New Yorker CGS70-CNIH (CGS 70 ANI-ME 2) 210,000 BTU Steam Boiler

  • SKU #: BURCGS70CNIH
  • UPC #: 067261671563
  • MPN #: CGS70CNI-H
MSRP: $6,295.00
$5,364.97
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Powerful Steam Heating: Introducing the New Yorker CGS70-CNIH Boiler

Need dependable residential steam heat for cast‑iron radiators? The New Yorker CGS70‑CNIH is a 7‑section, gas‑fired steam boiler designed for steady performance, straightforward service, and long life. With an 82% AFUE, durable cast iron heat exchanger, and a factory vent damper, this model delivers reliable steam while helping reduce standby losses—an ideal replacement choice for homes with existing steam systems.

  • Brand: New Yorker
  • MPN: CGS70‑CNIH (CGS 70 ANI‑ME 2)
  • Type: Gas‑Fired Steam Boiler, Category I Natural Draft (Chimney Vent)
  • Fuel: Natural Gas (field‑convertible to LP with kit; up to 2,000 ft)
  • Input (NG): 207,000 BTU/h
  • DOE Heating Capacity: 171,000 BTU/h
  • Net IBR Rating (Steam): 128,000 BTU/h  (≈ 533 sq. ft. EDR)
  • AFUE: 82.1%
  • Ignition: Electronic (intermittent), with factory vent damper
  • Venting: Chimney vent; built‑in draft diverter
  • Flue Collar: 7" dia (recommended minimum chimney: 7" × 15 ft)
  • Heat Exchanger: Cast Iron Sections with Metal Section Connectors
  • Water Capacity: 10.7 gallons
  • Connections: 2" steam supply / 2" return; 3/4" NPT gas
  • Electrical: 120V, 60 Hz, 15A (fused)
  • Dimensions (W × D × H): 25‑3/4" × 30" × 40‑7/16"
  • Controls & Safety: Probe‑type LWCO, pressure limit control, 15 psi safety valve; blocked‑vent and rollout safety switches
  • Warranty: 10‑Year Limited Heat Exchanger Warranty (residential)

Reliable Cast Iron Construction

The CGS70‑CNIH uses heavy‑duty cast iron sections with metal section connectors to resist chemical attack and thermal stress—key advantages in steam applications that run for decades.

Steam Output You Can Size

Rated at 128,000 BTU/h Net IBR (about 533 sq. ft. EDR), this model provides consistent steam to radiators throughout typical mid‑size homes. The 82.1% AFUE efficiency helps manage gas costs without sacrificing comfort.

Simple Chimney Venting

As a Category I natural‑draft boiler with a built‑in draft diverter, the CGS70‑CNIH installs on a standard lined masonry or listed metal chimney. A 7" flue collar and a recommended minimum chimney height of 15 ft make venting straightforward for replacements.

Electronic Ignition & Built‑In Safety

An electronic (intermittent) ignition lights the burner only when there’s a call for heat, and the factory vent damper helps cut standby losses. Standard protections include a probe‑type low water cut‑off (LWCO), pressure limit control, 15 psi safety valve, plus blocked‑vent and rollout switches.

Installer‑Friendly Piping & Layout

With 2" steam supply/return tappings, clear service access, and a compact 40‑7/16" height, this 7‑section boiler fits common near‑boiler piping layouts and tight mechanical rooms for faster, cleaner installs.

LP Conversion Option

No natural gas? A factory LP conversion kit is available (use up to 2,000 ft elevation), giving homeowners flexibility where propane is the primary fuel.

Installation and Operation Manual

Spec Sheet

Warranty