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Weil Mclain Products

Weil Mclain 383500700

383-500-700 Ultra 80 Natural Gas Ultra Efficient Condensing Gas Boiler


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Quick Specs: View More

  • Width: 22-5/8"
  • Height: 41-1/8"
  • Depth: 19"

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Discontinued No longer available.

Weil Mclain Ultra 80 Natural Gas Ultra Efficient Condensing Gas Boiler 383-500-700.Taco Pump 007 Included. Available at AppliancesConnection


  • Series 3 Ultra Boiler
  • Gas fired water boiler with cast aluminum heat exchanger
  • Venturi mixing body mixes air and gas providing higher efficiency
  • Designed to operate in low temperature condensing applications
  • Outdoor reset and domestic hot water priority standard
  • Negative regulated gas valve precisely delivers gas to the boiler
  • Electronic control module automatically adjusts blower speed and gas flow rate in response to environment
  • Modulates with 5 to 1 turndown ratio
  • Variable speed motor matches combustion output to heating needs
  • High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications.  


  • Fuel Type:  Natural Gas
  • System Type:  Hydronic (Water)
  • Features:  EI/Spark Ignition
  • Condensing
  • Direct Vent
  • Vent Size:  3"
  • Water Connection:  1"
  • Gas Connection:  1/2"
  • BTU Input:  80000
  • BTU Output:  62000
  • Warranty:  Limited 15 Year Warranty on Heat Exchanger/ 1-year on parts
  • Boiler Type:  High Efficiency
  • Width:  22-5/8"
  • Height:  41-1/8"
  • Application:  Heating
  • Depth:  19"
  • Vent Type:  ABS

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  • Brand:Weil Mclain
  • SKU:383500700
  • UPC:672619185913
  • Stock Id:229509
  • Product Number:383500700


  • Fuel Type:Natural Gas
  • BTU Output:62000
  • BTU Input:80000


  • Height:41-1/8"
  • Width:22-5/8"
  • Depth:19"

    Technical Details

  • Energy Star:No
  • Application:Heating
  • Brand:Weil-McLain
  • Vent Size:3"
  • Water Connection:1"
  • Gas Connection:1/2"
  • Boiler Type:High Efficiency
  • Weight:193.00 lbs