Authorized Peerless Boiler Dealer Serving Chicago Since 2009
Peerless Series 211A Commercial Steam Boiler — Chicago
Large-capacity cast-iron atmospheric steam boilers for apartment buildings, schools, churches, municipal buildings, and institutional facilities. Eight models from 211A-05 through 211A-12, installed from $44,995. D's Air & Heating, Inc. — IL License #2183457.
Peerless Series 211A — Chicago's Large Commercial Steam Boiler
The Peerless Series 211A is the largest cast-iron commercial steam boiler in the Peerless lineup, covering input capacities from 840,000 to 2,310,000 BTU/hr. When a Chicago apartment building, school, church, or institutional facility needs more heating capacity than the Series 64 can provide, the 211A is the next step up. D's Air & Heating, Inc. installs and replaces 211A Series boilers throughout Chicago.
D's Air Ratings
Series 211A Pricing — 2026 D's Air & Heating
Larger boilers = lower cost per BTU. Although larger boilers have higher total project costs, the installed cost per BTU decreases as size increases because labor, controls, permitting, startup, engineering, commissioning, and project management costs are spread across more heating capacity.
| Model | Input BTU | Sale Price | Installed |
|---|---|---|---|
| 211A-05 | 840,000 BTU | $29,995 | $44,995 |
| 211A-06 | 1,050,000 BTU | $32,995 | $47,995 |
| 211A-07 | 1,260,000 BTU | $37,995 | $52,995 |
| 211A-08 | 1,470,000 BTU | $41,995 | $56,995 |
| 211A-09 | 1,680,000 BTU | $44,995 | $59,995 |
| 211A-10 | 1,890,000 BTU | $47,995 | $62,995 |
| 211A-11 | 2,100,000 BTU | $49,995 | $64,995 |
| 211A-12 | 2,310,000 BTU | $52,995 | $67,995 |
Installed pricing includes equipment, standard removal and replacement labor, rigging, piping reconnections, controls, startup, commissioning, and permit allowance. Pricing assumes standard commercial boiler room access and existing utility services. Additional controls, feed systems, pumps, venting modifications, crane service, electrical upgrades, gas service upgrades, engineering, or code-required accessories are quoted separately as required.
Equipment & Materials Included ($29,995 Value)
Boiler Equipment
- Peerless 211A-05-S Commercial Steam Boiler
- 840,000 BTU Input Capacity
- CSD-1 Control Package
- Factory Boiler Trim Package
- ASME Safety Relief Valve
- Gauge Glass Assembly
- Operating Pressure Controls
- Primary Low Water Cut-Off
- Boiler Jacket & Insulation
Installation Materials
- Black steel steam piping and fittings
- Condensate return piping materials
- Blowdown piping materials
- Gas piping materials and fittings
- Vent connector materials
- Electrical conduit and fittings
- Controls wiring and terminations
- Isolation valves as required
- Pipe hangers and supports
- Insulation touch-up materials
- Gaskets, sealants, and consumables
Labor & Installation Included ($13,000 Value)
- Removal and disposal of existing boiler
- Rigging and placement of new Peerless Series 211A boiler
- Steam piping modifications and reconnections
- Condensate and blowdown piping work
- Gas piping reconnection and testing
- Venting system reconnection
- Electrical and control wiring integration
- Startup, commissioning, and combustion tuning
- Safety control verification and testing
- Project management and jobsite cleanup
Installed pricing includes equipment, standard removal and replacement labor, rigging, piping reconnections, controls, startup, commissioning, and permit allowance. Pricing assumes standard commercial boiler room access and existing utility services. Additional controls, feed systems, pumps, venting modifications, crane service, electrical upgrades, gas service upgrades, engineering, or code-required accessories are quoted separately as required.
Standard Installation Includes
- Peerless Series 211A steam boiler with factory CSD-1 package
- Standard factory controls and burner assembly
- Removal of existing boiler (standard access)
- Rigging and placement of new boiler
- Steam, condensate, and blowdown piping connections
- Gas piping reconnection
- Venting and flue connection
- Control wiring
- Primary LWCO, operating pressure control, gauge glass, safety relief valve
- Startup labor and combustion setup
- Safety control testing, LWCO testing, operating control verification
- Steam production verification and system startup report
- Standard permit allowance, equipment submittals, startup documentation
- Owner training and orientation
Typically Quoted Separately
- —Boiler feed unit or condensate receiver replacement
- —Chemical feed systems or deaerators
- —Stack replacement or chimney liner
- —New pumps or secondary LWCO
- —Building automation integration
- —Asbestos abatement or structural modifications
- —Crane service (quoted separately if required)
- —Gas or electrical service upgrades
- —Engineered stamped drawings
Best Applications
- Apartment buildings and multi-family housing
- Schools and educational facilities
- Churches and houses of worship
- Municipal buildings and government facilities
- Institutional facilities
- Commercial steam heating systems
Need a smaller boiler?
The Peerless Series 64 covers 345,000–630,000 BTU/hr, installed from $39,995.
View Series 64The 211A Series is the preferred choice for large Chicago apartment complexes, schools, and institutional buildings with high steam heating demands. Its cast-iron sectional construction provides the same proven durability as the Series 64, scaled up to handle the largest commercial steam heating loads in the Chicago market.
D's Air & Heating, Inc. handles every aspect of 211A Series commercial boiler replacement, from initial site assessment and engineering consultation through permit acquisition, installation, and commissioning. Our complete installed packages include all controls, piping, and startup — no hidden costs.
The 211A-05 starts at $44,995 installed for 840,000 BTU/hr. For buildings that need less than 840,000 BTU/hr, the Peerless Series 64 covers 345,000–630,000 BTU/hr and is available from D's Air & Heating starting at $39,995 installed.
Peerless Boiler Installation & Service Experts
D's Air & Heating proudly provides professional Peerless boiler installation, replacement, repair, maintenance, and emergency service throughout Chicago and surrounding communities. Peerless Boilers has earned a reputation for manufacturing dependable, energy-efficient residential and commercial heating systems designed to deliver long-lasting performance and reliable comfort.
Our experienced boiler technicians install and service a wide range of Peerless heating equipment, including cast iron boilers, high-efficiency condensing boilers, steam boilers, and hot water boiler systems. Whether you need a new Peerless 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, efficiently, and reliably throughout the year.
We help homeowners, property managers, and commercial building owners select the right Peerless boiler for their specific heating requirements, efficiency goals, and budget. Every installation is completed according to manufacturer specifications and local code requirements, ensuring safe, reliable operation and full warranty coverage.
From residential steam and hot water boilers to large commercial boiler systems, D's Air & Heating delivers quality workmanship, expert system design, and dependable customer support backed by Peerless technology and warranty protection. Our Peerless 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 Peerless boiler installation, replacement, maintenance, or repair services.
Request a Series 211A Commercial Boiler Estimate
D's Air & Heating, Inc. installs and replaces Peerless Series 211A commercial steam boilers throughout Chicago. Contact us for a free estimate.
IL License #2183457 · Serving Chicago Since 2009
Why Chicago Homeowners Trust D's Air & Heating
Licensed & Insured
IL License #2183457
Serving Chicago
Since 2009
Authorized Dealer
Multiple Brands
No Contracts
Ever — Guaranteed
Permit Pulled
Every Installation
Professional Standards
Code-Compliant Work
EPA Certified
Mainstream Engineering
R-410A Certified
Mainstream Engineering
Why Choose D's Air & Heating, Inc.?
Chicago's trusted HVAC company since 2009 — licensed, insured, and committed to honest workmanship on every job.
Experience Since 2009
D's Air & Heating has served Chicago homeowners and businesses since 2009. Over 15 years of local HVAC experience means we've seen every type of system, every Chicago building configuration, and every challenge the city's climate presents.
Manufacturer-Trained Technicians
Our technicians receive ongoing manufacturer training and certification. We install Lennox, Goodman, Amana, Daikin, Sinclair, Weil-McLain, Peerless, and other leading brands — and we know each system inside and out.
Licensed, Insured & Permitted
D's Air & Heating holds Illinois HVAC License #2183457 and carries full liability insurance. We pull City of Chicago permits on every installation — protecting you legally and ensuring the work meets code.
Honest Recommendations
We tell you what you need — not what generates the highest invoice. If your system can be repaired cost-effectively, we'll say so. If replacement makes more sense, we'll explain exactly why. No pressure, no upselling.
Local Chicago Expertise
We know Chicago's housing stock — two-flats, greystones, bungalows, vintage buildings with steam heat, modern construction with forced air. We size and install equipment for the specific demands of Chicago homes and Chicago winters.
Long-Term Customer Support
Our relationship doesn't end at installation. We register your equipment for warranty, remain available for follow-up questions, and provide ongoing maintenance to keep your system running at peak efficiency for years.
Steam Boiler Expertise — What Chicago Building Owners Should Know
How a Steam Heating System Works
A steam boiler heats water to 212°F, producing steam that rises naturally through supply pipes to cast-iron radiators throughout the building. As the steam gives up its heat, it condenses back to water and returns to the boiler by gravity. One-pipe systems use the same pipe for both steam supply and condensate return. Two-pipe systems use separate supply and return lines, allowing better control and zoning.
The Hartford Loop — Why It Matters
The Hartford Loop is a critical safety piping arrangement on steam boilers. It prevents the boiler from losing its water level if a return pipe develops a leak. Without a properly installed Hartford Loop, a pipe failure can drain the boiler dry, causing catastrophic damage. D's Air installs the Hartford Loop correctly on every steam boiler installation.
Steam Boiler Sizing — EDR Calculations
Steam boilers are sized by Equivalent Direct Radiation (EDR) — the total radiation capacity of all the radiators in the building. The boiler must be sized to match the connected radiation, not the building's heat loss. An oversized steam boiler causes water hammer, wet steam, and rapid cycling. D's Air measures EDR on every steam boiler installation.
Water Quality and Treatment
Steam boiler water quality directly affects system performance and longevity. Impurities cause foaming, which produces wet steam and water hammer. Proper pH balance prevents corrosion of the boiler sections and pipes. D's Air tests water quality and recommends treatment on every steam boiler installation and service call.
Common Steam System Problems
The most frequent steam system issues in Chicago buildings: water hammer (banging pipes — usually caused by wet steam, improper pitch, or failed steam traps), uneven heat between floors (failed vents or traps), boiler cycling on low water (LWCO trips — check water level and return lines), and radiators that won't heat (air-bound — replace the air vent).
What to Expect From Your D's Air Steam Boiler Service
System Assessment
We inspect the boiler, near-boiler piping, Hartford Loop, vents, traps, and radiators before recommending any work.
EDR Measurement
For new installations, we measure every radiator in the building to size the replacement boiler correctly.
Written Estimate
You receive a complete written estimate covering equipment, labor, piping, and permits before any work begins.
Installation
Our crew installs the new boiler with proper near-boiler piping, Hartford Loop, and all safety controls.
Startup & Testing
We fill the system, fire the boiler, verify steam pressure, check all vents and traps, and confirm heat to every radiator.
Customer Training
We explain how to check the water level, what the pressuretrol does, and what maintenance is needed annually.
D's Air Steam Boiler Standards — Every Installation
- EDR calculation — boiler sized to match connected radiation
- Hartford Loop installed per industry standard
- Near-boiler piping per manufacturer specifications
- Equalizer pipe properly sized and connected
- Low-water cutoff tested and verified
- Pressuretrol set to correct operating pressure (typically 0.5–2 PSI)
- All steam vents and traps inspected and replaced as needed
- Water quality tested — treatment recommended if needed
- Gas pressure test and combustion analysis at startup
- City of Chicago permit pulled on every installation
What Our Customers Say
Based on Google Reviews — D's Air & Heating, Inc.
Marcus T.
Furnace Replacement
"D's Air & Heating did an outstanding job replacing my furnace. Darryl was professional, on time, and explained everything clearly. The installation was clean and the system works perfectly. Highly recommend."
Latoya W.
Boiler Repair
"Called D's Air when my boiler stopped working in January. They came out the same day, diagnosed the problem quickly, and had it running again within hours. Fair pricing and excellent service."
James R.
AC Installation
"Installed a new central AC system for us this summer. The crew was respectful of our home, cleaned up after themselves, and the system runs quietly and efficiently. Very satisfied."
Ready to Work With Chicago's Trusted HVAC Company?
D's Air & Heating, Inc. — Serving Chicago Since 2009. Licensed, Insured, No Contracts.