New Yorker CGS-C CGS30CNI-H Cast Iron Steam Boiler, 70,000 BTU, Natural Gas

The New Yorker CGS30CNI-H is a compact cast-iron gas steam boiler in the CGS-C Steam Series, made for smaller homes and apartments with one-pipe or two-pipe radiator systems. It draws 69,000 BTU/h on natural gas and vents to a chimney by natural draft.

DOE heating capacity is 56,000 BTU/h and the Net IBR steam rating is 42,000 BTU/h, roughly 175 sq. ft. EDR, with AFUE up to 81.9%. Intermittent electronic ignition and a factory vent damper reduce standby losses compared with standing-pilot boilers. Stainless steel burners and metal section connectors join the cast-iron heat exchanger.

An integral draft diverter keeps the jacket low and vents through a 4 in. flue into a lined masonry or approved metal chimney. Steam supply and return tappings are 2 in. NPT and the gas inlet is 3/4 in. NPT. Controls include a probe-type low water cut-off, pressure limit control, 15 psi safety valve and blocked-vent and rollout switches. An LP conversion kit is available.

Highlights

• 69,000 BTU/h input; 42,000 BTU/h Net IBR, about 175 sq. ft. EDR

• AFUE up to 81.9% with electronic ignition and factory vent damper

• Category I chimney venting through a 4 in. flue

• 2 in. NPT steam supply and return tappings

• Probe LWCO, pressure limit, 15 psi safety valve, rollout switch

Specifications

Good to know

• Gas-fired appliance: it must be installed, vented and commissioned by a qualified installer in line with local codes and the manufacturer's installation manual.