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Weil-Mclain 383-100-030 AB-80C Aqua Balance 80 Input MBtu 95% AFUE Wall Mounted Combination Natural/Propane Gas Water Boilers - Direct Vent


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Product details

Weil-Mclain 383-100-030 AB-80C Aqua Balance 80 Input MBtu 95% AFUE Wall Mounted Combination Natural/Propane Gas Water Boilers - Direct Vent

  • 95% AFUE energy efficiency
  • Available in 80, 120 and 155 Btu/Hr inputs sizes
  • All 3 sizes available in heat-only, or combination space and domestic hot water heating versions
  • Natural or Propane (LP) gas operation – shipped as NG, optional LP conversion kit available
  • 1" diameter ASME certified 316L stainless steel single tube heat exchanger – low pressure drop
  • 4 gallons per minute DHW 155 combi (70-degree rise )
  • Internal 3-speed Grundfos circulator (combi versions only)
  • Compact design – increases 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
  • Unique "3-in-1" vent adapter – readily accepts PVC, CPVC, SS or PP vent materials
  • Multiple vent options – direct vent, 2 pipes or concentric, through roof or sidewall
  • Low NOx SCAQMD compliant
  • Peace of mind warranty




  • Stainless Steel heat exchanger
  • Mounting bracket and hardware
  • Spark ignition
  • Outdoor sensor
  • Honeywell control
  • Temperature & pressure gauge
  • 3-prong power cord
  • Condensate drain
  • Relief valve
  • 3-in-1 Vent adapter
  • Low NOx SCAQMD compliant


  • DHW flat plate heat exchanger
  • 3-speed circulator


  • Propane conversion kit
  • Concentric vent kit
  • Condensate neutralizer
  • Water treatment inhibitor and test kit
  • Easy up manifold kit
  • System circulator wiring kit
  • Boiler stand


  • 10 year limited warranty heat exchanger for residential use
  • 5 year limited warranty heat exchanger for commercial use
  • 2 year limited warranty all other parts

Features include:

  1. 1” Diameter ASME certified 316L Stainless Steel single tube heat exchanger - wide waterway & low pressure drop design
  2. 3-in-1 vent adapter - readily accepts PVC, CPVC, SS, or PP piping materials
  3. Space saving internal condensate trap
  4. 24 VAC thermostat relay, fuse protected with time saving prewired terminal strip
  5. Heavy gauge insulated jacket —  provides quiet operation
  6. Contractor friendly removable sides
  7. Quality brass nuts on heat exchanger for both DHW & space heating (no flimsy clips)
  8. Strategically placed sensors used instead of additional bulky boiler controls
  9. Ignitor - designed for easy access
  10. Blower - quiet operation, with power to vent 100 feet
  11. Venturi that precisely mixes fuel & air for optimal operation
  12. Gas valve, with an energy saving 10:1 turn down ratio - unit automatically adjusts to match the need

Combi Version ONLY:

13. Internal 3-speed circulator

14. 3-way valve with bypass lever

See All Weil-McLain Products

Specification Sheet

Basic Information
MPN ? Manufacturer Part Number 383-100-030
UPC / GTIN 672619210202
Manufacturer Weil-McLain
Series ? A manufacturer's grouping of items that match, coordinate, or complement each other. AquaBalance Series 2
Dimensions and Measurements
Weight ? Weight 77.00
BTU Input 80,000
AFUE 95%
Vent Size (Inches) 2" or 3"
Height (Inches) ? The vertical measurement from bottom to top, measured in inches. 27.56"
Length (Inches) ? The distance of the product's longest side, measured in inches. 16.54"
Characteristics and Features
Material ? The material(s) used in the construction of the product. 316L Stainless Steel
Boiler Type Residential
Fuel Type Natural Gas
Venting Direct Vent
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