New Yorker CI-HGS 3-Pass Water
Model Number: CI-HGS-74E/101E/123E/160E
A three-pass oil hot water boiler rated 87% AFUE, with 84,000–182,000 BTU/hr input and optional direct venting on two sizes.
Technical Specifications
Source: manufacturer spec sheet · checked Sep 27, 2026
Prices depend on sizing, venting and piping in your home, so we quote every installation.
Sizing: the right size comes from a room-by-room heat-loss calculation, not the size of the old boiler or a rule of thumb. Oversized boilers short-cycle and waste fuel; steam systems are sized to the connected radiation instead. See how we approach boiler installation.
Home-Specific Operating Cost Review
No guaranteed annual savings or payback period
Historical Use
Fuel consumption and weather
Current Rates
Utility and delivered-fuel prices
System Design
Load, piping, controls, and temperatures
Full Specifications
- Model Number
- CI-HGS-74E/101E/123E/160E
- Efficiency (AFUE)
- 87%
- Boiler Type
- Oil hot water Boiler
- Fuel
- oil
- Venting
- natural draft
- BTU Input Range
- 84k - 182k BTU
- Domestic Hot Water
- indirect-ready
- In Production
- Yes
- Parts Warranty
- 1-year (standard)
- Heat Exchanger Warranty
- lifetime limited
Specifications sourced from the manufacturer spec sheet, checked Sep 27, 2026.
Ideal For
Oil-heated hot water homes that want a higher-efficiency three-pass cast-iron boiler.
Expert Review: New Yorker CI-HGS 3-Pass Water
The New Yorker CI-HGS is a three-pass cast-iron oil boiler for hot water heat, rated 87% AFUE. Four sizes cover 84,000 to 182,000 BTU/hr input. It burns #2 heating oil and is normally chimney vented; New Yorker lists an optional direct-vent kit for the 1.00 and 1.30 GPH sizes. It can be paired with an indirect tank for domestic hot water. New Yorker lists a lifetime limited heat-exchanger warranty.
Key Features & Technology
Three-pass cast-iron heat exchanger
87% AFUE
CI-HGS-74E, 101E, 123E and 160E sizes
About 84,000–182,000 BTU/hr
Chimney vent
Indirect water heater ready
Advantages
- Three-pass design for better heat transfer
- Lifetime limited heat exchanger warranty
- Sizes suit typical single-family homes
Considerations
- Needs annual oil service
- Needs a lined chimney
- Largest size stops at about 182,000 BTU/hr
Sizing & Installation Notes
Hot water boilers like the CI-HGS 3-Pass Water are sized from a room-by-room heat-loss calculation. We never match the old boiler's size — oversized units short-cycle, waste fuel and wear out years early.
Every New Yorker Boiler installation starts with a free in-home assessment covering the heat-loss calculation, venting and chimney condition, gas or oil supply sizing, and permit requirements for your town. Learn more about our boiler installation process, or see current rebate and incentive programs that may apply.
Warranty & Protection
Parts Warranty
1-year (standard)
Heat Exchanger
lifetime limited
Our Guarantee
100% Satisfaction
All New Yorker Boiler boiler installations by Home+ Air & Heat include our 1-year workmanship warranty, covering labor and any installation-related issues.
Compare the New Yorker Boiler Lineup
| Model | Efficiency | BTU Range | Fuel | Heat Exchanger Warranty |
|---|---|---|---|---|
| CI-HGS 3-Pass Water (this model) | 87% AFUE | 84k - 182k BTU | oil | lifetime limited |
| AP-U | 86.2% AFUE | 110k - 154k BTU | oil | lifetime limited |
| FR / FR-HGS | 86.7% AFUE | 112k - 231k BTU | oil | lifetime limited |
| CL Steam | 86.4% AFUE | 91k - 230k BTU | oil | 10-year limited |
| GHE-II Combi | 95% AFUE | 14k - 150k BTU | natural gas/propane | 12-year limited |
| CG-F Water | 84% AFUE | 38k - 280k BTU | natural gas/propane | lifetime limited (prorated per general warranty schedule) |
| CL Water | 87% AFUE | 92k - 231k BTU | oil | lifetime limited |
| CGS-C Steam | 82.2% AFUE | 69k - 241k BTU | natural gas/propane | 10-year limited |
| PVCG-C Water | 85% AFUE | 63k - 245k BTU | natural gas/propane | lifetime limited |
| GHE-II heating | 95% AFUE | 8k - 180k BTU | natural gas/propane | 12-year limited |
See the full New Yorker Boiler brand page for lineup context, or browse the Best Oil Boilers 2027 guide to compare across brands.
Frequently Asked Questions
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