Pennco Silver 1609HSID Cast-Iron Steam Boiler, 299,000 BTU, Natural Gas

The Pennco Silver 1609HSID is a 299,000 BTU natural gas steam boiler with cast-iron sections from the Silver 16 series, intended for contractors replacing residential or commercial steam heating systems.

Cast-iron sections with push nipple connections expand evenly, keeping the heat exchanger tight over years of firing. The 6 in. steam chest supplies a steady volume of steam, and an integral draft diverter with atmospheric venting keeps the installation simple in confined boiler rooms. Connections are 2-1/2 in. NPT for water supply and return and 3/4 in. NPT for gas.

A CycleGard CG400 low-water cut-off with Intermittent Level Test pauses the burner briefly so foam can clear and the water level reads true. Further protection comes from a pressure limit control, a pop safety valve, a flame roll-out fuse link and a manual-reset blocked vent disc thermostat supplied with a spare fuse link. Power is 120 volts AC, 60 Hz, single phase, 12 amps.

Highlights

• 299,000 BTU natural gas steam boiler

• 82% AFUE

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

• Flame roll-out fuse link and manual-reset blocked vent thermostat

• 6 in. steam chest with integral draft diverter

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

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.