Weil-McLain AB-80H AquaBalance Series 2 80,000 BTU Heat-Only Condensing Gas Boiler

Weil-McLain AB-80H AquaBalance Series 2 80,000 BTU Heat-Only Condensing Gas Boiler

Weil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.

Features

• Compact design to increase placement options
• Heavy gauge insulated jacket provides quiet operation
• Contractor-friendly removable sides
• Pre-wired, plug-in ready electrical design
• Commercial grade 120V power 6' cord with 3 prong plug
• 24 VAC thermostat relay, fuse protected with prewired terminal strip
• Honeywell control with digital display
• Wall mounting bracket and hardware included
• Unique "3-in-1" vent adapter readily accepts PVC, CPVC, SS, or PP vent materials
• Multiple vent options includes direct vent, 2 pipes or concentric, through roof or sidewall
• Strategically placed sensors used instead of additional bulky boiler controls

What Our Experts Think

• High-efficiency performance: The Weil-McLain AB-80H AquaBalance Series 2 80,000 BTU Heat-Only Condensing Gas Boiler delivers condensing efficiency that maximizes fuel use and lowers operating costs.

• Heat-only design: Focused solely on hot-water production without domestic hot water integration — ideal when a separate water heater is used or required.

• Reliable & quiet: Smooth combustion and advanced controls provide consistent comfort with minimal noise.

• Built for durability: Condensing heat exchanger and well-engineered components provide long, dependable service.

Product Q&A

• What type of boiler is this?
  A high-efficiency condensing gas boiler designed to heat hydronic systems (radiators, baseboards, radiant floors).

• What does “heat-only” mean?
  It only heats space-heating water — domestic hot water must be supplied by a separate water heater or indirect tank.

• What fuel does it use?
  Natural gas (propane conversion kits are available separately via qualified HVAC techs).

• Is this suitable for residential use?
  Yes — ideal for homes or small commercial spaces needing reliable heating without domestic hot water integration.

Maintenance Tips

• Annual professional service: Have a licensed HVAC technician inspect and tune the boiler yearly — check burner, heat exchanger, and combustion efficiency.

• Check condensate drain: Make sure condensate lines run clear and have proper slope to avoid buildup or freeze issues.

• Monitor system pressure: Maintain correct water pressure and top up or adjust expansion tank as needed.

• Clean intake & venting: Keep air intake and vent terminations free of debris to ensure safe combustion airflow.

• Inspect for leaks: Periodically check around connections, valves, and piping for signs of water or gas leaks.

• Maintain water quality: Use recommended inhibitors and periodic flushing to reduce corrosion and scale buildup.