GWA-140-NS Standing Pilot Gas Cast Iron Boiler 80.4% - 140,000 BTU

To design and build the best comfort heating products on the market. To make them first. And to make them last...for decades.

Features and Benefits of the Williamson GWA Cast Iron Boiler

Traditional Cast Iron Sections.

Compact Design: Saves valuable living space.

Stainless Steel Burners: Burners provide fixed primary air-no air adjustment required. Provide quieter ignition, longer life, and improved combustion.

Honeywell controls. High quality brand name controls assure reliability and availability.

Wiring Harness: Plug-in connectors that attach only one way to assure mistake-proof wiring for installation and component replacement.

Convenient Servicing: Accessible controls--control module with diagnostic indicator lights--simplified wiring--vertical flueways--top cleaning.

Cast Iron Sections with Push Nipples: Boiler sections are made of durable cast iron for strength, efficiency and long life. Modern elastomer sealing rings in the port openings assure a permanent watertight seal.

Automatic Vent Damper: Prevents heat from escaping up the chimney when the burners are not operating. Saves fuel. Standard equipment on NS and NI models.

Made in the USA.

Other Standard Features :

Product Warranty

1 year parts / Limited lifetime heat exchanger