Peerless Boilers 104000 Cast Iron Gas Water Boiler 105K Btu

Product Description

The PEERLESS BOILERS 104000 is a packaged cast iron natural gas water boiler rated at 105,000 BTU/h input with an 84% AFUE efficiency rating. It ships as a complete, water-packaged unit featuring spark ignition and an integrated damper and circulator pump, reducing field assembly time. At 360 pounds, this is a substantial hydronic heating appliance intended for permanent installation in residential or light commercial mechanical rooms. Licensed heating contractors and plumbers perform the installation, connecting the unit to the hydronic distribution system and the natural gas supply.

This boiler is designed for forced hot water heating systems in residential and light commercial applications. The packaged configuration means the circulator pump and damper are factory-installed, making it ready for connection to existing or new hydronic piping. Spark ignition eliminates the standing pilot, improving seasonal efficiency. The 84% AFUE rating meets minimum federal efficiency standards for non-condensing gas boilers. It fires on natural gas only and is not field-convertible to propane without an appropriate conversion kit.

Key Features

• 105,000 BTU/h input rating for substantial heating load capacity
• 84% AFUE non-condensing efficiency
• Cast iron heat exchanger for long service life in hydronic applications
• Spark ignition eliminates standing pilot light
• Factory-installed circulator pump and damper in a packaged configuration
• Natural gas fired

Compatibility

Designed as an OEM-style packaged replacement or new-installation cast iron water boiler for forced hot water hydronic heating systems fired on natural gas. This unit corresponds to manufacturer model MI-E-04-SPRK-WPC-NG.

Installation Notes

Installation must be performed by a licensed plumber or heating contractor in accordance with local codes and the National Fuel Gas Code (NFPA 54 / ANSI Z223.1). Shut off the gas supply and disconnect electrical power before servicing or replacing any components. The unit requires proper venting sized to the appliance specifications and a compliant gas line connection before commissioning. Do not operate the boiler without verifying that the hydronic system is filled, pressurized, and free of air locks.

Technical Specifications

• BTU/h Input: 105,000 BTU/h
• AFUE: 84%
• Fuel Type: Natural Gas
• Ignition: Spark Ignition
• Configuration: Water Packaged with Damper and Circulator Pump
• Heat Exchanger Material: Cast Iron
• Weight: 360 pounds

Standard Information

• Brand: PEERLESS BOILERS
• Manufacturer Part Number: 104000