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WEIL MCLAIN ULTRA SERIES 3-UE GAS BOILER

WEIL MCLAIN ULTRA SERIES 3-UE GAS BOILER

Ultra Series 3-UE delivers peace of mind, unmatched comfort and immediate payback in energy savings.

 

Models

UG-80, UG-105, UG-155, UG-230, UG-299, UG-399

Key Features

  • 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
  • U-Control gives you the power for easy set-up and maintenance
  • Modulates with 5 to 1 turn-down ratio capability
  • 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

Efficiency Rating Chart

Model

UG-80

UG-105

UG-155

UG-230

UG-299

UG-399

A.G.A. Input (MBH)

80

105

155

230

299

399

DOE Heating Capacity (MBH)

71

94

139

207

270

365*

Net I=B=R Ratings (MBH)

62

81

123

183

234

317

Min. Vent Size

2 or 3 in. PVC/CPVC

2 or 3 in. PVC/CPVC

3 in. PVC/CPVC

3 or 4 in. PVC/CPVC

4 in. PVC/CPVC

4 in. PVC/CPVC

Annual Fuel Utilization Efficiency (AFUE)

95.2%

95.3%

95.6%

95.4%

96.4%

91.7%

*Combustion Efficiency

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