Pennco Silver 15C-8D Cast Iron Hot Water Boiler, 262,000 BTU, Natural Gas

The Pennco Silver 15C-8D is a chimney-vented cast iron gas boiler for hot water heating, rated at 262,000 BTU input and 84.0% AFUE. It is the smaller of two 15C sizes spanning 262 to 299 MBH, with a low-profile build for space-limited boiler rooms.

Its Hydrolevel FuelSmart control first uses heat left in the boiler before firing again, and it varies water temperature with system demand. A built-in low water cut-off protects against low water conditions. The cast iron sections use cast iron push nipples, so the joints expand at the same rate and stay watertight without gaskets.

The factory-installed draft hood and automatic vent damper reduce height and footprint; installed height drops by up to 30 in. versus models with an external diverter hood. The boiler has 7 burners, a 7 in. flue, 12.7 gal water capacity and 1-1/4 in. NPT tappings. A 60 gal expansion tank is recommended, and an LP conversion kit is an option.

Highlights

• 262,000 BTU input at 84.0% AFUE

• Hydrolevel FuelSmart control delays burner start to use residual heat

• Built-in low water cut-off

• Integral draft hood cuts installed height by up to 30 in.

• 7 burners, 7 in. flue, 12.7 gal water capacity

• Cast iron push nipple section joints

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.