dunkirk Authorized Installer

Dunkirk Boiler Installation in Chicago

American-made steam, combi, and condensing boilers for Chicago homes. D's Air installs every Dunkirk model — upfront pricing, no contracts.

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

Why Dunkirk?

Dunkirk has been manufacturing boilers in New York since 1928. Their lineup spans traditional cast-iron steam for vintage Chicago homes to modern condensing combi-boilers — giving homeowners the right tool for every application.

Dunkirk Boiler

Dunkirk boilers are made in Dunkirk, New York — American quality since 1928.

Dunkirk Boiler

Dunkirk offers both traditional cast-iron steam and modern condensing combi-boilers.

Dunkirk Boiler

Q95M series modulates from 20–100% capacity — maximum efficiency at every load.

Dunkirk Boiler

DCB series provides both space heating and domestic hot water from a single compact unit.

Dunkirk Boiler

Dunkirk steam boilers are a proven choice for Chicago's pre-war housing stock.

Dunkirk Boiler

Condensing models include built-in condensate management for code-compliant installation.

Dunkirk Models We Install

All installed prices include equipment, labor, permits, and startup. Price confirmed before work begins.

Dunkirk

2EG-Steam 100

Cast-Iron Steam

$9,950
BTU: 100,000 BTU Input
Efficiency: 82% AFUE
Fuel: Natural Gas
Venting: Category I / B-Vent
Best for: Smaller vintage homes, single-pipe steam systems

Installed price includes equipment, labor, permits & startup

Dunkirk

2EG-Steam 150

Cast-Iron Steam

$11,450
BTU: 150,000 BTU Input
Efficiency: 82% AFUE
Fuel: Natural Gas
Venting: Category I / B-Vent
Best for: Chicago two-flats, medium vintage homes

Installed price includes equipment, labor, permits & startup

Dunkirk

DCB Combi-Boiler

Condensing Combi — Heat + DHW

$10,950
BTU: 120,000 BTU
Efficiency: 95% AFUE
Fuel: Natural Gas / Propane
Venting: Direct Vent / PVC
Best for: Homes needing both heat and domestic hot water in one unit

Installed price includes equipment, labor, permits & startup

Dunkirk

Q95M-200

Modulating Condensing Hot-Water

$9,750
BTU: 200,000 BTU
Efficiency: 95% AFUE
Fuel: Natural Gas / Propane
Venting: Direct Vent / PVC
Best for: High-efficiency retrofits, multi-zone systems

Installed price includes equipment, labor, permits & startup

Dunkirk

XEB-350

Cast-Iron Steam

$14,950
BTU: 350,000 BTU Input
Efficiency: 82% AFUE
Fuel: Natural Gas
Venting: Category I / B-Vent
Best for: Large two-flats, greystones, multi-unit buildings

Installed price includes equipment, labor, permits & startup

Dunkirk Commercial Steam Boilers

Floor-standing cast-iron steam boilers built for large commercial and multi-unit applications. Installed and serviced by D's Air & Heating, Inc. — licensed & insured in Illinois.

Dunkirk D250 Commercial Steam Gas Boiler — floor-standing cast-iron

Dunkirk Commercial

D250

Commercial Steam Gas Boiler

Efficiency79% Thermal
TypeSteam — Heating Only
ConstructionCast Iron
MountingFloor Standing
FuelNatural Gas
Best for: Schools, churches, and multi-unit buildings with existing steam distribution.
Get a Commercial Quote

Site survey required for installed pricing.

Dunkirk D250 Commercial Water Gas Boiler — floor-standing cast-iron

Dunkirk Commercial

D250

Commercial Water Gas Boiler

Efficiency80% Thermal
TypeHot Water — Heating Only
ConstructionCast Iron
MountingFloor Standing
FuelNatural Gas
Best for: Large commercial buildings and multi-unit properties with hot water baseboard or radiant systems.
Get a Commercial Quote

Site survey required for installed pricing.

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 All Boiler Brands

See how Dunkirk stacks up against Weil-McLain, Crown, Green Mountain, Navien, and NTI side by side.

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.

Ready to Install a Dunkirk Boiler?

D's Air & Heating, Inc. — Chicago's trusted Dunkirk installer since 2009. No contracts. Upfront pricing. IL License #2183457.

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