Boiler Brand Comparison Chart
Weil-McLain, Burnham, Navien, Lochinvar, Crown, Green Mountain, Dunkirk, NTI, and more — compared side by side with installed pricing, efficiency, fuel type, and warranty highlights. D's Air installs every brand.
Side-by-Side Comparison
All installed prices include equipment, labor, permits, and startup. Price confirmed before work begins.
| Brand | Model | Type | BTU | Efficiency | Fuel | Venting | Best For | Warranty | Installed Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| Weil-McLain | WM97+ 110 | Condensing Hot-Water | 110,000 BTU | 96% AFUE | Natural Gas / Propane | Direct Vent / PVC | High-efficiency retrofit, multi-zone homes | Limited heat exchanger + parts | $8,750 | Details |
| Weil-McLain | GSA-282 | Thermoelectric Steam | 282,000 BTU Input | 82% AFUE | Natural Gas | Category I / B-Vent | Chicago two-flats, greystones, vintage steam systems | Limited heat exchanger + parts | $13,795 | Details |
| Burnham / U.S. Boiler | ES2-3 | Cast-Iron Hot-Water | 105,000 BTU | 84% AFUE | Natural Gas / Oil | Chimney / B-Vent | Older homes, oil-to-gas upgrades, vintage radiator systems | Limited heat exchanger + parts | $7,200 | Details |
| Burnham / U.S. Boiler | Alpine ALP150 | Condensing Hot-Water | 150,000 BTU | 95% AFUE | Natural Gas / Propane | Direct Vent / PVC | High-efficiency retrofit, multi-zone, radiant floor | Limited heat exchanger + parts | $9,450 | Details |
| Navien | NCB-240E | Condensing Combi | 240,000 BTU | 95% AFUE | Natural Gas / Propane | Direct Vent / PVC | Larger homes, high DHW demand, multi-zone | Extended heat exchanger coverage | $11,450 | Details |
| Navien | NHB-150 | Condensing Hot-Water | 150,000 BTU | 95% AFUE | Natural Gas / Propane | Direct Vent / PVC | Medium to large homes, multi-zone hydronic | Extended heat exchanger coverage | $9,200 | Details |
| Lochinvar | KNIGHT KHB199 | Condensing Hot-Water | 199,000 BTU | 95% AFUE | Natural Gas / Propane | Direct Vent / PVC | Larger homes, light commercial, multi-zone hydronic | Limited heat exchanger + controls | $10,200 | Details |
| Lochinvar | CREST CBN1000 | Condensing Hot-Water | 1,000,000 BTU | 96% AFUE | Natural Gas / Propane | Direct Vent / Stainless | Large commercial buildings, schools, multi-family | Limited heat exchanger + controls | Call for Quote | Details |
| Green Mountain | GMGS-299 | Cast-Iron Steam | 299,000 BTU Input | 82% AFUE | Natural Gas | Category I / B-Vent | Premium steam systems, Chicago vintage housing | Limited heat exchanger + parts | $13,350 | Details |
| Crown | BSI-276-ENP | Cast-Iron Steam | 276,000 BTU Input | 82% AFUE | Natural Gas | Category I / B-Vent | Chicago two-flats, greystones, auto water feeder included | Limited heat exchanger + parts | $13,750 | Details |
| Crown | PHNTM-80 | Condensing Hot-Water | 80,000 BTU | 95% AFUE | Natural Gas / Propane | Direct Vent / PVC | High-efficiency retrofits, tight spaces | Limited heat exchanger + parts | $7,950 | Details |
| Dunkirk | 2EG-Steam 150 | Cast-Iron Steam | 150,000 BTU Input | 82% AFUE | Natural Gas | Category I / B-Vent | Chicago two-flats, medium vintage homes | Limited heat exchanger + parts | $11,450 | Details |
| Dunkirk | DCB Combi | Condensing Combi | 120,000 BTU | 95% AFUE | Natural Gas / Propane | Direct Vent / PVC | Heat + domestic hot water in one compact unit | Limited heat exchanger + parts | $10,950 | Details |
| NTI | TRX 150 | Condensing Hot-Water | 150,000 BTU | 95% AFUE | Natural Gas / Propane | Direct Vent / PVC | Larger homes, radiant floor, multi-zone | 10-yr stainless steel heat exchanger | $9,750 | Details |
| NTI | TFT 199 | Condensing Combi | 199,000 BTU | 95% AFUE | Natural Gas / Propane | Direct Vent / PVC | Larger homes, high DHW demand, multi-zone combi | 10-yr stainless steel heat exchanger | $11,950 | Details |
| Pennco | 15B-060K | Cast-Iron Hot-Water | 59,000 BTU | 84% AFUE | Natural Gas | Chimney / B-Vent | Budget replacement, small apartments, single-zone | Limited heat exchanger + parts | $6,800 | Details |
| Pennco | 15B-095K | Cast-Iron Hot-Water | 92,500 BTU | 84% AFUE | Natural Gas | Chimney / B-Vent | Budget replacement, medium homes, multi-radiator | Limited heat exchanger + parts | $6,869 | Details |
| Pennco | 15B-150K | Cast-Iron Hot-Water | 149,000 BTU | 84% AFUE | Natural Gas | Chimney / B-Vent | Budget replacement, medium-large homes, heavy radiator loads | Limited heat exchanger + parts | $7,588 | Details |
| Pennco | 15B-235K | Cast-Iron Hot-Water | 235,000 BTU | 84% AFUE | Natural Gas | Chimney / B-Vent | Budget high-capacity, multi-family, large radiator systems | Limited heat exchanger + parts | $9,484 | Details |
Weil-McLain
WM97+ 110
Condensing Hot-Water
Weil-McLain
GSA-282
Thermoelectric Steam
Burnham / U.S. Boiler
ES2-3
Cast-Iron Hot-Water
Burnham / U.S. Boiler
Alpine ALP150
Condensing Hot-Water
Navien
NCB-240E
Condensing Combi
Navien
NHB-150
Condensing Hot-Water
Lochinvar
KNIGHT KHB199
Condensing Hot-Water
Lochinvar
CREST CBN1000
Condensing Hot-Water
Green Mountain
GMGS-299
Cast-Iron Steam
Crown
BSI-276-ENP
Cast-Iron Steam
Crown
PHNTM-80
Condensing Hot-Water
Dunkirk
2EG-Steam 150
Cast-Iron Steam
Dunkirk
DCB Combi
Condensing Combi
NTI
TRX 150
Condensing Hot-Water
NTI
TFT 199
Condensing Combi
Pennco
15B-060K
Cast-Iron Hot-Water
Pennco
15B-095K
Cast-Iron Hot-Water
Pennco
15B-150K
Cast-Iron Hot-Water
Pennco
15B-235K
Cast-Iron Hot-Water
How to Choose the Right Boiler
Not sure which brand is right for your home? Here is a quick guide based on your situation.
You have a steam system (radiators)
Weil-McLain GSA-282, Green Mountain GMGS-299, or Crown BSI-276-ENP. All three are purpose-built for Chicago vintage steam systems.
You want maximum efficiency
Navien NCB or NHB series (up to 97% AFUE), NTI TRX series (95% AFUE), Lochinvar KNIGHT (95% AFUE), or Weil-McLain WM97+ (96% AFUE). All use PVC venting.
You want heat + hot water in one unit
Navien NCB combi-boiler, Dunkirk DCB combi, or NTI TFT combi. Eliminates the need for a separate water heater.
You have a large two-flat or multi-unit
Weil-McLain LGB commercial, Lochinvar CREST, or Dunkirk XEB-350. D's Air sizes every system to your building.
You have an older home or oil system
Burnham ES2 cast-iron handles oil-to-gas conversions and older radiator systems. American-made since 1873 with proven reliability.
You want American-made
Weil-McLain (USA), Crown Boiler (USA), Dunkirk (USA), and Burnham / U.S. Boiler (USA) are all manufactured domestically.
You want advanced controls & multi-zone
Lochinvar KNIGHT with SMART SYSTEM controls offers 5:1 modulation and full BAS integration — ideal for larger homes and light commercial.
You want the best warranty
NTI offers a 10-year stainless steel heat exchanger warranty. Weil-McLain and Navien offer up to 10 years on select models.
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.
Not Sure Which Boiler Is Right for You?
D's Air & Heating, Inc. will assess your home, recommend the right system, and give you an upfront installed price — no contracts, no surprises. IL License #2183457.