Pennco Silver 1606HSID Cast-Iron Steam Boiler, 187,000 BTU, Natural Gas

The Pennco Silver 1606HSID is a natural gas, cast-iron steam boiler with 187,000 BTU input and 153,000 BTU heating capacity. Its net AHRI rating is 115,000 BTU, about 479 sq. ft., for residential steam heating.

Cast-iron push nipples join the cast-iron sections, so the heat exchanger expands evenly and stays watertight. A CycleGard CG400 low-water cut-off with Intermittent Level Test guards against false readings from foam or unsettled water. The 6 in. steam chest supports strong steam production, and electronic intermittent ignition handles lighting.

An integral draft diverter and vent damper keep the profile low for tight boiler rooms, with a 7 in. vent. Piping connects through two 2-1/2 in. NPT supply and two return tappings and a 3/4 in. NPT gas inlet. A pressure limit control, a 15 psi ASME pop safety valve and a glass water-level gauge are fitted. Electrical service is 120V AC, 60 Hz, single phase, under 12 amps on a recommended 15 amp circuit.

Highlights

• 187,000 BTU input and 153,000 BTU heating capacity

• Net AHRI rating of 115,000 BTU, about 479 sq. ft.

• 82% AFUE

• CycleGard CG400 low-water cut-off with Intermittent Level Test

• 7 in. vent with integral draft diverter and vent damper

• 3/4 in. NPT gas inlet and two 2-1/2 in. NPT supply tappings

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.