NTI Boiler Installation in Chicago
High-efficiency condensing boilers engineered for precision — TRX hot-water, TFT combi, and Vmax commercial. D's Air installs every NTI model.
Why NTI?
NTI (New Thermal Inc.) has been engineering precision condensing boilers since 1977. Their TRX and TFT series feature 10:1 modulating burners, 316L stainless steel heat exchangers, and ultra-low NOx emissions — making them one of the most technically advanced boilers available for Chicago homes.
NTI Boiler
NTI (New Thermal Inc.) has been engineering high-efficiency boilers in Canada since 1977.
NTI Boiler
NTI boilers meet the strictest emissions standards — ideal for environmentally conscious homeowners.
NTI Boiler
TRX and TFT series modulate from 10–100% — exceptional efficiency at partial loads.
NTI Boiler
316L stainless steel heat exchanger resists corrosion and is backed by a 10-year warranty.
NTI Boiler
Vmax series scales to 1,000,000 BTU — ideal for multi-unit buildings and cascade configurations.
NTI Boiler
TFT series provides both space heating and domestic hot water from a single compact unit.
NTI Models We Install
All installed prices include equipment, labor, permits, and startup. Price confirmed before work begins.
NTI
TRX 60
Condensing Hot-Water Boiler
Installed price includes equipment, labor, permits & startup
NTI
TRX 85
Condensing Hot-Water Boiler
Installed price includes equipment, labor, permits & startup
NTI
TRX 150
Condensing Hot-Water Boiler
Installed price includes equipment, labor, permits & startup
NTI
TFT 150
Condensing Combi-Boiler
Installed price includes equipment, labor, permits & startup
NTI
TFT 199
Condensing Combi-Boiler
Installed price includes equipment, labor, permits & startup
NTI
Vmax 1000
Commercial Condensing
Installed price includes equipment, labor, permits & startup
Service Call Policy — D's Air & Heating, Inc.
- The service call fee covers travel and full diagnostics only.
- The service call fee is not deducted from the total cost of any repair or installation.
- After diagnostics, we provide clear repair or replacement options with upfront, itemized pricing.
- Once you approve the Maintenance Agreement, your 15% discount becomes active and is automatically applied to the repair or installation estimate.
- 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 NTI stacks up against Weil-McLain, Crown, Green Mountain, Dunkirk, and Navien 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.
| Brand | Rating | Type | AFUE | Best Use |
|---|---|---|---|---|
| Weil-McLain (WM) | ★★★★★ | Cast-Iron / Gas | 82–96% | Radiators, multi-unit, vintage homes |
| Burnham / U.S. Boiler (BN) | ★★★★☆ | Cast-Iron / Gas & Oil | 82–95% | Older homes, oil-to-gas conversions |
| Navien (NAV) | ★★★★★ | Condensing Combi | 95–97% | High-efficiency + domestic hot water |
| Lochinvar (LOCH) | ★★★★★ | Condensing | 95–96% | Large homes, commercial, multi-zone |
| Pennco (PN) | ★★★☆☆ | Cast-Iron / Gas | 83–86% | Budget installs, chimney-vented systems |
| Dunkirk (DK) | ★★★☆☆ | Cast-Iron / Gas | 82–95% | Multi-unit buildings, steam systems |
| NTI | ★★★★★ | Condensing | 95–97% | 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 an NTI Boiler?
D's Air & Heating, Inc. — Chicago's trusted NTI installer since 2009. No contracts. Upfront pricing. IL License #2183457.