Carla Warner

call us (877) 431-2100

a Minnesota family-owned home and kitchen appliance store since 1954.

Eternal GU-145


product specifications

+ expand all
  • Specifications
    Unit capacity  US Gallons
    Flow-rate capacity 26,000 BTU/Hr / 145,000BTU/Hr 
    Controls Digital 
    Fuel type Gas 
    Water pressure range  
    Overheat protection NA 
    Noise level 40 dBA
    Energy Factor 0.95 
    Installation Wall-Mounted 
    Certifications Energy Star,Design 
    Condensate Collector Integrated 
    Venting type External 
    Connection size  
    Color Stainless Steel 
  • Information
    Additional information Stainless Steel Heat Exchanger w/built in; 2 gallon reserve tank; Full flow design and dual activation (thermostat and flow) are compatible with water sense fixtures; Flexible NG / LP / Indoor / Outdoor / Direct Vent / Power Vent conversions in one unit; 3" PVC venting up to 100ft; Clip-on components easily serviced by technicians; Patented self-cleaning utilizes turbulent flow to flush sediments out; Digital display screen for adjusting temperature and easy diagnostics. 
  • Accessories
    Supplied accessories Outdoor Vent Cap Assembly, 3" Horizontal Terminator, Concentric Venting Kit, Remote Contoller Kit, Condensate Neutralizer Kit, Water Heater Stand 
    Optional Accessories  
  • Approximate Dimensions*
    Width 16 7/8"
    Height 29 1/16"
    Depth 13 3/4"
    Weight 90.08 lbs
    Shipping weight NA lbs
    *refer to physical product for exact dimensions
  • Warranty
    Warranty 5 years 
    Additional warranty information 15 year residential / 5 year commercial no leak warranty.  
Product no longer available for purchase.
Have questions? Call us (877) 431-2100


This workhouse provides continuous hot water for residential and commercial applications. The stainless steel internal components and larger heat exchanger make a the GU145 a powerful upgrade. Whether it’s commercial or residential domestic hot water, the Eternal is the right solution. Its triple pass design provides endless hot water with up to 98% efficiency, and a 15 year residential / 5 year commercial no leak warranty.

free shipping Free Shipping on this item